6 PRC reloading

[Treelineasassin]

Necking down in two steps with a bushing die followed by mandrel left me with 4ish thou total indicated runout.

Even if bullet is misaligned, it's going into a freebore diameter that's 001-0015 thou larger than bullet, it'll straighten things out with a bit of force fit if you would. Take one your crooked rounds, chamber it, remeasure, see if it's still same runout after.

Alex Wheeler(one the top smiths in BR world) did a test at 1k yards with a tuned 300wsm rifle that would shoot in the 2s and 3s. Precision and accuracy wasn't affected till the runout was higher than 10 thou total indicated runout.

 

[Frozenlead]

Has anyone run quickload or any consensus on 570 vs 565? I couldn't figure out how to make a 6 prc in GRT. 116tmk specifically but any of the heavies would be helpful.

Shoot me a PM with an email address and I can send you a GRT file that should work for you.