bheadboy said:
a big problem using 38sp brass in 357 pistol
the shorter case causes the bullet to have to jump to the throat of the cylinder thus there is a possible pressure drop and second there is the problem of bullet not being held as completely by the case so it may enter the throat minutely off, a lead or brass build up results and the pressure when you shoot 357 as the case then encounters the build up.
always use 357 brass for 357 chambers, if you load reduced loads ( easily done) for simulation of 38 recoil, etc. then just do one of two things, use different make of brass, different bullets, or even cast for one of the two.
you can also use a "sharpe" to mark the base of the case to indicate 38. I don't own a 38 but load a ton of 2.8 bull with wadcutters to simulate 38 and 2.7gr and shoot them in my 357m pistols.
Bob
I've been shooting 357 magnum and 38 special revolvers since the late 60's had have literally shot and reloaded thousands of rounds for each and I have never encountered any difficulty at all in shooting 38 special reloads (38 cases) out a 357 magnum revolvers i.e. S&W Model 19's, Model 27's, Models 586, 686's.
I've shot all manner of bullets, hollow base swaged wadcutters, cast bullets, jacketed bullets and I never encountered the problems stated above.
This has never been a "big problem" for me either in terms of accuracy or performance.