Great info, but I have to ask since the price of ammo is up there and no time to reload. Does .38 and .38+p with the weight and fps below the 357 standards of the k-frame (model 19-4) kill the gun. I know if 38's are shot all the time it can make 357's hard to seat if not cleaned well after shooting 38's. I have a 14-1 that has 1000's of 38's down the tube but it look and feels like new.
So to put the urban legend to rest can 38's & 38+p be shoot all day from a 357 k frame without damage to the forcing cone and top strap or increase end-shake??? Would shooting a cylinder of light 357's every so often kill the gun?? How does the barrel length affect any of the above?
I appreciate the input I've read and heard several different things about the above over the years it's hard to decide what to do other than leave the k frame 357 in the safe so that it doesn't die prematurely.