That's why I like the forster case trimmers. They have a hp tool for them consisting of a 1/16" bit for rifles and a 1/8" bit for pistols. I like to use a 9/32" *60 center point drill myself for short bbl'd hp's in revolvers. Did these for a 2 1/2" bbl'd 44spl.


You might want to do a little testing with your 3" bbl/loads into wet newspaper or water jugs to get an idea of how bad the advise was that was given to you. A 1100fps+ 158gr bullet out of a 3" bbl'd 357 is no joke. I've done a little testing with 3" bbl'd 357's. The s&w l-comp 586 I own/use.