RE: dan wesson 357 mag
Cyl. is definetly chambered for 38 spl.[357 mag shell works for no gogauge]. Also did some measuring[tough to dowith out taking chamber casting]. Min. chamber length for 38 spl is 1.105 in., Min. chamber length for 357 is 1.240 in. I set my caliper depth gauge at 1.240, entering from the rim side of cyl., looking through cyl. from front in bright sunlight, I could see gauge was fair amount past forcing cone in cyl. Rear of chamber measures .381 in. I know somebody has done some parts swapping, I was just trying to figure out what came first. The chicken or the egg? [Im guessing the bbl. was swapped.... much easier to change than cyl.] Thanks.