PUBLIC Forums => Research Proposals => Topic started by: Kim Haag on October 15, 2012, 09:51:03 AM

Title: Possible Research Project
Post by: Kim Haag on October 15, 2012, 09:51:03 AM

 Possible research project: What can an examiner looking at a pristine
22 caliber 40 grain R6 bullet WITHOUT any slippage marks say about what possible type of gun fired it.
Years ago I read (where???) that a bullet has to "jump" from the cylinder to the revolver's barrel, leaving slippage marks. Versus a bullet that is nearly touching the rifling in a semiautomatic pistol.
The project would entail gathering a host of 22 LR firearms (revolvers, semiautos, derringers), recovering test bullets and determining if this concept has any basis.
 
 
This project was submitted by Evan Thompson.  Thank you Evan!!

Title: Re: Possible Research Project
Post by: winterh on December 07, 2012, 09:38:03 AM

Some years back,Remington manufactured a .22 caliber smoothbore designed to fire .22 cal shot cartridges. This can also be done by removing the barrel from a revolver and firing through the frame....HW