StrangeRanger Posted March 3, 2021 Report Share Posted March 3, 2021 Not particularly germane to US martial shotguns but... It seems that not all shotshells are created equal. I just picked up some NobelsportItalia 12 ga. buckshot rounds. I already had several other brands in my stash. All are nominally 2-3/4”/70mm which is the chamber length necessary to accommodate the fired hull, not the length of an unfired round The unfired PMCs are the shortest at 2.22” AOLThe Remingtons are 2.30” as are some Kent birdshot loads.The Winchesters are only slightly longer at 2.31The Nobels are a whopping 2.48” All the brands other than Nobel use the familiar star crimp; the Nobels use a plastic “card” over the shot charge and a short roll crimp. It appears that the fired hulls will be very close to the same length as the other brands. None of this means much until I load my 11-87P. It has an 18-1/2” barrel with a barrel length mag tube. The tube will hold 7 of the PMCs but just misses being able to take a 7th Remington or Winchester. With the Nobels the limit is also 6 but with very little unused tube length. So if you have a shotgun that comes close to accepting one more round, it may be worth looking at some off brands to see if they are sufficiently enough shorter fit in that extra Link to comment Share on other sites More sharing options...
TSMGguy Posted March 3, 2021 Report Share Posted March 3, 2021 Right, different manufacturers produce products to different designs and standards, though the caliber or gauge might be the same. Link to comment Share on other sites More sharing options...
BillyDixon Posted March 10, 2021 Report Share Posted March 10, 2021 if just a short space left could you fit in one of those mexican made real short 12 ga shells ? just wondering Link to comment Share on other sites More sharing options...
StrangeRanger Posted March 10, 2021 Author Report Share Posted March 10, 2021 I don't trust those things to feed 100% of the time, nor do they have the knock-down power of a 2-3/4" load. Both are obvious concerns in a home defense shotgun Link to comment Share on other sites More sharing options...
Petroleum 1 Posted March 10, 2021 Report Share Posted March 10, 2021 The only shotgun the mini shells work reliably for me is in my Mossberg 500 with the plastic adaptor installed. Link to comment Share on other sites More sharing options...
Roland the Thompsongunner Posted March 24, 2021 Report Share Posted March 24, 2021 The short shells feed well in my Ithaca 37. I think it would have enough stopping power for in home defense. I fired it at a car hood at about 20 feet and it was a pretty nasty set of holes Link to comment Share on other sites More sharing options...
Petroleum 1 Posted March 25, 2021 Report Share Posted March 25, 2021 (edited) The short shells feed well in my Ithaca 37. I think it would have enough stopping power for in home defense. I fired it at a car hood at about 20 feet and it was a pretty nasty set of holesI need to try them in my 1300...tried them and they run great in my 1300!! Edited March 28, 2021 by Petroleum 1 Link to comment Share on other sites More sharing options...
Baltimoreed11754 Posted April 3, 2021 Report Share Posted April 3, 2021 Check the length of your mag tube spring. Might be longer than is needed and can be shortened. Also the follower might be long and bottoming out instead of the spring bottoming out. I’ve increased the capacity of my ‘97s and Marlin cas shotguns by messing with the springs and followers. I also build 2 inch shells that give me 7 rds instead of 6 and work nicely in my Marlin but you do have to tilt the gun a bit to help feeding them in the M12 and ‘97. Link to comment Share on other sites More sharing options...
StrangeRanger Posted April 3, 2021 Author Report Share Posted April 3, 2021 I'm bottoming out on the Wilson follower notthe spring. I could trim it but there's no need. I have an almost full case of the PMC which is my SHTF load. Everything else is for practice Link to comment Share on other sites More sharing options...
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