Luger Heavy Barrel Not Cycling

unspellable · 02-09-2013, 01:02 PM

First, be sure you're not limp wristing.

Winchester 30 Luger is under loaded and will not make the advertized velocity.

The Wolfe springs I've seen don't look anything like a Luger spring.

The 7.65 spring is different than the 9 mm spring. But cutting a 9 mm spring is NOT the way to go.

The action is operated by recoil which is determined by the load impulse. Pressure is not even considered in the calculation and has no bearing. The pressure should drop to zero before the action begins to unlock and has nothing to do with extraction.

The recoil spring MUST reliably close the action. The disconnector will allow the Luger to FIRE with the action not fully locked. That can get ugly. The recoil spring must be strong enough for reliable closing with the over weight barrel.

All this may lead to a hand load that is hotter than current factory offerings to get adequate slide velocity.

The action will take higher pressure than a SAAMI spec load with out turning a hair. The real danger in too hot a load is too much impulse leading to too high a slide velocity and cracking the toggle or abusing the linkage.

02-09-2013, 01:02 PM	#15
unspellable User Join Date: Jun 2002 Location: Iowa Posts: 769 Thanks: 0 Thanked 19 Times in 11 Posts	First, be sure you're not limp wristing. Winchester 30 Luger is under loaded and will not make the advertized velocity. The Wolfe springs I've seen don't look anything like a Luger spring. The 7.65 spring is different than the 9 mm spring. But cutting a 9 mm spring is NOT the way to go. The action is operated by recoil which is determined by the load impulse. Pressure is not even considered in the calculation and has no bearing. The pressure should drop to zero before the action begins to unlock and has nothing to do with extraction. The recoil spring MUST reliably close the action. The disconnector will allow the Luger to FIRE with the action not fully locked. That can get ugly. The recoil spring must be strong enough for reliable closing with the over weight barrel. All this may lead to a hand load that is hotter than current factory offerings to get adequate slide velocity. The action will take higher pressure than a SAAMI spec load with out turning a hair. The real danger in too hot a load is too much impulse leading to too high a slide velocity and cracking the toggle or abusing the linkage.