Recusant
Member
I've found this to be a very informative post. I own several AR15s and an AR10 in .308. No way to confuse ammo or mags. However, since I don't own or shoot the 300 Blackout I've never even gave a thought to the problem presented in this thread. Now that I have seen the light I'm going to make sure that a fellow who brings his AR15 in 300 Blackout to deer hunt with us keeps his ammo and mags straight
