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Hunting
Long Range Hunting & Shooting
260 Rem Vs. 6.5-06
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<blockquote data-quote="wildcat westerner" data-source="post: 1453720" data-attributes="member: 21361"><p>To nitpick just a bit. With a larger case, and slightly slower burning powder you can use the larger volume to gain higher velocity. Yep, that's just applied physics.</p><p>Some subtleties come to play here, which I discovered in comparing my 6.5 x284 which is hot and performs best this way, and the 6.5 Sherman. Some powder burning rates just seem to fit some cases/bullet weight combinations better. The old classics were the .220 Swift and 4064, also the .257 AI crammed full of 4831. I selected RE22 and 23 for the Sherman. I reasoned you can really stick a lot more in the case of slower burning powder, but you gain virtually nothing but noise and recoil. I found that 61 grains gave me 3,339 fps with Hornady ELDX hunting bullets. This seemed pretty incredible to me, so I drove over to a friend with an Oehler 43 chronograph and the 5 shots averaged 3,327, 12 fps lower. admittedly some barrels are faster than others with the same load, but I am finding the combination of this Bartlein 5r, and the load mentioned, to be a superior loading in terms of flat trajectory, lessened recoil and reduced wind effects from 300 to 800 yards here at 6,556 feet in the Rockies in New Mexico where the winds' effects can be enormous, especially at longer ranges.</p><p>Wildcat westerner</p></blockquote><p></p>
[QUOTE="wildcat westerner, post: 1453720, member: 21361"] To nitpick just a bit. With a larger case, and slightly slower burning powder you can use the larger volume to gain higher velocity. Yep, that's just applied physics. Some subtleties come to play here, which I discovered in comparing my 6.5 x284 which is hot and performs best this way, and the 6.5 Sherman. Some powder burning rates just seem to fit some cases/bullet weight combinations better. The old classics were the .220 Swift and 4064, also the .257 AI crammed full of 4831. I selected RE22 and 23 for the Sherman. I reasoned you can really stick a lot more in the case of slower burning powder, but you gain virtually nothing but noise and recoil. I found that 61 grains gave me 3,339 fps with Hornady ELDX hunting bullets. This seemed pretty incredible to me, so I drove over to a friend with an Oehler 43 chronograph and the 5 shots averaged 3,327, 12 fps lower. admittedly some barrels are faster than others with the same load, but I am finding the combination of this Bartlein 5r, and the load mentioned, to be a superior loading in terms of flat trajectory, lessened recoil and reduced wind effects from 300 to 800 yards here at 6,556 feet in the Rockies in New Mexico where the winds' effects can be enormous, especially at longer ranges. Wildcat westerner [/QUOTE]
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260 Rem Vs. 6.5-06
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