Originally Posted by Longarch
Originally Posted by richardca99
Originally Posted by Longarch
JasonB,

Did you notice any improvement in accuracy after using the crimp die?


I've used the crimp die extensively. I've not noticed an increase in accuracy, but I've definitely not noticed a DECREASE in accuracy, and I like having the security of the crimp. I use them with any bullets that have cannelures.

I don't, however, crimp non-cannelured bullets like Lee suggests that you can. I just can't get over the notion of adding a groove into the bullet with my crimp.


Richardca99,

Ever thought about comparing the accuracy of a crimped reload to a non-crimped? ....fishing....


I have. In fact, I have experimented with with their crimp die when I've been building loads that are "on the edge" of what a rifle might be able to function well with. An example has been the 64 Winchester PowerPoint in a 223 with a factory 12 twist barrel. I have been able to significantly tighten groups with their crimp die. There are other instances as well, but that load - with RL15 or 4320 really stand out.

Sometimes, the air you 'let in'matters less than the air you 'let out'.