The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Guns, Politics, Gunsmithing & Reloading Gunsmithing Sleeving .360 Ex , into .357 RemMagGo | New | Find | Notify | Tools | Reply | |
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| one of us |
quote: What I understand by sleeving is that you want to make an adapter to shoot 357 Mag. cartridge in your 360 i.e., an adapter made to fit into 360 chamber and with a 357 chamber built into it. I think that it could be done but you should get opinion by competent members of this board. In my opinion one issue is the bullet jump. 357 bullet will travel free some space before engaging into rifling due to short case of 357 than 360. | |||
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| <pintail> |
Dear RAO, Have you considered the possibility of rechambering for 9.3 x74R as I beleive the bore size is not disimilar and I have heard of it being done with the 360 exp ------------------ | ||
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| one of us |
Pintail, Dont you think that 9.3X74 is too hot for an old black powder rifle? It may be done for 360 NE, but I think that 360 Express is quite different from 360 NE. Rao would you please explain which 360 do you have? Saad | |||
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Moderator |
This sounds like an inexpensive project to do. Especially if I guess correctly and the machinist making them doesn't have all of the liability hassles we have here in the states. It sounds like you just need to have an adapter turned which fits in the chamber. In an older gun I would be tempted to just use cast bullets, you have nothing to gain by using jacketed bullets in this situation IMHO. Around here in the US cast bullets seem to outnumber jacketed bullets in 38 spl anyway. Regarding bullet jump, it may or may not be a problem. My opinion is that a 38 or 357 would be range limited anyway so it shouldn't be much of an issue. If it is just keep moving closer to the target! | |||
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| one of us |
9.3 is .366 so I wouldn't...I also would not play with a double or a 3 barrel rifle because you will not be able to regulate it and your going to screw up a fine old gun.. I,m not saying it can't be done, anything can be done for a price!! it's just not a feasible idea... ------------------ | |||
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| one of us |
It looks like the Krag case is about .008" too small, and the .307 case is a bit too large. I would suspect that the Krag case could be formed into these low pressure cartridges and save the original chambering to boot. These old guns are not becoming less valuable to collectors until they are Bubba-ized. It would be no great task to swage .307 bases down to .466" or whatever the chamber would accept. Building cases is cheaper than desecrating a vintage gun. First a chamber cast, then a decision about altering the gun. 2d.and I'll even discount that. Regards from smokey California, Ross | |||
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| <RAO> |
Thanks, for all those nice suggestions! But,let me explain my gun a bit. It is an english drilling,( R.B.RODAH & Co,London),chambered for, 12guageX12guageX.360Express,(all blackpowder cartridges).The rifle barrel is above 12ga side by side barrels, and regulated for .360 express-2 1/4",blackpowder cartridge,firing 190 grain bullet at around 1900fps from 28" barrel.It has three folding leaf open sights for 100,200 and 300 meters. The problem is that handloading and reloading is very strictly controled in my country and a few people have licence to handload, and they prefer shotshells. Since no cartridges for older rifles are either imported or locally produced, the only possible solution might be a chamber insert for .360Ex,chambered for .357Mag/.38Spl.Bullet diameter of all three is .357".With 158gr bullet,.357Mag will be right on sights,since velocity will be around 1900fps in 28" barrel.Bullet jump is concern and so is chamber pressure. Any suggestions are welcome. | ||
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| Moderator |
I would then take just a 357 bullet and push it through the bore to make sure you get a good seal and everything fits. Then go ahead and make up an adapter. It should be very cheap to do. However if the bore is larger than 357, Mr. Atkinson says it is .366, then you might try a 9mm Makarov round as that is about what they are. I know we are moving down the energy scale in the wrong direction but it might at least get you a workable compromise. Barrel jump really only affects accuracy, so it won't be anything unsafe (think of it as an extended freebore) and if your gun handles modern smokeless loads in the 12 guage side then there is nothing at all to worry about with either 357 or 9mm rounds. [This message has been edited by MarkWhite (edited 09-12-2001).] | |||
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| Moderator |
If the two gentlemen from Pakistan who posted in this thread still read this, I am sure that many others around the world would be interested in hearing your opinions about the recent tragedy in New York. Could you please read and comment with your opinions in the "Miscellaneous" Forum? Thank You. Mark White | |||
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| one of us |
Mark, I have posted my comments already in the hottest thread 'America under attack' in African Hunting Forum, just the next day of tragedy. However will post another message in Misc. forum.
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