Finally went to the range.

[national86]

Today I took out my new 6mm ARC build to do the barrel break in and used some Hornady Black and ELD Match. Once the break-in was done, I use some HSM ammo to see what I was getting for the FPS( couldn’t find it on their website).HSM 75 gn A Max was 2982fps, HSM 95gn Berger was 2601 fps and the HSM 95gn SST was 2579fps average. These numbers will probably increase once it is fully broken in.Here are the group with the  HSM with the Hornady 75gn and 95gn Bergers.

[grayfox]

You're off to a good start! What length did you settle on.
I think I shot a few 75 gr Vmax's, hand loads, from my 18 or 20" AR barrel, have to look around for the details. I'll put them up here fyi if they'll help you a bit, for comparison sake.

[national86]

It is a Mack Bros action with a 26inch Bartlein Barrel.