6mm ARC - "Optimum 6mm" & Powders & Lapua Brass

[skyrep]

6mm AR  -  Really a great post.  Thanks.  I've been using the Powders you have mentioned above and they have worked great for me.  I'm shooting the 22" Unitah Precision Bolt Action Upper in an AR-15 Lower.  My results have giving me .5 MOA with low SDs and I'm very happy with the velocities i'm getting (105-108gr at 2750FPS).  I'm now trying the Sierra 95gr TMK.  However, i'm trying to figure out the COALs for them.  I am using the Lapua brass (converted from Grendel).