I have been lurking for a while:D
I started casting a little over a year ago and am trying to learn what it takes for the best accuracy in my AR10 and AR15s.
So far I can get 1 1/2 MOA from both rifles.
Have been reloading for 40+ years and the last 15 years have gotten a bit anal about getting tiny groups.
The AR15 I can get 3/8” groups @ 100yds and the AR10 1/2 MOA using jacketed bullets.
Also shoot a match 3-4 times a year out to 2,200yds using a 338 Lapua and 300gr Berger OTM.