[JRandomFreeper]

How can a 3D printer make a functional pistol or rifle barrel that could withstand the pressures when a round is chambered? It can't

Actually BSR, it can. And did.

/johnny

[Bloody Sam Roberts]

it can. And did.

I am dubious. If a 5.56 round is fired from a full on steel barrel made for .223 rounds will fail. Eventually or straight away.

How can a barrel made from polymers on a 3D printer withstand those kind of pressures? My head don't bend enough to get wrapped around that kinda thing.