If you try the B & P Comp Ones you'd better have loads of extra firing pin protrusion, or they will misfire. I've got lots of guns, vintage and modern, they will not shoot reliably in. Smaller diameter heads than most other shells.
SRH
Are you talking 12ga, Stan? I've only shot them in a couple of different 28ga guns. Zero issues. A guy who likely kills more grouse than anyone I know also uses them in his 28ga and recommends them highly. I've never used them in 12ga, but appreciate the warning if that's where you've had problems.
Yes, 12 ga. Larry. Comp Ones. I've tried them in an A H Fox BE grade, a Browning BSS, an A H Fox Sterlingworth and a MX8 Perazzi. So far, the only gun that will reliably shoot them is the P gun, and that is based on just a few shells. I'm determined to find one of my vintage doubles that will shoot up these two flats I've got.
See this thread for further info on them. You'll see the problem is not limited to 12 ga. only.
http://forum.foxcollectors.com/viewtopic.php?f=15&t=7773 SRH
Thanks. I've shot probably a flat total in a couple modern 28ga sxs: Parker Repro and B. Rizzini BR 550. No issues. I picked them up initially because of the price (about $80/flat out the door). Then the grouse hunter I know chimed in on the discussion and recommended them highly. He shoots them in an OU--and those sometimes can be sensitive to issues like rim thickness because of their angled firing pins, but he hasn't had any.
I noted that the only 28ga mentioned in the link was a Model 21. Wonder whether it was original Winchester (not many of those!) or, probably more likely, a modern Galazan gun. Although in your case, your problems aren't all in vintage guns.
