Found a good load for my Savage model 12FCV. Now I just need some help on my velocity calcs. Load is a 40gr Nosler Ballistic Tip Varmint Boat Tail over 37.8gr of RL15 and a Winchester LR primer OAL 2.35". 45 degrees, 500ft elevation, 3 o'clock wind 5-8mph
When doing my workup 37.5 grains gave me 3956fps over a chronograph and 38.0 gave me 4021fps. I settled on 37.8, hoping to hit 4000fps but not give up too much accuracy. Groups started to fall apart at 38.5gr. When I run this target through Vortex's LRBC program I get a velocity of 4032fps. My drop at 305 yards(measured) was 7.12 inches the G1 BC that Nosler gives for the bullet is 0.221. I tried to shoot at 425 yards but ran out of paper and didn't want to adjust my 100yd zero till I had some hard info.
Edit: I forgot the point. Does the velocity from the software seem right? Its faster than the heavier load over the chronograph. Or is the BC by Nosler not quite right?
When doing my workup 37.5 grains gave me 3956fps over a chronograph and 38.0 gave me 4021fps. I settled on 37.8, hoping to hit 4000fps but not give up too much accuracy. Groups started to fall apart at 38.5gr. When I run this target through Vortex's LRBC program I get a velocity of 4032fps. My drop at 305 yards(measured) was 7.12 inches the G1 BC that Nosler gives for the bullet is 0.221. I tried to shoot at 425 yards but ran out of paper and didn't want to adjust my 100yd zero till I had some hard info.
Edit: I forgot the point. Does the velocity from the software seem right? Its faster than the heavier load over the chronograph. Or is the BC by Nosler not quite right?
