frankmako
Member
I got a Remington XP-100 that i used in the early 80's to shoot Metallic Silhouette. The XP is in 30-223. I got all of the reloading items for the round and tons of formed brass. I am building a AR rifle and I got to thinking about dropping a 300 Blackout barrel on the gun. So the big question,, is the 30-223 round the same round as the 300 Blackout?