The other day I stretched out to 539 yds with my 6.5X47L 130 JLK load and was not impressed. Through the chrono at 100 yds showed 2877 average with a es 6, d 3 shootin around .3 5 shot group. Well at 539 showed me a 3" group with 4 rounds out of 5 being vertical giving me the 3". I also took my...