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July 17th, 2009, 11:14 AM #1
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OK to Switch Between Lead Cast and FMJ?
I have a S&W 642 (.38 snubbie revolver) and I shoot some lead cast rounds sometimes, and then I shoot some FMJ. Is it OK to switch between the two? Should I be cleaning the barrel between switching back and forth?
Tommy610, NRA Member, Romans 12:18
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July 17th, 2009, 11:21 AM #2
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Re: OK to Switch Between Lead Cast and FMJ?
Depends on how much lead is deposited in the barrel. If you are shooting hard-cast bullets, then switching to FMJ's is no problem and may help clean minor fouling (bullet-lube, unburnt powder) from the barrel. If you are shooting soft lead bullets and there is significant fouling, you can build significant pressure and possibly a Ka-Boom. Velocity, as well as hardness, is a factor in the amount of leading.
Adios,
Pizza Bob
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