05-26-2020, 04:22 PM
In my experience of hand loading for 40 years, in general flat base bullets shoot more accurate inside 300 yards than boat tailed bullets. Or at least they are easier to get to shoot better. Some barrels just shoot anything and others are picky. I have two AR Grendel's with different make barrels and neither would shoot the Hornady 123 SST either in factory or ANY handload, of which I tried a good number, consistently under 1 1/2", Both will shoot 120 Speer Gold Dot or Sierra Pro Hunter sub MOA all day long. I picked up some Speer 90 TNT bullets to hand load but have not had the time to fool with them yet.