Reaction of Luger barrel to torque of firing?

LugerVern · 09-26-2010, 12:05 AM

There are some other forces taking place we are not considering.
As a cartridge is fired pressure increases forcing the brass case to expand and seal against the breach, the bullet then slams into the rifling, I think it is at this instant that the reverse force is being applied. Once the rifling breaks in this force will be reduced considerably. Basically I wonder if the smoothness of the forcing cone on a new barrel is the determining factor of barrel back out and then only at the extreme earlyness of barrel life?

Good Post Rich!!

Vern

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09-26-2010, 12:05 AM	#3
LugerVern User Join Date: Apr 2005 Location: Virginia Posts: 563 Thanks: 1 Thanked 34 Times in 27 Posts	There are some other forces taking place we are not considering. As a cartridge is fired pressure increases forcing the brass case to expand and seal against the breach, the bullet then slams into the rifling, I think it is at this instant that the reverse force is being applied. Once the rifling breaks in this force will be reduced considerably. Basically I wonder if the smoothness of the forcing cone on a new barrel is the determining factor of barrel back out and then only at the extreme earlyness of barrel life? Good Post Rich!! Vern