700,
It's really splitting hairs but, using your bullet and speed I come up with something a bit different.
175gr SMK at .505 BC at 2700 fps.
Where you get:
100 Yard press. adjust. for 7000ft alt. = +0.28MOA
At 100yds I get .02" less drop at 7000ft ASL(2.49" total drop to 2.47"), not +.28". From a BP of 29.53in HG to a BP of 22.75in HG or a BC that goes from .505 to .6565.
A +.28" POI seems out of place, doesn't it?
At 0 ft. ASL and at 100yds I get .01" more drop from a temp change of 59deg F to 34deg f, or a BC that goes from .505 to .4792
A combined change from 0 ft./ 59deg F/ 29.53in HG to 7000 ft./ 34deg F/ 22.75in HG resulted in a drop from:
100yds = 2.49" to 2.47".
1000yds = 411.09" to 362.64"
A change of .1174 BC (.505 BC to .6224 BC)
A drop of 25deg alone at 0 ft. ASL results in a change of drop from;
100yds = 2.49" to 2.50"
1000yds = 411.09" to 423.30
a change of .0258 in BC. (.505 BC to .4792 BC)
At 7000 ft. ASL the same temp drop results in a change of drop from;
100yds = 2.47" to 2.47"
1000yds = 355.21" to 362.64"
a change of .0341 in BC. (.6565 BC to .6224 BC)
At 0 ft. ASL and 59deg F. a change in BP from 29.53 to 22.75 would result in a change of drop from;
100yds = 2.49" to 2.47"
1000yds = 411.09" to 364.63"
a change of .1169 BC (.505 BC to .6219 BC)
At 0 ft. ASL and 34deg F. a change in BP from 29.53 to 22.57 would result in a change of drop from;
100yds = 2.50" to 2.48"
1000yds = 423.30" to 371.02"
a change of .1159 BC (.4792 BC to .5951 BC)
Food for thought.
The real ****er is these drags are based on a G1 drag curve, not the G5 which better models this bullets form, a custom drag model with the 175 SMK's exact form as the basis would be even better.
[ 10-20-2003: Message edited by: Brent ]