I know most here will think this rifle and scope is on the low end ,but my current budget is lower then I would like these days. I recently bought a CMMG .308 custom rifle with a 1 in 10 twist 18 inch fluted Wasp treated barrel and mounted a Weaver tactical FFP EDMR 3-15x50 scope on it . I have had very good groups (5 shot groups best .59 to .76 moa)with 168 grain Frdral Gold Medal match smk ammo at 100 yards .I have been told 175 grain is better for a 1-10 barrel and also that the 175 grain is better at longer distance. I was thrilled with my groups so far but wonder if ther is an advantage to going to the 175 over the 168. I was thinking about trying the South west amunition with the AMax in 168 or 175 . I would like to find one weight bullet and stick with it. I also was thinking about hand loading ( I have access to the reloading equptment ,and handload 10mm pistol ammo a lot),but the cost is only .17 a round less. any gas gun shooters have any imput on what works best in a 1-10 gas gun ?