Hi jeff Michel, where did you get a 140 gr. sledge hammer bullet. so far the heaviest i've found for sale is the 115 gr. from Meisters. but I did just get the new wolf trigger spring and 10 lb.s hammer spring into my sp101(.327 Federal mag.) 4 inch barrel. I'll try mine Friday. the "kit" came with a 12 lb. hammer spring also. some people seem to like the 12 lb spring better than the 10 lb. one.
Pat