This year in MN I actually saw a hunter using an M1 Carbine. He had Remington ammunition to comply with the DNR requisite that the ammo be of the expanding bullet variety. Before anyone states the obvious, I agree, there are so much better choices in firearm and cartridge, I include this because the fellow had a problem. He was getting intermittent primer strikes. Turns out he had never throughly cleaned the rifle. I always enjoyed the carbines in the 1960s and 1970s when they were cheap and plentiful. Now, I would just hang it on the wall and think of it as a piece of history. Anyway, to keep a carbine in fine field fettle, it must be thoroughly cleaned. When doing this, the operating return spring must be cleaned and inspected along with its housing and spring guide rod. Attention to this part of the mechanism will prevent 90% or more of the problems seen with carbines. For those interested, here is a good reference site.
http://www.geocities.com/buckrodgrs/M1/TB_23-7-1/Cover.html
