her er noe jeg bladde på nett: Velocity
Here are the velocity numbers in feet-per-second at the muzzle, 50 yards, 100 yards, 150 yards (when available), and 200 yards (when available):
.17 HMR, 17 grain V-Max = MV 2550 fps, 2380 fps at 50 yards, 1900 fps at 100 yards, 1620 fps at 150 yards, 1378 fps at 200 yards.
.17 HMR, 20 grain XTP = MV 2375 fps, 2051 fps at 50 yards, 1754 fps at 100 yards, 1492 at 150 yards, 1273 fps at 200 yards.
.22 WMR, 30 grain TNT = MV 2200 fps, 1720 fps at 50 yards, 1340 fps at 100 yards, 1080 fps at 150 yards.
.22 WMR, 40 grain JHP = MV 1910 fps, 1610 fps at 50 yards, 1350 fps at 100 yards.
From these numbers it becomes clear just how much faster the .17 HMR really is. At 100 yards the difference amounts to 550 fps between the highest velocity loads for each caliber! Clearly, the .17 HMR is the undisputed speed king.
Energy
Velocity is an important factor in calculating kinetic energy, but so is bullet weight. We have already seen that the .17 HMR is by far the faster cartridge, but the .22 WMR shoots a far heavier bullet. Energy is important because it powers bullet expansion and penetration, and is a major factor in killing power.
Here is the energy of our comparison loads, in foot-pounds at the muzzle, 50 yards, 100 yards, 150 yards (when available), and 200 yards (when available):
.17 HMR, 17 grain V-Max = ME 245 ft. lbs., 185 ft. lbs. at 50 yards, 136 ft. lbs. at 100 yards, 99 ft. lbs. at 150 yards, 72 ft. lbs. at 200 yards.
.17 HMR, 20 grain XTP = ME 250 ft. lbs., 187 ft. lbs. at 50 yards, 137 ft. lbs. at 100 yards, 99 ft. lbs. at 150 yards, 72 ft. lbs. at 200 yards.
.22 WMR, 30 grain TNT = ME 325 ft. lbs., 200 ft. lbs. at 50 yards, 120 ft. lbs. at 100 yards, 80 ft. lbs. at 150 yards.
.22 WMR, 40 grain JHP = ME 324 ft. lbs., 230 ft. lbs. at 50 yards, 162 ft. lbs. at 100 yards.
22WMR har mere anslags energi opp til 100 Yards men så detter det raskt, 17 HMR har mere energi en 22WMR etter 100 yards