Glenlivet Posted March 17, 2016 Report Share Posted March 17, 2016 Bit of a thick question. What is the performance difference between a 2 1/2" 28g cartridge and a 2 3/4" 28g cartridge - apart from 1/4" Both fired from a 12g with 2 3/4" chambers. Quote Link to comment Share on other sites More sharing options...
robbiep Posted March 17, 2016 Report Share Posted March 17, 2016 Absolutely nothing. Quote Link to comment Share on other sites More sharing options...
Glenlivet Posted March 17, 2016 Author Report Share Posted March 17, 2016 Absolutely nothing. Thanks for the quick reply. Begs the question, why the current trend for longer, more material and space using carts? Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted March 17, 2016 Report Share Posted March 17, 2016 Absolutely nothing. what he said ! and some more..... the shell length was originally increased to expand shotloads. the traditional payloads loads, are gauge specific with 12gauge using 1,1/8oz loads (traditional being the most used in BlackPowder days). when the "new smokeless " powders came out the model they used was still the shot payloads of yesteryear. the new/ modern powders got developed to shoot larger payloads, (and faster that black powder !) the 2.75 having about 1,1/2oz loads as a maximum / fold crimp. the 3" was developed to shoot bigger shells such as the 50grams. mainly for the magnum american market (geese + other) the 3.5" was brought on by the demand for steel shot loads suitable for geese. there is also that extra room for big shot / bb-t or f shot. Quote Link to comment Share on other sites More sharing options...
Glenlivet Posted March 17, 2016 Author Report Share Posted March 17, 2016 (edited) Good info, thanks. So presumably it's cheaper for the manufacturer to produce a casing which can be used for several different load weights, rather than retool for various different loads. Edited March 17, 2016 by Glenlivet Quote Link to comment Share on other sites More sharing options...
wymberley Posted March 17, 2016 Report Share Posted March 17, 2016 Good info, thanks. So presumably it's cheaper for the manufacturer to produce a casing which can be used for several different load weights, rather than retool for various different loads. Yep. You could say that that is why the 2&5/8" (67/67.5mm) is now in vogue. What I can't understand is in view of many self loaders preferring 2&3/4 over the shorter lengths, why they're not as common as previously. Re your question, although any cartridge in any barrel will do exactly as it damned well pleases, it might just be found that a 2&3/4 might, just might, perhaps, pattern tighter than a 2&1/2 in the longer chamber. Quote Link to comment Share on other sites More sharing options...
Underdog Posted March 17, 2016 Report Share Posted March 17, 2016 It must be remembered that black powder is very bulky. In fact early smokeless was built bulky to be similar to black powder. Modern powders are less bulky than BP so wads have grown in length. Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted March 17, 2016 Report Share Posted March 17, 2016 It must be remembered that black powder is very bulky. In fact early smokeless was built bulky to be similar to black powder. Modern powders are less bulky than BP so wads have grown in length. this we can agree on ! Quote Link to comment Share on other sites More sharing options...
Underdog Posted March 17, 2016 Report Share Posted March 17, 2016 this we can agree on ! Woo hoo, at last lol Quote Link to comment Share on other sites More sharing options...
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