Expander mandrels

[L.Sherm]

Seating force is subject to accuracy just like running different bushings for nk tension, only the target will tell.
Don't just assume 50lbs of seating force or more won't work unless you try it.

 

[Phil Rizzo]

It works fine, just don't want it to go higher than that. And trying to keep things uniformly as possible.

 

[L.Sherm]

I'm using more nk tension -seating force than I ever have and my LR guns have never shot better

 

[Phil Rizzo]

It does seem to promote uniformity. Definitely a big plus for distance shooting, reducing vertical dispersion.

 

[Barehandlineman11]

I run around 160psi with the amp. Factory lapua is 175psi I've tested from 60-250 and best is between 150-180. But i land at 160 average with my bushing/mandrel. If i change either one i jump outside that window. Thats been with few cartridges now