In my 7 MM STW, 26 " varmint taper SS barrel my 140 grn Bergers and Accubonds hit within 1/4" of each other at 200 yards.

Bergers are set just off the lands so that I don't jam them and the Accubonds are set mag length. Both are loaded over CCI mag primers and 82 grn H-1000, Bergers are MV 3300 and Accubonds are MV 3276. Both BC were taken off their respective web sites and are basically the same (.485). Peja and other ballistic tables have these trajectorys close at 300 yards. Today, Berger's grouped three shots at 1.01". Zereo for this gun is 250 yards so at 300 bullets should impact 3.7" low. Bergers were right on, but Accubonds were 8" low and 4" right????

Would seating depth make this big of difference? Again ballistics show these to be alot closure to each others at 300 yards to POI than this spread.

I guess it just goes to show you have to shoot the ranges to confirm ballistic charts.