Me and a co worker were talking the other day about how nice and handy the m1 carbines were and how the down fall in his mind was the low power ctg. It used . Now I am aware of some of the conversions done with it like the 22 Johnson spitfire and some were done on the 45 mag , Anyone know if others that were done and worked well ? Then I got looking at my cartridges of the world book for ammo that would fit that envelope , I seen there's a 35 SL which is the same oal case length as the 30 carbine . It's just a rimless 357 mag . Sooooo I started thinking same length ,body dia not that much bigger ,pressures are close the 357 is like 6k cup more for max. And Heck who wouldn't t like a 13-14 shot 357 magnum in a 5 1/2 lb semiauto rifle!!!! I'd buy one . Only issue is have to pay big money to get star line or someone to make rimless 357 mag brass or lots of lathe time to make your own . Besides that issue anyone see a reason why you couldn't open up the bolt face slightly ream the chamber and bore out the barrel to .357 ?
Tim