New 7mm PRC and 7mm Rem Mag: Both Are Great!

Now is the time to buy a 7mm PRC Rifle if you desire one. Getting excited about a new cartridge and rifle is certainly fun. There are now several manufacturers making the 7mm PRC rifle.

In addition, for reloaders, there are dies, brass and powders ready to reload. Missing still, are large rifle magnum primers, but, if you load for other magnums, then you have some magnum primers in your gun safe.

The upsides of the PRC are long range 1000yd Plus accuracy, reloadability, bullet stability at 1:8 twist and target bullets in 190 to 195g such as the Hornady A-Tip Match.

The PRC with rifles of 1:8 twist are capable of delivering off-the-shelf 175g ammo for big game hunting at muzzle velocities of 3000 fps.

The 7mm Rem Magnum 175g off-the-shelf loads in rifles with 1:10 twist are just a bit slower with muzzle velocities of 2850 fps and where cartridge cases are belted for head spacing.

Both cartridges are very accurate for hunting purposes at ranges out to 600 plus yards. But the PRC begins to dominate thereafter with 190g target bullets. 

If you hand load for either target or hunting you can customize loads for your rifle with both the 7mm PRC and 7mm Rem Mag.

Some believe the 7mm bench mark for big game hunting such as moose and elk is 3000fps at the muzzle with the 175g bullet.

With some experimentation, my hand loaded 7mm Rem Mag does the 175g 3000 fps trick in my 1:10 twist Browning Speed and is super accurate with the right powder.  

Trust me, your big game animal won’t know the difference.

The largest advantage of the PRC is for long range target with 190g bullets where the headspace is off the shoulder of the cartridge and tolerances are much tighter. 

So be happy, both the 7mm PRC and 7mm Rem Mag are great cartridges and can coexist for hunting decades to come.

Shooting a wide variety of bullet weights though, the 7mm Rem Mag is said to be more versatile for accuracy due to the slower twist rate. An example, would be shooting 120g to 175g bullets for a variety of game, will on average shoot more accurately. 

Happy 7mm Hunting!

 

 

 

Reloading: 6.5mm Lapua Mega 155 bullet now in stock at Midway

May 2, 2023 In stock

One of my favorite New England deer/bear hunting 6.5 mm bullets for my Creedmoor. It hammers them and puts brown to the ground in brushy terrain. 

Lapua Mega Bullets 264 Caliber, 6.5mm (264 Diameter) 155 Grain Soft Point Box of 100

Quote from Midway-

“Mega soft point bullets are constructed to be an ideal hunting bullet. The bullet’s flattened nose causes a powerful shock immediately after impact. The jacket extends all the way to the tip of the bullet, protecting the nose both in the rifle and flight, if it hits a branch or twig. The crown-headed jacket tip is thinned toward the point and deliberately folded to ensure even opening and mushrooming on impact up to 2.5 times the original diameter.

The jacket is substantially thickened at its middle section which arrests the mushrooming at precisely the right stage. The “step” farther inside the jacket holds the lead core within the jacket. This construction combines maximum weight retention (averaging 90%) and ideal penetration with superb accuracy.”

See my article below using Superformance powder.

6.5 Creedmoor Superformance Load Data with Lapua Mega 155 grain Soft Point Flat Nose

Another article on round nose bullets below.

Round nose bullets drop them faster! Hornady makes round nose for 6.5mm too.

Round Nose Bullets, Too Often Overlooked

Good Hunting!

Nosler AccuBond Long Range for 7mm Rem Mag

I have been a Nosler fan since my African Safari some years back and have taken two bull moose and whitetails with AccuBonds from 140 grain up to 300 grains with great success on big game.

Accordingly, I have written extensively about Nosler bullets in my New Hampshire Rifleman Magazine using AccuBonds, Partitions as well as E-Tips. All world class hunting bullets that hit hard, stay together and penetrate deep. Handloading my own bullets are key to my satisfaction and success.

The AccuBond Long Range ABLR bullet is in a class all by itself, providing very low drag, a bonded bullet that can mushroom as low as 1350 fps and stays together up to 3000 fps. No other bullet can make that claim.

https://www.nosler.com/products/bullets/product-line/accubondr-long-range.html

 

The ABLR is offered in 150g, 168g, and 175g bullets for those who may encounter long range shots. In my case, I will be hunting Newfoundland Moose among the myriad of bogs that can span many hundreds of yards.

Below is the Trajectory Chart and Delivered Energy. See the 500 Yd data in bold for 2100 ft-lbs delivered energy.

 

Trajectory
Input Data
Manufacturer: Nosler Description: Accubond Long Range Spitzer (G7)
Caliber: 0.284 in Weight: 175.0 gr
Ballistic Coefficient: 0.364 G7 (ASM)
Muzzle Velocity: 2974.0 ft/s Distance to Chronograph: 0.0 ft
Sight Height: 1.50 in Sight Offset: 0.00 in
Zero Height: 0.00 in Zero Offset: 0.00 in
Windage: 0.000 MOA Elevation: 0.000 MOA
Line Of Sight Angle: 0.0 deg Cant Angle: 0.0 deg
Wind Speed: 10.0 mph Wind Angle: 90.0 deg
Target Speed: 0.0 mph Target Angle: 90.0 deg
Target Height: 50.0 in
Temperature: 48.0 °F Pressure: 29.92 in Hg
Humidity: 40 % Altitude: 0.0 ft
Vital Zone Radius: 5.0 in
Std. Atmosphere at Altitude: No Pressure is Corrected: Yes
Zero at Max. Point Blank Range: No Target Relative Drops: Yes
Mark Sound Barrier Crossing: No Include Extra Rows: No
Column 1 Units: 1.00 in Column 2 Units: 1.00 MOA
Round Output to Whole Numbers: No
Output Data
Elevation: 3.368 MOA Windage: 0.000 MOA
Atmospheric Density: 0.07799 lb/ft³ Speed of Sound: 1104.6 ft/s
Maximum PBR: 373 yd Maximum PBR Zero: 315 yd
Range of Maximum Height: 172 yd Energy at Maximum PBR: 2393.8 ft•lbs
Sectional Density: 0.310 lb/in²
Calculated Table
Range Drop Drop Windage Windage Velocity Mach Energy Time Lead Lead
(yd) (in) (MOA) (in) (MOA) (ft/s) (none) (ft•lbs) (s) (in) (MOA)
0 -1.5 *** 0.0 *** 2974.0 2.692 3436.3 0.000 0.0 ***
25 -0.7 -2.8 0.0 0.1 2939.7 2.661 3357.5 0.025 0.0 0.0
50 -0.2 -0.4 0.1 0.2 2905.6 2.631 3280.0 0.051 0.0 0.0
75 0.0 0.0 0.2 0.3 2871.6 2.600 3203.8 0.077 0.0 0.0
100 -0.0 -0.0 0.4 0.4 2837.9 2.569 3128.9 0.103 0.0 0.0
125 -0.3 -0.2 0.7 0.5 2804.3 2.539 3055.3 0.130 0.0 0.0
150 -0.8 -0.5 1.0 0.6 2770.9 2.509 2983.0 0.157 0.0 0.0
175 -1.7 -0.9 1.3 0.7 2737.7 2.479 2911.9 0.184 0.0 0.0
200 -2.8 -1.3 1.7 0.8 2704.7 2.449 2842.2 0.212 0.0 0.0
225 -4.2 -1.8 2.2 0.9 2671.9 2.419 2773.7 0.239 0.0 0.0
250 -6.0 -2.3 2.7 1.0 2639.4 2.390 2706.5 0.268 0.0 0.0
275 -8.0 -2.8 3.3 1.2 2607.0 2.360 2640.5 0.296 0.0 0.0
300 -10.4 -3.3 4.0 1.3 2574.9 2.331 2575.8 0.325 0.0 0.0
325 -13.1 -3.8 4.7 1.4 2542.9 2.302 2512.3 0.355 0.0 0.0
350 -16.1 -4.4 5.5 1.5 2511.2 2.274 2450.0 0.384 0.0 0.0
375 -19.5 -5.0 6.3 1.6 2479.7 2.245 2389.0 0.414 0.0 0.0
400 -23.2 -5.5 7.3 1.7 2448.4 2.217 2329.1 0.445 0.0 0.0
425 -27.3 -6.1 8.2 1.9 2417.4 2.189 2270.3 0.476 0.0 0.0
450 -31.8 -6.7 9.3 2.0 2386.5 2.161 2212.8 0.507 0.0 0.0
475 -36.6 -7.4 10.4 2.1 2355.9 2.133 2156.4 0.538 0.0 0.0
500 -41.8 -8.0 11.6 2.2 2325.5 2.105 2101.1 0.570 0.0 0.0
525 -47.5 -8.6 12.9 2.3 2295.4 2.078 2047.0 0.603 0.0 0.0
550 -53.5 -9.3 14.3 2.5 2265.4 2.051 1993.9 0.636 0.0 0.0
575 -60.0 -10.0 15.7 2.6 2235.8 2.024 1942.0 0.669 0.0 0.0
600 -66.9 -10.6 17.2 2.7 2206.3 1.997 1891.2 0.703 0.0 0.0

 

04-Apr-23 13:05, JBM/jbmtraj-5.1.cgi

 

© Copyright 2023 

 

 

Browning X-Bolt Speed – Nosler 168g ABLR w/ IMR 4831 Groups – Updated 2/2/23

As you may know, I have been working up hand-loads for my moose hunt and finding the Nosler 168g ABLR reaching over 3000 fps with IMR 4831. But the question is, with what accuracy or groups?

Well, I shot this group below and it looks like a tight 3/4″ except for the flyer. I shot the third shot in the upper right target and extrapolated its position on the string below. Why I shot that upper right target? Because I wanted a smaller target as a focal aim point.

But it needed to be repeated in the second target below for me to validate it. The trigger is a heavy 4 lbs. but I was able to get used to where it breaks. The thin mountain barrel does heat fast and after 3 shots to warm it, it begins to string. 

I repeated the same shots a week later with all the same components at 100 yards. The first 3 shots group 3/4 ” from a cold barrel and the 4th shot drops an inch. I know that a lighter trigger may also help. But overall, I was very pleased with the cold shots for hunting purposes.

Tests continue Using my Labradar

I loaded some 168g ABLR’s with hot H1000 Powder to compete with the IMR 4831. See below low left and right 100 yd 3 shot cold barrel groups with extreme spread of 78 fps an 2 inch groups. The IMR 4831 wins!

I did shoot 168 ABLR today for a third bench rest group for the IMR 4831 and Statistics. Below this group was 1 1/4 inches. Shown below with associated Labradar Stats with Extreme Spread of 14.34 fps and a Std Deviation of 8.17. Very nice indeed!

Labradar Report for IMR 4831

Device ID LBR-0028541                                      
                                                             
Series No 4                                             
Total number of shots 3                                 
                                                             
Units velocity fps                                         
Units distances yd                                         
Units kinetic energy ft-lbf                                
Units weight grain (gr)                                    
                                                             
Stats – Average 2937.25 fps                                 
Stats – Highest 2946.69 fps                                 
Stats – Lowest 2932.35 fps                                  
Stats – Ext. Spread 14.34 fps                               
Stats – Std. Dev 8.17 fps                                   
Shot ID V0 V25 V25 V50 V75 V101 Ke0 Ke25 Ke25 Ke50 Ke75 Ke101 Proj. Weight Date Time
1 2933 2893 2893 2852 2814 0 3207 3120 3120 3034 2953 168 2/2/2023 13:01:22
2 2932 2882 2882 2841 2801 0 3207 3098 3098 3011 2925 168 2/2/2023 13:02:44
3 2947 2907 2907 2868 2829 2788 3238 3151 3151 3067 2984 168 2/2/2023 13:04:08

 

Interestingly, I did note that a drop in outside temperature affects ignition and velocity. Last week I shot at 37degrees F and MV avg was 3003. Today at 26 degrees F,  MV avg was 2937 a drop of 70 fps. At 600 yards that equates to a drop of 4 inches on a moose. I’ll keep that in mind!

More Soon…

© Copyright 2023 All Rights Reserved.

 

Browning X-Bolt Speed 7mm Rem Mag with Hand Loaded IMR 4831 Powder and 168g Nosler ABLR for Moose

X-Bolt Speed

My Browning 26 inch 9.5 twist rifle barrel likes hand loaded 7mm 168 grain Nosler ABLR with a hot load of IMR 4831 per Nosler web load data. I chrono’d an average of 3005 fps. Wow! These are cookin’ !! COAL was 3.255 inches. No pressure signs except the primer was a bit flatter… as expected. Three rounds measured 3/4 inch but more testing will firm that up. I will change the trigger to a Timney at some point as it is impractical to easily adjust with a 2mm Allen wrench on a sealant filled screw. If you like 4 pounds for a factory trigger it works, for some hunters, not me. All my rifles are set near 3 pounds. 

Research with Bryan Litz Applied Ballistics Book finds that  the Nosler 175g ABLR Form Factor of 0.94 is considered low drag but the 168g ABLR is considered VLD Very Low Drag with Form Factor of 0.896 thus holding its energy better at long range than the 175g ABLR.

Assuming I use the 168 Nosler ABLR for long range Newfoundland moose hunting, I can reach out in a large open terrain tundra-like bog with my BOG tripod Death Grip to steady the shot out to 600 yards.

Distances I will practice this summer, in prep for the hunt, is out to 600 yards. With a 300 yd zero, at 100 yards the bullet is 3 inches high and 150 yards is 4 inches high, dead-on at 300 yards and Max Point Blank Range is 376 yards. At 600 yards terminal energy is 1822 ft-lbs and still traveling over 2200 fps. At 400 yds it holds a truck-load of energy at 2200 ft-lbs. Just have your laser rangefinder at hand and be ready for a follow-up shot. The 60 degree bolt throw is a big plus for very fast second shots.

Below is the JBM ballistic report for the Nosler 168g ABLR at 3005fps and zeroed for 300 yards.

 

Trajectory
Input Data
Manufacturer: Nosler Description: Accubond Long Range Spitzer (G7)
Caliber: 0.284 in Weight: 168.0 gr
Ballistic Coefficient: 0.353 G7 (ASM)
Muzzle Velocity: 3005.0 ft/s Distance to Chronograph: 10.0 ft
Sight Height: 1.50 in Sight Offset: 0.00 in
Zero Height: 0.00 in Zero Offset: 0.00 in
Windage: 0.000 MOA Elevation: 0.000 MOA
Line Of Sight Angle: 0.0 deg Cant Angle: 0.0 deg
Wind Speed: 10.0 mph Wind Angle: 90.0 deg
Target Speed: 10.0 mph Target Angle: 90.0 deg
Target Height: 48.0 in
Temperature: 45.0 °F Pressure: 29.92 in Hg
Humidity: 0 % Altitude: 0.0 ft
Vital Zone Radius: 5.0 in
Std. Atmosphere at Altitude: No Pressure is Corrected: Yes
Zero at Max. Point Blank Range: No Target Relative Drops: Yes
Mark Sound Barrier Crossing: No Include Extra Rows: No
Column 1 Units: 1.00 in Column 2 Units: 1.00 MOA
Round Output to Whole Numbers: No
Output Data
Elevation: 6.548 MOA Windage: 0.000 MOA
Atmospheric Density: 0.07859 lb/ft³ Speed of Sound: 1101.3 ft/s
Maximum PBR: 376 yd Maximum PBR Zero: 318 yd
Range of Maximum Height: 174 yd Energy at Maximum PBR: 2318.7 ft•lbs
Sectional Density: 0.298 lb/in²
Calculated Table
Range Drop Drop Windage Windage Velocity Mach Energy Time Lead Lead
(yd) (in) (MOA) (in) (MOA) (ft/s) (none) (ft•lbs) (s) (in) (MOA)
0 -1.5 *** 0.0 *** 3009.8 2.733 3378.7 0.000 0.0 ***
50 1.4 2.8 0.1 0.2 2938.4 2.668 3220.4 0.050 8.9 17.0
100 3.4 3.2 0.4 0.4 2867.8 2.604 3067.5 0.102 18.0 17.2
150 4.3 2.7 1.0 0.6 2798.0 2.541 2920.0 0.155 27.3 17.4
200 4.0 1.9 1.8 0.8 2729.1 2.478 2777.8 0.209 36.8 17.6
250 2.6 1.0 2.8 1.1 2661.0 2.416 2640.9 0.265 46.6 17.8
300 -0.0 -0.0 4.1 1.3 2593.7 2.355 2509.2 0.322 56.7 18.0
350 -3.9 -1.1 5.6 1.5 2527.4 2.295 2382.5 0.381 67.0 18.3
400 -9.2 -2.2 7.4 1.8 2462.1 2.236 2260.9 0.441 77.6 18.5
450 -15.9 -3.4 9.5 2.0 2397.7 2.177 2144.1 0.503 88.5 18.8
500 -24.1 -4.6 11.9 2.3 2334.2 2.120 2032.2 0.566 99.6 19.0
550 -33.9 -5.9 14.6 2.5 2271.7 2.063 1924.8 0.631 111.1 19.3
600 -45.4 -7.2 17.6 2.8 2210.3 2.007 1822.1 0.698 122.9 19.6
650 -58.7 -8.6 20.9 3.1 2149.8 1.952 1723.7 0.767 135.0 19.8
700 -73.9 -10.1 24.6 3.4 2090.3 1.898 1629.7 0.838 147.4 20.1

 

25-Jan-23 07:58, JBM/jbmtraj-5.1.cgi

 

 

 

 

 

 

 

Reloading the 7mm Remington Magnum for my Browning X-Bolt w/ New Norma Brass

I purchased Norma Brass this January for reloading my new Browning Rifle for moose hunting. There were no other Brass manufacturers available on the Internet, that I could find at the time… but glad I bought them.

I purchased a lot of 50, packed in plastic bags and boxed. How did they weigh-out? 

Accordingly, I weighed 10 case random sample and did a Standard Deviation, Average and Extreme Spread. 

Std Dev.  0.74 grains

AVG Wt. 214.83 grains

Extreme Spread of 2 grains in the ten cases. That is excellent!

 

 

 

I took a photo of the flash hole from inside this unsized case. Notice that there is no apparent burr. Some manufacturers like Norma drill the flash hole instead of punching. Drilling is better!

I found this informative review below of Norma Brass on line. 

Norma 7mm Rem Mag Brass Review

 

Adding the primers with my press was much more difficult as they were new and difficult to seat. The good news is that these primer pockets will firmly hold the primer and make reloading the case less susceptible to loose primers. Norma says the brass can be reloaded  up to 10 times according to the above article. 

I used my RCBS Rock Chucker Press, RL-22 powder and loaded Nosler 7mm 175 grain AccuBond Long Range. The bullets are boat tail thus I thought it would make it a bit easier to press the bullet.  They still pressed hard but did not hurt the case.

I shall chamfer the inside of case necks on the next batch to make the bullets press easier. 

I shot enough to zero at 100 yards (groups 1 1/4″) then chronographed them at 2615 fps. I expected a much faster bullet. I was hoping for 2900 fps says Nosler data with 1:9 twist and 24 inch barrel. My barrel is 1:9.5 twist with a 26 inch barrel. Accordingly, I will experiment with powders to see what I can safely wring out of these bullets. Inspecting the fired case and primers look normal. 

The trigger still pulls heavy for me (4 lbs) and soon I will have a Timney to swap out the factory trigger. 

I also loaded some Nosler 168 grain ABLR’s with IMR 4831 and they chrono’d at around 3005 fps and grouped at 3/4 inches at 100 yards. I liked that load!

This round may turn out to be better for long range moose than the 175 ABLR.

More Soon!

 

 

 

Perfect Rifle Cartridge for Big Game?

Is there a perfect rifle cartridge for big game? Great Campfire fodder sure to keep you up at night.

Big Game Cartridges are purchased and used for many different reasons, thus for some big game animals, they are better and sometimes… they are not.

The distances we encounter and hunt big game like deer, bear, and moose as well a bullet shape and construction play a large part of a big game cartridge.  And whether the game you are hunting can be dangerous, like a brown or grizzly bear.

I believe the vast majority are deer hunters like myself , who, on occasion hunt bear, wild boar, elk, moose and such.

Many cartridges were originally designed as a target cartridge like the recent 6.5 Creedmoor. The .308 Winchester and 30-06 Springfield were designed as a cartridge used in battle in WWI, WWII, Korea and Vietnam, later valuably used as a target round and hunting round.

It was the ballistics data experts and students that realized that surplus ammo was used inexpensively for both target and hunting. Most were of spitzer bullet design for longer range.

Later post WWII hunters learned that a round nose bullet at shorter ranges inside of 200 or so yards were like the hammer-of-thor thus dropping game pronto. Lever guns like the 30-30 and 35 Winchester as well as the 45-70 cannot use pointed tip bullets and were terrific game stoppers.

Today many hunters like long range hunting and go west or south to prairies and bean fields thus spitzers are the bullet of choice for 300 to 800 yards or more.

Or some believe the use of light copper spitzer bullets at high velocities of over 3200fps with 100% retained weight to deliver hydrostatic shock and a lights out punch to game like black bear at close range. 

Here in New  Hampshire, most game like deer, bear and moose are harvested at around 40 to 50 yards or so. Spitzers are not necessary here but if you do not reload or hand-load, then spitzers are what you will find on store shelves these days.

Bore sizes like .22, 6mm/.243, 6.5mm, 7mm, .308, .338 and .375, 416, 45, and 50 caliber are common but are used on certain game for reasons of killing capacity(aka energy delivered) and distances encountered. Yes, I missed a dozen other less common calibers, but you get the idea.

The key to any big game cartridge really is the bullet and its construction, like bonded, A-frame or copper for the task desired. Coupled with this, and equally important is sectional density. It is the ratio of bullet weight (M) to the square of bullet diameter and is very important for penetration. (SD= M/D²). If you are a student of ballistics and killing power the following website will add to your knowledge for winter reading.  

https://www.chuckhawks.com/sd.htm

So in the end, if you know distances to deer for example and the terrain and forest type you are hunting them you can gear your rifle cartridge and bullet to the game,   thus making it more ideal.

 

You guessed it, there is no perfect big game cartridge. To maximize your cartridge, include the size of game, terrain, distance, bullet construction including sectional density in your calculations. Below is another website for your winter reading.

http://www.chuckhawks.com/rifle_bullet_killing_power.htm

Good Hunting!

© Copyright 2022

 

 

 

Ballistic Gel 6.5 Creedmoor Test Nosler 129g ABLR vs Hammer Hunter Copper 124g

At New Hampshire Rifleman we tested both 6.5 Creedmoor bullets from Nosler and Hammer in 10% FBI formulated ballistic gel.   Tests were conducted at point blank range. Lets look at the ballistic gel blocks visually to see what happened.

For the test to be valid, e. g., apples to apples,  I needed a constant comparable speed for this test, thus both clock 2900 fps give or take so the wound channels would be comparable.

Below is the wound channel of the Hammer Hunter 124 grain at 2900 fps entering at left.

The dark color you see above is where the bullet burned the gel as it passed.  No simulated bone was or skin was placed on entry, just the gel. The bullet opened up at around 3.5 inches and fragments of petals can be seen flying after 8 to 10 inches of penetration  and exited the16 inch gel block. And the main bullet stopped at around 27 inches with more fragments in that second 16 inch block.

If moose size game is hit with this 124 grain bullet, the great  tissue damage along the 11 inch core damage track will bring him down as will the bullet at 27 inches. Note the bullet travel is in a straight line. 

Overall, the bullet lost 55 grains of copper in its travel but much of it would have exited a whitetail if hit broadside at that speed. 

At a slower speed, perhaps the fragments would spin off sooner aka in the middle of the deer adding to the possible DRT (drop right there)

Below is the wound channel from the 129 grain Nosler ABLR entering on the right and peaking energy we can see  at 4 to 5 inches inside. Where it can do the most damage as penetration progresses. I would opt for a much heavier bullet for moose.

 

The Nosler wound channel above appears more explosive but shorter in length. The bullet opens after 1/1/4 inches and does massive damage at five inches. Pieces of the Nosler bullet are seen in that explosive center. It lost around 58 grains of copper and lead in the first 6 inches of penetration but the core stayed together and entered the second block by 6 more inches.

Both bullets lost nearly the same weight. The Hammer bullet was able to turn those copper petals into more tissue damage.

Both bullets were recovered below.

Oct 14 target after ballistic test. Both bullets near 1/2 inch of each other at 100 yards. Nice!

Conclusion:

Both will kill deer humanely at that speed, and due to the major damage of the bullet travel cavities, the deer will likely drop right there. Expected terminal velocities on deer at 100 yards to be in the 2600 fps range. 

I like the fact that the Nosler opened up faster and delivered more energy to the ballistic gel. But both are great bullets, I would prefer heavier bullets for larger game. Of course the hammer hunter has no lead at all but finding those petals in the HH shot meat may bother me as I love my venison. 

More tests coming later for different bullet weights.

Good Hunting!

© Copyright 2021 All Rights Reserved

 

 

Hammer Hunter: New USA Made Bullet On The Market – Initial velocity/ powderTests

The “Hammer” Copper Hunter bullet is the new kid on the block. Like other copper hollow points, one version called the Hammer Hunter, opens with propeller like blades and folds back under high velocity to release the petals into five bullets. The base unit and the four petals still continue penetration.

What makes Hammer Bullets different?  They are US patented and made on a CNC lath with tight tolerances.

The bullets are designed for hand-loaders and the loader needs to have experience with loading rifle cartridge’s  cartridge load data and work up loads in a safe manner.

The first 6.5mm bullet I velocity tested in my Weatherby Vanguard Weatherguard 6.5 Creedmoor was the 124 grain Hammer Hunter (HH) because it lookes like a great deer hunting weight.

Bullet    Powder    Grain   Seat depth    Muz-Vel

124     H4350       42         2.805            2620

124     H4350      42.5       ” ”                 2653

124     H4350      43           ” ”                2665

I realized that this H4350 powder was slow. Next I had some Superformance Powder, so I loaded and chronographed these HH  below

124     Superf     47.5      2.795             2840

124    “”              48         “”                   2873

124    “”              48.5     “”                    2922

Next  I loaded 110 grain HH using Varget Powder

Bullet    Powder    Grain Seat Depth    Muz-Vel

110      Varget      40         <2.800         2946

110        “”           40.5         “”               2947

110       “”            41           “”                2956

110       ”              41.5       “”                 3010

Next the 85 grain HH

85        “”           43             “”                3200

Heavier HH bullets have not been test fired yet.

Cleaning the barrel with Hoppes #9, I produced 8 very dirty swabs and a quick bronze brushing, followed by a solvent swab that was satisfactorily clean. I am going to purchase some Boretech Cu+2 cleaner and some nylon brushes. The Boretech adds say it does not stink and says will not harm barrel. So we will give it a try.

I have learned to prep my hunting barrel with a fast evaporating solvent degreaser like KG Industries 3, because it removes lubricant and appears to make cold shots group with later shots in a warming barrel.

Note: I observed an on-line ballistics gel test at slower velocities, like from a long range hit, traveling 1700 to 1800 fps and the petals opened but remained attached. The test observer suggests lower than that speed, the petals did not open. Higher velocities and the petals do reliably detach aka at 2600 fps as mini bullets, and create a much larger wound channel.

We will do some ballistic gel tests at some point soon. 

So far I give the tests a big thumbs up.

© copyright 2021

 

Deer Rifles: Shooter Accuracy/Shot Placement Thoughts

The “given” here, is that the rifle you chose is capable of an ethical deer harvest.

Next is US, you and me. The best way to explain what drops a deer fast, is largely, the accuracy of WE the shooters and shot placement.

As i began the article, of course the caliber and cartridge must be adequate. For an ethical deer harvest, a delivered energy minimum is suggested at 1000 ft-lbs in order to penetrate through vitals such as heart and lungs.

Exit wounds are helpful for tracking thus, I prefer more delivered energy. With todays rifles, it’s a given, that the rifle has some bench rest accuracy at or near MOA meaning shots will group about an inch spread at 100 yards.

My favorite deer calibers for most hunters begins with the 243 Winchester for really low recoil yet adequate for broadside shots, and all the way to a 300 Win. Mag up to .375 H&H or .375 Ruger  for dangerous or very large game.

If you hand load as I do, all the better, then you can customize your load to fit the game you hunt.

The 300 Win Mag and .375 can be downloaded for deer as well. I download the .375 Ruger with a 235 grain Speer Hot Core at speeds of around 2200 fps for out to 100 yards or so. I took a 150 pound red deer at 40 yards with a 225 grain flat nose bullet traveling at 1600 fps hand loaded in my .375 Ruger. She fell dead in 10 yards with full penetration and a heart shot.

My Safari rifle, years back,  was a .338 Win Mag with 250 grain Nosler Partition bullets.  I used it on plains game animals such as blesbok, impala, springbok and Kudu. They all fell right there, to a single well placed shot in the heart/lung area.

There are several rifle attributes for many, including me, to shoot accurately. First, The deer rifle must fit when I shoulder the rifle with a hunting jacket on.

Too long a stock, and it will never make it quickly to your cheek on cold November day in New England.

Second, a trigger that is crisp and not too heavy. For me, three pounds is about right. If you don’t know when your trigger breaks to fire, then you are likely to have a difficult time placing the shot correctly.

Third, I must be able to handle the recoil.

Fourth,  if using a scope as I do, a good cheek weld in alignment with the scope is vital. I love Leupold scopes for optical quality at a fair price. They are rugged!

Fifth, is a state-of-the-art recoil pad that reduces felt recoil by 50%. Less felt recoil translates effectively to improved accuracy. I use the Pachmayr Decelerator™.

Sixth, is a gun that is not too heavy to carry all day. My limit is around 9 pounds with scope for large calibers but prefer 7 to 8 pounds with scope here in New England.

Bullet Attributes

Best in class bullets today for hunting big game begin with bullets that tend to stay together such as core-lock types but even better are partition bullets where the forward point is soft and the rear partition is hard  and continues to penetrate. Today we also have both highly effective bonded bullets, such as the Nosler AccuBond et al., where the lead is bonded to the copper and monolithic gilding copper bullets. Bullets like the Nosler E-Tip and Hornady GMX, where the bullet flares inside game with mushrooming or petals and retains nearly 100% of its original weight.

Pure copper monolithic bullets from Barnes work too and retain most weight, but I have had difficulty keeping my barrels clean of copper, so I avoid them. Some folks find them excellent in their rifle and that is fine.

Most bullets offered today for center fire rifles are pointed spitzer types often with synthetic tips that push open a hollow cavity and flare or mushroom. These are great all around bullets that are best shot in the open and at long distances. But don’t discount round nose and flat nose bullets out to 300 yards. These bullets are designed for heavy brush, shorter range and deliver great punch to drop big game. I even have a 160 grain round nose from Hornady for my 6.5 Creedmoor. However I must hand load them as there are no commercial off-the-shelf rounds widely available for deer size game.

I prefer either Nosler or Hornady bonded or monolithic for spitzer styles and core lock copper jacket styles offered by Hornady for round nose short range brush.

There is a movement perhaps toward monolithic copper, I believe because, it maintains nearly 100% of its bullet weight in game. I prefer both the Nosler gilding copper E-Tip or Hornady gilding GMX.  Experimentation will determine if you like the accuracy from them in your rifle.

Shot Placement

In a perfect world the game is standing broadside. Bullets should be placed in the heart/lung area which, if broadside is just behind the front leg about a third up from the brisket.  Shots that are facing are iffy if you can’t place the bullet in the center of the chest to take out the heart and damage both lungs. Best shot placement, besides broadside, often require a more powerful rifle above the 243 Winchester when the animal is quartering away or towards and capable of breaking bone and reaching vitals. Neck shots as vital vertebrae and arteries are a guessing game for me, so I resist that shot.

Bullet Speed and Energy

Bullet speed has only one terminal ballistic requirement, that delivers sufficient energy to reach and damage vital organs for a quick death.  As I said earlier, many have evidenced that delivered bullet energy in the 1000 ft-lb is a minimum for deer. Talk about hydrostatic shock for a very fast bullet for an instant deer dropping kill has some proponents, but again, shot placement is key. Equally are those who shoot large diameter bullets that go much slower.  Both will kill humanely.  The greatest example of large and slower is the 50 caliber muzzleloader which launches a 250 to 400 grain projectile at just over 2000 fps.

Shot placement is key for a quick humane kill!

I shot a trophy Texas buck with my T/C 50 cal. muzzleloader right behind the front leg with a 295 grain bullet at 2300 fps. He fell as if pole axed with his legs in the air.

And on occasion, the hydraulic effect of driving fluids like blood from a heart shot to hydraulically damage the brain from a chest wound does happen on occasion. This effect can turn the brain off like a switch for an instant kill.

In closing, the key here is still shot placement.

Good Hunting!

©Copyright 2021