I have a rem700 in 260ai, Kreiger 1:8 30” 4 grove, shooting Hornady brass, Berger 140gr hybrids with H4350. I shot a ladder test at 340yards starting with #1 at 41.6grs of powder and worked up to 46gr. Bullets 1-5 confused me a little and 4 was no where to be found but pieces so not sure if it...