Took the T7 out today to try with the lighter Remington umc 150gr. Not bad. The FGGM & PPU MATCH 168's produced 1.5" groups @100yds. The 150's about 1" groups @100yd. That 1/12 twist definitely seems to like the lighter stuff best, but both are acceptable. Once the shortage and prices come down, I'm going to have to get me some quantity of 147 to 150 grain quality ammo.