It is not so easy to modify a M1 Carbine from .30 carbine into the caliber .357 Magnum. I made a second barrel because I calculated
the head space wrong by the first barrel. There are still some problems by extracting and ejecting the empty shell. My apple i-phone shows in slow motion that the back travel of the bolt would be far enough - so the extractor and ejector need some modifications - sorry also this time it don't work!
