Mike525steel Posted November 19, 2011 Report Share Posted November 19, 2011 (edited) Ive been shooting 21grram fibre carts in my 3" magnum chambered browning. 525 recently. Do you think the patterns will be poor due to the length of the chamber compared to the length of the cart???? As they are only a 65 mm cart Please advise guys it's just a thought that popped into my head after reading an article on blown out patterns with short carts surrounding the recent roaring emma story . may explain a few unbroken clays of late?..... Look forward to your replys. Edited November 19, 2011 by Mike525steel Quote Link to comment Share on other sites More sharing options...
EdSolomons Posted November 19, 2011 Report Share Posted November 19, 2011 If your using fibre it might give you slightly more patchy patterns but unless they are a fair way off (45 yard +) it won't cost you anything. Quote Link to comment Share on other sites More sharing options...
Mike525steel Posted November 19, 2011 Author Report Share Posted November 19, 2011 If your using fibre it might give you slightly more patchy patterns but unless they are a fair way off (45 yard +) it won't cost you anything. Puts my mind at rest as I've just picked another 500 up cheers Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted November 21, 2011 Report Share Posted November 21, 2011 those carts are fine, blown pattens can occur from many causes, such as pressure, speed, choke, lead hardness, lead roundness, wad charicteristics. to name but a few. unless you are an extreme shooter or want above and beyond performance, shooting normal shell would make sense. the shells you have are good as. alex Quote Link to comment Share on other sites More sharing options...
Catweazle Posted November 21, 2011 Report Share Posted November 21, 2011 I pattern tested 65mm Supreme Game fibre in my 3.5" chamber Beretta, and the patterns were great. I imagined that there would be gas blowing past the wad but if it is happening it's not having any effect on the pattern. I do wonder if it might be the cause of the stubborn fouling I get just in front of the forcing cone, possibly hot gases getting past the overpowder card and melting some of the wad. Quote Link to comment Share on other sites More sharing options...
dougall Posted November 21, 2011 Report Share Posted November 21, 2011 no Quote Link to comment Share on other sites More sharing options...
Chris Bb Posted November 23, 2011 Report Share Posted November 23, 2011 I'm not a gunsmith but! The space between the end of the cartridge and the end of the chamber is less than 1/2 inch. The powder is still igniting and the wad/load accelerating. Once past the end of the chamber the wad/load has 28 - 32 inches of barrel in which to fully accelerate and form its pattern, all the while the powder is still burning/expanding. My guess is that the cartridge length will, to all intents and purposes, make no difference whatsoever. I do, however, stand to be corrected. Quote Link to comment Share on other sites More sharing options...
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