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Old October 24, 2010, 08:53 AM   #9
Rampant_Colt
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Join Date: March 17, 2006
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Posts: 1,478
Quote:
Originally Posted by amateur2010
As far as the marks on the shell casings of the .45 WCC and TZZ, would the breechface impressions on the casings be any different if one was a FMJ? My understanding is that the impressions vary on the pressure exerted on the bullet itself as it leaves the chamber-is there anything about a FMJ that would make the breechface impression different?

And do any of you know an expert who would be willing to email me privately about these questions?

I am an attorney preparing for trial.
There's no way to tell the type of bullet used based on breechface impressions. Generally premium ammunition will have a laquer-sealed primer and nickel-plated casings.

Are you trying to determine if the casings in question were "hot" handloads?

Every handgun has its own unique breech imprintâ–¬Glocks have a rather distinctive breechface marking
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