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Old June 23, 2013, 08:30 PM   #38
feets
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Join Date: April 28, 2008
Posts: 560
Keep in mind that different metals fatigue in different ways and at different rates.
Brass will work harden and fail with time. If the case walls are a bit thin where the ramp meets the chamber you will probably see them rupture before they fail. They survived multiple uses so far and will probably not bulge over the ramp.
The steel for the barrel is likely to develop microscopic fissures that will survive unnoticed for a long time. Then, one random day, a standard 45 ACP load will rip the chamber open.

Unless there is a serious overpressure problem it's rare to see one or two rounds pop a gun. What you find is that the damage accumulates over a period of time.

I would be far more tempted to try something like this in a revolver than a bottom feeder.

Have you inspected the frame and slide for signs of battering? Check all contact surfaces. The high strength barrel will probably be the last thing that fails. Check the rest of the gun around it.

I remember someone going down this road back when the 460 S&W came out. He was battering an X frame with his version of load development. Others referred to it as building a hand grenade. That guy's version of safety was to stand behind a tree and pull a string tied to the trigger. If the gun didn't blow up, he'd fire the rest by hand.
We're talking compressed charges of H110 under 250 gr XTPs. That's well over 50 grain of powder. Velocities were disturbing.

In the end the gun did not pop but it was badly battered and very loose. It's now one of those "cheap" used X frames that will explode on some poor buyer down the road.
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