wymberley Posted May 6, 2017 Report Share Posted May 6, 2017 (edited) hello, the only answer is to measure the internal chamber, a 2/1/2 inch is slightly under 64mm but there must be an allowance for the crimp.my first old english 12 bore was 2.5 inch then the eley grand prix was the cartridge used Isn't a 2&1/2" closed RTO cartridge longer than a closed crimped version, but when both open measure the same - 2&1/2"? Edit: Did we have CIP 100 years ago? Edited May 6, 2017 by wymberley Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted May 6, 2017 Report Share Posted May 6, 2017 hello, in that case georges 67mm cartridge would be a further 2mm. 69mm Nope you are talking nonsense. A guns chamber that is 65mm is actually 67mm. The cip set a statement that the 65mm chamber can still fire 67mm hulls. The shells that are marked 65mm and 67mm are the total hull length opened up. Not only that they have near Identical pressure specs,. Quote Link to comment Share on other sites More sharing options...
rbrowning2 Posted May 6, 2017 Report Share Posted May 6, 2017 (edited) The U.K became a member of CIP in June 1980 if that has any bearing on the argument, sorry discussion. Edited May 6, 2017 by rbrowning2 Quote Link to comment Share on other sites More sharing options...
oldypigeonpopper Posted May 6, 2017 Report Share Posted May 6, 2017 Nope you are talking nonsense. A guns chamber that is 65mm is actually 67mm. The cip set a statement that the 65mm chamber can still fire 67mm hulls. The shells that are marked 65mm and 67mm are the total hull length opened up. Not only that they have near Identical pressure specs,. hello, parden me for talking nonsence but i did say a 2 1/2 inch chamber must have an allowance for the crimp, it was 50 years ago i had an english S/S and a cartridge measurement would not be something i would have any thought, the gunsmith i purchased my cartridges from as i mentioned before just said these are ok in your gun, Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted May 6, 2017 Report Share Posted May 6, 2017 hello, parden me for talking nonsence but i did say a 2 1/2 inch chamber must have an allowance for the crimp, it was 50 years ago i had an english S/S and a cartridge measurement would not be something i would have any thought, the gunsmith i purchased my cartridges from as i mentioned before just said these are ok in your gun, The nonsense I was talking about is your assumption that George's 67mm hulls are 69mm. Infact most 70mm shells are 69mm. That's the open length. It's guessing that I can't stand, when the info and specifications are in print. And available in the net from the gov body. Gunsmiths are not governing body. Although should be educated. The statistics and specs change regular. Take saami specs. Changed in 2016. Quote Link to comment Share on other sites More sharing options...
panoma1 Posted May 6, 2017 Report Share Posted May 6, 2017 Nope you are talking nonsense. A guns chamber that is 65mm is actually 67mm. The cip set a statement that the 65mm chamber can still fire 67mm hulls. The shells that are marked 65mm and 67mm are the total hull length opened up. Not only that they have near Identical pressure specs,. Different cartridges have different characteristics, I have used several brands of 65mm game cartridges over the years, without issue, I tried 67mm x 30g x 6shot fibre wad shells once, when I was short of my usual 65mm in my light English SBS, the blast hurt my ears and the recoil was at best unpleasant, I would not use them again!..........whatever the advice, I will stick with the soft shooting 65mm x 1 1/16oz or 1 1/8oz x 6 or 7 shot, game cartridges.......if the 67mm shells I tried rattled my fillings? What was it doing to my "best quality" game gun? Quote Link to comment Share on other sites More sharing options...
dipper Posted May 6, 2017 Report Share Posted May 6, 2017 Nope you are talking nonsense. A guns chamber that is 65mm is actually 67mm. The cip set a statement that the 65mm chamber can still fire 67mm hulls. The shells that are marked 65mm and 67mm are the total hull length opened up. Not only that they have near Identical pressure specs,. Way back when Grand Prix were paper crimp closure the cases were70mm.stated on the box for 2 1/2chambers Impax had a 65mm case .I know of one person were he had to use 65 mm cartridges apparently his gun had very short chamber cones .He could not use 67mm cartridges .I use 70mm case reloads in a 21/2 inch gun with no problem.Dipper. Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted May 6, 2017 Report Share Posted May 6, 2017 Different cartridges have different characteristics, I have used several brands of 65mm game cartridges over the years, without issue, I tried 67mm x 30g x 6shot fibre wad shells once, when I was short of my usual 65mm in my light English SBS, the blast hurt my ears and the recoil was at best unpleasant, I would not use them again!..........whatever the advice, I will stick with the soft shooting 65mm x 1 1/16oz or 1 1/8oz x 6 or 7 shot, game cartridges.......if the 67mm shells I tried rattled my fillings? What was it doing to my "best quality" game gun?Shell length has very little association with characteristics. Most game looads now are 1400fps. Not like the shells of old. I can make shells soft and hard by changing powders. It would have done nothing to your gun as 67mm is as good as.If you are concerned you can have them measured. Quote Link to comment Share on other sites More sharing options...
figgy Posted May 6, 2017 Report Share Posted May 6, 2017 So is there any money in it ? Quote Link to comment Share on other sites More sharing options...
matone Posted May 7, 2017 Report Share Posted May 7, 2017 The nonsense I was talking about is your assumption that George's 67mm hulls are 69mm. Infact most 70mm shells are 69mm. That's the open length. It's guessing that I can't stand, when the info and specifications are in print. And available in the net from the gov body. Gunsmiths are not governing body. Although should be educated. The statistics and specs change regular. Take saami specs. Changed in 2016. Well said ! Quote Link to comment Share on other sites More sharing options...
propercartridges Posted May 7, 2017 Report Share Posted May 7, 2017 will make a thread about this as this has got nowt to do with making money from carts cheers george Quote Link to comment Share on other sites More sharing options...
Whitebridges Posted May 7, 2017 Author Report Share Posted May 7, 2017 will make a thread about this as this has got nowt to do with making money from carts cheers george My OP George was posted concerning completely different subject matter from your interests. Yes it's turned in to something completely "off topic" but you shouldn't be so bloody rude! Good evening and not that it matters one jot but I'll never buy any of your products. Quote Link to comment Share on other sites More sharing options...
oldypigeonpopper Posted May 7, 2017 Report Share Posted May 7, 2017 hello, i think a lot of posts got off topic a bit but thats the nature of everyones opinion on shooting and the likes of brexit etc, as for george he is only trying to guage opinions on types of cartridges that might be purchased so he can decide if it is worth the trouble of setting up a loading machine for as mentioned a 67mm shell, from his prices i wish his factory was down this way as i am all for buying from a hard working man who puts shooter first and can still make a reasonable profit Quote Link to comment Share on other sites More sharing options...
Whitebridges Posted May 7, 2017 Author Report Share Posted May 7, 2017 hello, i think a lot of posts got off topic a bit but thats the nature of everyones opinion on shooting and the likes of brexit etc, as for george he is only trying to guage opinions on types of cartridges that might be purchased so he can decide if it is worth the trouble of setting up a loading machine for as mentioned a 67mm shell, from his prices i wish his factory was down this way as i am all for buying from a hard working man who puts shooter first and can still make a reasonable profit Hello OPP. I respect your point of view. George seems to use this forum as a market research tool with little respect for his competitors or their clients. He his also notorious for derailing threads. Quote Link to comment Share on other sites More sharing options...
motty Posted May 7, 2017 Report Share Posted May 7, 2017 Don't be silly! George doesn't put shooters first. His bank balance comes first. I will never buy his cartridges, either. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.