Thing is, EACH rifle acts slightly differently with each brand of Match ammo.
The ONLY way to figure out what yours likes the best, is buy a couple boxes of each brand and shoot 'em.
Record EVERYTHING in your Shot Journal...if you don't have one, get a spiral notebook & make one.
You will basically be playing Sniper...use their (Army/Marine) tactical knowledge for best results.
I'm not just Trigger Happy, I'm Trigger Ecstatic!!