Man........I have several comp rifles. 25cm, 6gt, 6bra, 22gt, and getting a 22br built currently. Honestly the 22gt with 90atips at 3100 bucks the wind better and is flatter than the 25cm with 135s at 2900, WAY ledd recoil too. 6bra is bar far the easiest to get shooting small, I'm talking tiny. I've shot a lot of groups at 400y in the 1s and 2s. The gt and creed cases feed great from bout any setup with minimal to no tuning, br variants however require a lot of tuning on reliability for feeding, especially once you get in funk positions with pressure on magazine or the mags get dirty in elements. Want to run factory ammo? Shoot the 6 creed with Berger ammo, it hammers, especially if you throw a muzzle tuner on it. My good friend who I shoot matches with regularly, runs a dasher, also extremely accurate and dead simple to load for. Personally id go with anything alpha maked ocd brass for, that stuffs the shit.