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Thanks for answering my last question, but now another. It hit me today that my 301 has a 2 3/4" chamber for some reason and most barrels would be for a 3" chamber. I know it will still fit, but will it work o.k. to shoot. I just want to make sure. 8)
 

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Don't shoot a 3" shell in a 2 3/4 chamber. These are the lengths of the shell after firing. (The crimp unfolds)

If you shoot a 3" shell in the shorter chamber, the crimp will unfold in the forcing cone, and the shot and wad will have to be forced narrower to pass the smaller opening, raising pressures.

BobK
 
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