Originally Posted By: coyote6974Though seldom seen, there have been .22-250's chambered in AR platform rifles. I think they are chambered chambered due to the .22-250 having some feeding issues in a SA rifle. Also in an AR paltform, you need to go with an AR 10. The .22-250 cartridge is to long to fit a standard AR 15 magazine.
If you'd like to stay with a standard AR 15 lower, you can go with a .223 WSSM and get .22-250 performance from your AR with .224 bullets.
the ar 10 would shoot .223 with same or better performance, also what would the max grain bullet be?
thanks this is confusing