ar10ar15man
Well-Known Member
i currently shoot a 300 win mag at 3.6xx with a berger 230 at 2900 fps at 2000 yards. it stays super sonic past 2k. it is super sonic starting at 2800 fps past 2k
if i substitute a hornady 220 even at 2900 it is SUB sonic before2k
with a 220 cutting edge (NOT OUT YET) i get the same answer..SUB sonic before 2000.
10 grains of weight, even with a bit more velocity the 220s go sun sonic before 2k.
the cutting edge is 1.8 long solid copper
what am i missing
if i substitute a hornady 220 even at 2900 it is SUB sonic before2k
with a 220 cutting edge (NOT OUT YET) i get the same answer..SUB sonic before 2000.
10 grains of weight, even with a bit more velocity the 220s go sun sonic before 2k.
the cutting edge is 1.8 long solid copper
what am i missing