tackstrp
tackstrp
5 posts
Joined January 2009

accu-crimp - what is

The description on Dillion dies is accu-crimp for revolvers and taper crimp for auto. What is a accu-crimp? new term for me.
dillon
Administrator
dillon
2,820 posts
Joined July 2007

RE: accu-crimp - what is

 The accu-crimp is a two-stage crimp die. It starts with a taper crimp, which is sufficient for lighter loads. If a firmer crimp is needed, adjust the die down further. This applies a roll crimp on top of the taper crimp, giving a firm grip on the projectile.
billPTC
billPTC
1 post
Joined December 2017

RE: accu-crimp - what is

My new custom build “cowboy action shoot” rifle calls for roll crimp for the 45LC round, they recommend Lee Factory roll crimp. How does this differ from you crimp??