Originally Posted by
Open Range
How does a .505BC 155Scenar at 3000fps,lose this race?
By not participating?
What is a 7-08 anyhow?
It's a pretty popular cartridge around here... 7mm-08 Remington is derived by necking down a .308 Win. to .284 cal. (Similar to the way that the .243 and .260 were developed.)
Here's a chart of the ballistics for the three deer rifles I use:
Cartridge Information
Cartridge Type Weight (grs.) Bullet Style Ballistic Coefficient
Remington® Express® 100 PSP CL 0.356
Remington® Express® 140 PSP CL 0.390
Winchester Super-X 150 Power Point 0.270
Velocity (ft/sec)
Cartridge Muzzle 100 200 300 400 500
.243 2960 2697 2449 2215 1993 1786
7mm-08 2860 2625 2402 2189 1988 1798
30-06 2920 2580 2265 1972 1704 1466
Energy (ft-lbs)
Cartridge Muzzle 100 200 300 400 500
.243 1945 1615 1332 1089 882 708
7mm-08 2542 2142 1793 1490 1228 1005
30-06 2839 2217 1708 1295 967 716
Short-Range Trajectory
Cartridge 50 100 150 200 250 300
.243 0.1 0.7 zero -2.0 -5.4 -10.4
7mm-08 0.2 0.7 zero -2.1 -5.7 -11.0
30-06 0.6 1.0 zero -2.4 -6.6 -12.7
Long-Range Trajectory
Cartridge 100 150 200 250 300 400 500
.243 1.6 1.5 zero -2.9 -7.5 -22.1 -45.4
7mm-08 1.8 1.6 zero -3.1 -7.8 -22.9 -46.8
30-06 2.2 1.8 zero -3.5 -9.0 -27.0 -57.1
Edit.... Man, I had those all spaced really nice and neat, and the formatting of the forum apparently ignores spaces. Suffice it to say that the 7mm-08 has 1793 ft lbs of energy at 200 yards and 1490 ft lbs of energy at 300 yards, whereas the .30-06 has 1708 and 1295, respectively. And, sighted in for a 200 yard zero, the 7mm-08 drops 46.8 inches at 500 yards, whereas the .30-06 drops 57.1.