January 31, 2008, 07:07 PM
I am just wondering if someone could point me to a website that has case dimension for cartridges.... trying to see if I can modify an M1 carbine to another caliber, and am trying to figure out if I need to machine a new bolt or if the current one can be used.
For what it is worth, trying to see if I can modify it to shoot the 5.7 FN round... only doing on CAD now, so I don't just ruin a good gun....
January 31, 2008, 07:24 PM
Try this for 5.7X28mm. Post #20 has accurate metric measurement of the case. The inch drawings should be taken with a bunch of salt.
The carbine should be all over the web.:)
February 1, 2008, 12:48 AM
thanks got the info I needed.... going to see if I can get a prototype working on AutoCad.... if that proves well... it should be fun to build :)
February 1, 2008, 08:55 AM
Here is one of the best lists of current cartridge drawing with deminsions.
February 1, 2008, 11:45 AM
There is always the 5.7 Johnson Spitfire.
Better ballistics then the 5.7x28mm.
February 1, 2008, 01:41 PM
aghhh. Note to self. Read more carefully next time
February 2, 2008, 04:18 PM
The 5.7 Johnson Spitfire was designed for the 30 carbine - using the same case of course. I can't figure out why that cartridge is so low on the popularity stakes. It is slightly more powerful than the k-hornet, the same size as the hornet for all intents and purposes, a stronger case than the hornet and plenty of brass to form cases from. Not that I have a problem with the hornet - my favourite cartridge!