Rossi Rifleman

I never thought about it that much , but good grief that's a whole lot of pressure!!!


Do the math: if a .454 Casull has a SAAMI specified maximum pressure of 65,000 psi, the proof loads must generate roughly 92,000 psi of revolver destroying pressure. Each and every Ruger revolver is fed a cylinder full of proof loads as part of the inspection/testing process, before the revolver is cleaned and boxed up for retail.

Read more: http://dailycaller.com/2015/09/29/10-th ... z4WsDtFjpI

The testing of the M1 Garand when it was being designed is quite interesting to read.
Due to the problems with the 1903 Springfield caused by improper heat treatment, the use of 'bullet lube' where the tip of the loaded bullet was dipped in lube prior to being inserted into the chamber and some problems with experiments with tinned plated bullets which welded themselves to the brass cartridge cases John Garand decided to run the normal proof load to even higher pressure. He then decided to continue increasing the pressure until there was an actual crack in the bolt at that point standard pressure was fired in the weapon with no expansion of the crack over the course of a lot of rounds.

Somewhat overbuilt.

Archer wrote:M1 Garand ......
Somewhat overbuilt.

All you have to do is pick one up to know that.

"Oh, my aching back!"