Corrected Feb 22. 2013 Thanks Eldermike for the error info.
Straightest shooting round at 500 yards (Lowest bullet drop)
1. 204 Ruger......................... -28.0 ..... Ammo - Varmint Express
2. 22-250 Remington..............-29.1 ..... Ammo - Superformance®
3. 243 Winchester..................-29.6 ..... Ammo - Superformance®
4. 7mm Weatherby Magnum......-30.7 ..... Ammo - Custom (Superformance® performed worse)
5. 300 Weatherby Magnum.......-30.7 ..... Ammo - Superformance®
6. 220 Swift ..........................-31.8 ..... Ammo - Varmint Express
7. 257 Weatherby...................-33.0 ..... Ammo - Custom
8. 270 Winchester...................-33.7 ..... Ammo - Superformance®
9. 223 Remington....................-35.6 ..... Ammo - Superformance®
10. 50 BMG............................-35.6 ..... Ammo - Match
11. 6.5 Creedmoor..................-36.9 ..... Ammo - Superformance®
12. 338 Lapua........................-37.1 ..... Ammo - Match (Superformance® performed worse)
13. 30-06 Springfield...............-38.3 ..... Ammo - Superformance®
14. 25-06 Remington...............-38.5 ..... Ammo - Superformance®
15. 308 Winchester.................-40.7 ..... Ammo - Superformance®
16. 7.62x39mm.......................-95.6 ..... Ammo - Custom (Other Brands performed worse)
Highest energy round at 500 yards
1. 50 BMG.............................12386 ft/lb
2. 338 Lapua...........................2796 ft/lb
3. 300 Weatherby Magnum.........1725 ft/lb
4. 7mm Weatherby Magnum........1695 ft/lb
5. 270 Winchester.....................1417 ft/lb
6. 30-06 Springfield...................1370 ft/lb
7. 308 Winchester.....................1287 ft/lb
8. 6.5 Creedmoor......................1211 ft/lb
9. 257 Weatherby.....................1139 ft/lb
10. 25-06 Remington...................674 ft/lb
11. 243 Winchester.....................663 ft/lb
12. 22-250 Remington..................447 ft/lb
13. 223 Remington.......................432 ft/lb
14. 220 Swift..............................406 ft/lb
15. 204 Ruger.............................405 ft/lb
16. 7.62x39mm............................350 ft/lb
(Handgun 40 S&W 180gr at 25 yards 350 ft/lb)
Winners of the straightest shooting score averaged with the most powerful energy round (lowest score wins) is as follows:
1. 7mm Weatherby Magnum.................-30.7/1695-ft/lb score ave 8
2. 300 Weatherby Magnum..................-31.2/1696-ft/lb score ave 8
3. 50 BMG........................................-35.6/12386-ft/lb score ave 11
4. 270 Winchester.............................-33.7/1417-ft/lb score ave 13
5. 243 Winchester.............................-29.6/663-ft/lb score ave 14
6. 22-250 Remington..........................-29.1/447-ft/lb score ave 14
7. 338 Lapua....................................-37.1 /2796-ft/lb score ave 14
8. 220 Swift....................................-31.8/406-ft/lb score ave 15
9. 204 Ruger....................................-28.0/405-ft/lb score ave 16
10. 257 Weatherby.............................-33.0/1139-ft/lb score ave 16
11. 6.5 Creedmoor.............................-36.9/1211-ft/lb score ave 19
12. 30-06 Springfield..........................-38.3/1370-ft/lb score ave 19
13. 223 Remington.............................-35.6/432-ft/lb score ave 22
14. 308 Winchester............................-40.7/1287-ft/lb score ave 22
15. 25-06 Remington...........................-38.5/674-ft/lb score ave 24
16. 7.62x39mm...................................-95.6/350-ft/lb score ave 32
Data collected was based on the best performing round from each caliber cartridge.
Data Ref:
http://www.hornady.com/assets/files/...Ballistics.pdf