tinkerfive Posted January 17, 2006 Report Share Posted January 17, 2006 Guys, Emmu I was moving around some ammo when I pulled out an old box of 30-40 Krag and I thought it looked an awful lot like the 7.62X54R. If you have a .308 barrel laying around to rebarrel with I thought this might be an option. Only of course if the classic round appeals to you. I don't want to hear about how many 'fps' you are giving up. I'm just offering this as another idea. The Krag base is .545 and the MN rim is .580. I was looking for opinions if .0175 extra clearance would be an issue with the Krag sitting in the MN bolt face. I realize that you may need to fiddle with the extractor hook to get it to extract. What I wanted to know was if you'd need to fill in (silver solder) the bolt face to take up the extra clearance or if it was a non issue. Tinker Link to comment Share on other sites More sharing options...
roscoedoh Posted January 17, 2006 Report Share Posted January 17, 2006 C, I think it would work. And I think it would be worth a shot. A 30-40 Krag MN carbine would make one heck of a deer rifle! With regard to the bolt face issue, I'd say just try it without the spacer first and then if need be soft solder the appropriate sized spacer in. I don't think silver solder would be needed. And if you do need a spacer made up, and you can't make it on that lathe of yours, I'm sure that talented in-house ME you know could make on up in a jiffy! It sounds like an interesting project. If you decide to make a run at it, perhaps I could have a look next time I'm up? I can't wait to see what you come up with. If you need any pictures posted, let me know. Take care, Jason Link to comment Share on other sites More sharing options...
gunnutty Posted January 17, 2006 Report Share Posted January 17, 2006 The rounds are both .30 caliber. The 7.62 X 54R holds a little more powder (maybe?) an the MN is built around this cartridge. With the 7.62, no action alteration would be required, and feeding is flawless. I think the idea advanced in another thread about chambering the 7.62 X 54R with a .308 barrel is a better idea. Better selection of bullets, and a new-condition modern bore. If you just had to have a different cartridge, I'd recommend the .303 British over the 30/40, just for better available components (brass). The two cases are nearly identical, with the 30/40 having a slightly longer neck. You might even be able to get a "pull" .311 barrel (Mauser or Enfield) on the cheap. Link to comment Share on other sites More sharing options...
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