ballistics 101 a heavy projectile will, can, and does carry better down range and bucks the wind better than a light bullet. I shoot long range regularly 1 22-250 1-8 twist and have witnessed kills on crows out to 600yds, and most resent a gray squrile at 700yds. I can almost promise you that those 55's would not and most likely can not maintain a stable path past 400yds. I also assist farmers with land depervation problems with deer and was able to place a single 69smk into the base of its skull at 437yds, also witnessed by 3 others.So if you are wanting to go long range you will need to go with a fast twist and heavier bullet with a good bc.
"SEMPER FI" MAC
