Thread: 300 Blackout Fired In 223

Originally Posted by veitnamcam

That 308 projectile at the bottom is amazing!
Would never have thought it could extrude so nicely into a 5.56 bore.

the legendary squeeze bore! Wounder what the BC of that would be.

But unfortunately yes 300 will fit in 223, not the other way round.

We managed to fire some 308 out of 7.26x54R, tied to a tree with a string to pull the trigger. Worked well.