7mm tcu in a ar magazine?
uni82 Member Posts: 416 ✭✭✭
edited April 2010 in Perry Shooter Competition Shooting and Reloading Forum
I know it is quite common to neck up a 223 to a 6mm for hunting in the ar platform. Will the 7mm tcu (necked up fire formed 223) fit in the magazine to do the same thing but a 7mm instead of a 6mm? I run a 2.46 OAL in my 7mm tcu. Will the AR accept this round? It is a VERY Accurate round and is extremely reliable. I want it for hunting as well and I have the extra reloading dies lying around... thoughts and concerns?