I got the 3-die set from Hornady, and I realized after reading the instructions that the seater die applies a roll crimp, and that Hornady also sells a 4th taper crimp die separately. I recall the Lyman reloading manual stating that it is a good idea to taper crimp straight wall cases, so I emailed Hornady to pose the question to them. They responded to say that their seater die will apply enough crimp to "iron out" the bell from the expander die, and that they strongly recommend using a taper crimp die for consistent chambering in the 40S&W. OK, well if they recommend this, then why don't they just sell a 4-die set instead?
Do any of you using the Hornady 3-die sets find it necessary to apply a taper crimp as well? What's the best taper crimp die for 40S&W?
Reloading for a Sig 226 and 239, if that matters. Thank you.
Do any of you using the Hornady 3-die sets find it necessary to apply a taper crimp as well? What's the best taper crimp die for 40S&W?
Reloading for a Sig 226 and 239, if that matters. Thank you.