Decades ago, I started out by shooting a few boxes of .270 Winchester ammo and kept the brass. This once fired ammo case is a great start to reload. But you need dies to reform brass, add a primer, powder and press the bullet.
For me, reloading is the ultimate satisfaction of doing-it-yourself like DIY.
Like chipping a broadhead from a piece of stone and killing game by your own hand as our ancestors did is the ultimate in satisfaction.
The component of a cartridge requires a brass case to hold the powder, primer and bullet.
The brass needs to be “resized” in reloading dies, spent primer removed and replaced (left die) and a bullet seating die (right).
But new brass can be purchased too. See image below.
A reloading press and dies are essential. There are several companies who cater to reloaders.
A basic bottle-neck die set consists of two dies, one to resize the case and another to press the bullet into the case. See Photo above.
Every cartridge caliber needs its own die set. Die set costs to load for hunting typically cost less than $70.00 for a set.
Reloading for long distance hunting and shooting can be more exacting and cost much more. Like this Redding Die Set with micrometer bullet seating.
I had my first Savage .270 Winchester and loaded it with an RCBS Press and dies 40 years ago. I use it to this day and saved untold dollars and Did-It-Myself…to my great satisfaction. I hunted Africa with my custom loads.
The key to good reloading technique is to read reloading manuals and guides, watch reloading video’s on you-tube. Listen and pay attention to areas of safety. Inspect your brass and spent primers for gas leaks, case damage of older brass. RCBS offers a free downloadable reloading guide.
https://www.rcbs.com/rcbs-downloadable-guide.html
Companies like Nosler, Hornady, Speer, Lyman, and several others sell reloading manuals. My two favorite manuals are Nosler and Hornady. Don’t forget all the videos on the web.
Check-it-Out
Recently, I hand-loaded some Alliant Reloader Powder I had in my lower cool dry garage cupboard. 
After sighting in my rifle, one of my moose hunting shot techniques is to shoot multiple “fast” long range shots like I am in the field, off my Bog Death Grip below as an example off my Bog with my heavy recoiling .375 Ruger. 
First, I like my new Browning X-Bolt rifle, but some of you know I had difficulty cleaning the red sealant out of the adjustment screw Allen wrench hole a few weeks back. Thinking my 2mm wrench stripped the hole. But I revisited the adjustment with a tool that I can put pressure on to get deeper in the Allen socket hole.
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? 
