Does fire-formed brass make a difference for accuracy?

Hey everyone! Have you ever wondered how much of a difference using fire formed brass will make for your reloads? I set out to find out just how much smaller our groups can get using once-fired brass in my Thompson Center Compass chambered in 5.56 NATO. Originally I intended to use a 75gr ELD bullet that has shown outstanding accuracy at both 100 and 200 yards, but when I loaded more up using 23.8gr of Varget my groups went from sub-MOA to 4″ at 200 yards. It wasn’t until I asked how this could happen that Charlie Irby asked if I had used a different bottle of powder. Eureka! Thanks for figuring that out, Charlie. The loads shot in this video were Hornady 50gr V-Max bullets over 23.6gr of Ramshot X-Terminator. I developed this load a few months ago and it has shown great accuracy in my rifle. Check out my author page here on TRN to see that video. Thanks for watching and stay tuned for the re-test using a 75gr Hornady ELD bullet!

Share this:

8
Leave a Reply

Please Login to comment
  Subscribe  
newest oldest most voted
Notify of
JH586
JH586

Good stuff, TinMan. I’ll be doing a similar test for .270 here fairly soon. Got to have something for Willie to watch, right!? I love that ole boy. I like the case prep center. Looks handy. Keep up the good work! I need rifle shooting lessons from Charlie, too!

ewetho
ewetho

Nice Lyman Food Dehydrator…I mean brass dryer!

Yes mine always worked better after fire forming and I even got to annealing every time for even greater consistency.

Have not gotten into neck turning yet.

CharlieBrassStuffer
CharlieBrassStuffer

Little changes, little things make such a huge difference when we load for accuracy. Hard learned lessons are the most valuable or at least with me…heheee…they tend to stick.
I like how you ’embrace’ that rifle and that trigger finger is taking on some magic itself! Good shooting there Kurt.