WinchesterDave Posted January 19, 2012 Report Share Posted January 19, 2012 Is there any difference between a 3" & a 3" magnum cartridge ? Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted January 20, 2012 Report Share Posted January 20, 2012 no, both 3" and your3" magnum are subject to the cip classification and must conform to pressure limits. there is no such thing as magnum or supermagnum. there are just 3" and 3.5" cartridges. same also applies to minimagnums, which are just 2,3/4" Quote Link to comment Share on other sites More sharing options...
WinchesterDave Posted January 20, 2012 Author Report Share Posted January 20, 2012 So a 3" cartridge is a "magnum" ? Quote Link to comment Share on other sites More sharing options...
M.I.A Posted January 20, 2012 Report Share Posted January 20, 2012 3" is what is refered to as a magnum and 3 1/2" is refered to as supermagnum Quote Link to comment Share on other sites More sharing options...
WinchesterDave Posted January 20, 2012 Author Report Share Posted January 20, 2012 3" is what is refered to as a magnum and 3 1/2" is refered to as supermagnum Thank you! That is really helpful, much appreciated Quote Link to comment Share on other sites More sharing options...
UK fowler Posted January 20, 2012 Report Share Posted January 20, 2012 Is there any difference between a 3" & a 3" magnum cartridge ? I think you will find 23/4" 12g shells come in standard (around 720bar) and 23/4"mag at 900 bar most 42gram lead loads are above 720bar Quote Link to comment Share on other sites More sharing options...
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