Can anyone tell me what year Ruger increased the size of the frame window to accommodate .357's with heavier than 125 grain bullets? I know the original SP101's were in .38 and were soon followed by the 125 grain only .357 model but was wondering what year the frame window was increased so the heavier .357 bullets could be fired. Many Thanks.
Best Regards,
ADP3
Best Regards,
ADP3
