Need Reamer Input...284 Norma brass/183 Sierra's

[CoverDog]

Opinions wanted...Straight 284 Win. Norma brass/Sierra 183's Brux 32" straight 8.5T

What Neck and FB. Will turn brass if that will get the best results.

 

[bsumoba]

I was using a 0.300" freebore for the Sierra 183s, which was the same for the berger 195s essentially. Neckwise with the Norma brass, if you want a no-turn I think you need to be around 0.319-0.320". With Lapua brass, I use a 0.317" neck.