Mickster

jhgtyre Several years ago I picked up some of the USA mags at a gun show. They are an oddball mix of a steel AR upper spot welded to a steel AK lower. The 30 rounder doesn't function well with more than 25 rounds in it and even so isn't 100%. A couple of the 20 rounders would spout out a couple of rounds at a time while shooting but work perfectly now that I tweaked the lips a bit. The other 20 rounders worked fine out of the wrapper. USA doesn't have any but they still turn up at shows. Next are some steel 20 rounders that look identical to .223 30 rounders except for the follower, lip width and the body's are flat sided, not ribbed like a .223. I got some from Tapco and some from Cheaper Than Dirt and these work perfectly. You can get 23 rounds in these. Currently, the only source I know of for 762x39 AR mags is Cabellas. I just called them and they have some in stock for $19.99 each. They have the 20 rounders which I believe are the same manufacturer as what Tapco and CTD have/had. Do you think this idea of 762x39 major is out of the question? I don't know much about gunpowders but some of the new ones get good velocities at low pressures and that seems like the place to start. Anybody got any ideas?

I have a Colt 16" 762x39 that makes a very handy little deer and hog gun here in the swamps of Florida. I've shot it in a couple of 3-guns also and really enjoy shooting it, even though it shoots minor with more recoil than a .223. I have some 20 and 30 round mags that work very well and I have some that don't work too well. Ya pays your money and takes your chances with these as they are all aftermarket and some of dubious quality. I would be very interested in any research and experimentation data on the 762x39 that anyone has done for making major. I remember at one time that the 38 super was considered unsafe for major, but IPSC shooters are an inventive bunch and made it work. And you can always hope USPSA will lower the major/minor power factors a little bit for rifles, at least so the .223 will always make minor with factory ammo. Anybody got any input on the idea of a major 762x39?