As you may have read already, my carbine is a marriage of a Colt upper with a 1/7 barrel twist (a gift) and a Bushmaster Mil-Spec. lower and working well except for the trigger. This article is very short but sweet for those who know little about triggers, like me. My AR trigger is an 8.5 pound trigger and bumps and drags like bad chalk on a chalkboard in school, till the sear breaks and the rifle fires. A long range target shooters nightmare!
Grouping at 100 yards is around 1.75 inches and perhaps largely a trigger issue with off the shelf 55 grain ammo. Clearly the trigger needs to be replaced if long range shooting is your goal. I expect sub-moa from this rifle but not with that mill spec. trigger!
Here are 2 youtube video’s I found on-line for you and I to see on Timney Triggers (may test some) and Geiselle triggers of both single and 2 stage types. Cost is around $200 to $300 for these. I am learning just like many of you with a new AR in the gun safe. I make no recommendations here just information as a fellow shooter. As I said, my Carbine has a 1/7 barrel twist making it more of a long range heavy bullet competition rifle. More on that soon.
I have contacted Timney and hopefully we will have some triggers for us to test this spring.
Resources:
http://www.brownells.com/search/index.htm?k=ar+15+triggers&ksubmit=y
https://xtremegunsandammo.com/gun-parts-and-accessories/triggers.html
The 375 Ruger Cartridge is still growing in popularity. It is one of the most powerful cartridges in North America. When coupled with state of the art recoil pads like the Pachmayr decelerator or the Simms Vibration Laboratory SVL recoil pad which reduce felt recoil to 50% it is likened to a 30-06 or .270 recoil and very manageable indeed. My M77 Ruger African rifle shoots it so well in such a variety of bullets that it just makes me smile when paper holes overlap like a Venn diagram regularly at 50 yards and are sub-moa at 100 yards. I achieve the greatest satisfaction by handloading them. I have written lots of articles before in my magazine here for you to search out too. Barnes Triple Shock has several heads in .375. I intend to try some Barnes 235 grain heads and download them for deer. Below is a Barnes video demonstrating the lethal nature of the all copper head.
