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The Range
Rimfire Weapons
22 Mag or 17HMR?
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<blockquote data-quote="dennishoddy" data-source="post: 2580976" data-attributes="member: 5412"><p>Interesting info from Chuck Hawks.</p><p></p><p>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):</p><p>•.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.</p><p>•.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.</p><p>•.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.</p><p>•.22 WMR, 40 grain JHP = ME 324 ft. lbs., 230 ft. lbs. at 50 yards, 162 ft. lbs. at 100 yards.</p><p></p><p>Here we see a different story. The .22 WMR starts with about a 75 ft. lb. advantage in kinetic energy at the muzzle. At 50 yards the 40 grain .22 bullet is carrying about 45 more ft. lbs., and at 100 yards the 40 grain .22 bullet still has a 25 ft. lb. advantage over the .17 bullets. At 150 yards the .17 HMR has an energy advantage of about 20 ft. lbs. over the 30 grain .22 bullet, and we have no figures for the 40 grain bullet beyond 100 yards.</p><p></p><p>What we can conclude from this is that the 40 grain .22 WMR load is the most powerful cartridge out to at least 100 yards, and beyond that adequate data is lacking. I would guess that the 40 grain .22 WMR bullet retains its energy advantage out to at least its maximum point blank range of about 125 yards.</p><p></p><p>Note that the energy of the 30 grain .22 bullet falls behind the 40 grain .22 bullet by 50 yards, and behind both .17 HMR loads by 100 yards. Also note that there is no practical difference in energy between the 17 and 20 grain .17 HMR bullets at any range.</p><p></p><p><a href="http://www.chuckhawks.com/compared_17HMR_22WMR.htm" target="_blank">http://www.chuckhawks.com/compared_17HMR_22WMR.htm</a></p></blockquote><p></p>
[QUOTE="dennishoddy, post: 2580976, member: 5412"] Interesting info from Chuck Hawks. 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. Here we see a different story. The .22 WMR starts with about a 75 ft. lb. advantage in kinetic energy at the muzzle. At 50 yards the 40 grain .22 bullet is carrying about 45 more ft. lbs., and at 100 yards the 40 grain .22 bullet still has a 25 ft. lb. advantage over the .17 bullets. At 150 yards the .17 HMR has an energy advantage of about 20 ft. lbs. over the 30 grain .22 bullet, and we have no figures for the 40 grain bullet beyond 100 yards. What we can conclude from this is that the 40 grain .22 WMR load is the most powerful cartridge out to at least 100 yards, and beyond that adequate data is lacking. I would guess that the 40 grain .22 WMR bullet retains its energy advantage out to at least its maximum point blank range of about 125 yards. Note that the energy of the 30 grain .22 bullet falls behind the 40 grain .22 bullet by 50 yards, and behind both .17 HMR loads by 100 yards. Also note that there is no practical difference in energy between the 17 and 20 grain .17 HMR bullets at any range. [url]http://www.chuckhawks.com/compared_17HMR_22WMR.htm[/url] [/QUOTE]
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