I won't use that stuff again.
twice now using the .308 fmj in an m305 with measured .308 headspace I've had bullets lodge in the lands and the powder burn a hole right thru the bullet send shrapnel into the target at 50 yards making me think it fired properly. pulled trigger, bang no click..... hmmmm
looked at bolt, not closed all the way.... yikes good think the norinco receiver's safety features where working....slowly tried to ease the round in with a tap on the oprod and nope, still stopping out of battery...... hmmmm, eject and inspect shows visible damage to fmj tip.... WTF?
so I run a cleaning rod down the bore and out pops the bullet, melted right thru from base to tip and uneven land/groove marks 1/2 way along outside.
still have one of the bullets somewhere... after the second time it happened, I don't use that ammo