Also why do I have the suspicion it’s gonna shoot really similar. I had expectations that it would feel like 7.62x39.
It’s originally designed to run in the same rifle with just a barrel change so it has to be more similar than different. But shoot supers out of a <9" barrel and you will immediately know it’s not 5.56 by virtue of the fact those around you aren’t threatening to beat you with your rifle 🙂 Shoot subs suppressed and you’ll likewise know it’s not 5.56 by virtue of it actually being quiet.
That is actually the reason I chose to build this rifle, I shot my brother’s 10.5" 5.56 AR with a brake and it blew my eardrums out while I was wearing walker earpro. I’m a big fan of shorty barrels, so I figured this was the cartridge to run with.
I am friends with pla.boi and will be running his newest breek 30 cal ftn with this setup. I’m gonna load 220grs in the cartridges instead of these factory 125s.
it should be 4 times the weight if you’re loading subs like the round was designed for so it shouldn’t feel the same at all
300 is a 7.62 round in a necked down 5.56 case…. So yeah, gonna feel similar. As was previously stated, it was designed to shoot out of the same rifle as 5.56 with just a barrel change.



