Norinco 9mm

unspellable · 01-18-2010, 01:02 PM

There are two different ways to break a Luger with too hot a load, too much impulse or too much pressure. Pressure wise the action is quite strong so the usual way of damaging it is with too much impulse. Sieger's breech block slapping is an indication of too much impulse.

I have seen a breech block with the lower front edge blown off, a case of too much pressure. I have no idea what the load was, for all I know it was a compressed load of Bullseye. (I did see a S&W Model 10 that was blown open with a known case full of Bullseye.)

When adjusting a hand load look for the correct bullet weight and velocity combination. If that's right you're unlikely to be too high on pressure unless it's some weird off the wall load.

01-18-2010, 01:02 PM	#37
unspellable User Join Date: Jun 2002 Location: Iowa Posts: 768 Thanks: 0 Thanked 19 Times in 11 Posts	There are two different ways to break a Luger with too hot a load, too much impulse or too much pressure. Pressure wise the action is quite strong so the usual way of damaging it is with too much impulse. Sieger's breech block slapping is an indication of too much impulse. I have seen a breech block with the lower front edge blown off, a case of too much pressure. I have no idea what the load was, for all I know it was a compressed load of Bullseye. (I did see a S&W Model 10 that was blown open with a known case full of Bullseye.) When adjusting a hand load look for the correct bullet weight and velocity combination. If that's right you're unlikely to be too high on pressure unless it's some weird off the wall load.