Admit it: you've never shot a semiautomatic rifle, have you? Never done a mag dump before?
No, it wouldn't have MELTED. I've seen a BAR (look it up) fire until the barrel was cherry red, and keep firing. Go to Knob Creek sometime if you want to learn about full auto.
***Admit it: you’ve never shot a semiautomatic rifle, have you? Never done a mag dump before? ***
I’ve been shooting semi-auto rifles since 1966. done full auto in the military.1966-1969. fired thousands of round since then.
Still got several, yet never shot so fast to git a barrel red hot.