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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
? 260 vs 260AI vs 6.5-.284 w/27.5" barrel; velocity gains?
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<blockquote data-quote="milanuk" data-source="post: 34027" data-attributes="member: 376"><p>Hmmm... what's this Wyatt extended box you mention? What's the cost to have one installed thru Jim (He's done most of the work on my 6.5-08 XTC match rifle)? On second thought, it wouldn't do me much good. 700SA is my limitation -&gt; 2.750" for rapid fire strings to ensure getting them into the gun in the first place.</p><p></p><p>As far as velocities... dunno about the others, but I've heard .260/6.5-08 speeds all over the place for 140 class bullets, from 2600+ to high 2800, some almost 2900fps. Depends some on barrel length, powder choice, brass (internal volume), etc. Most people are pretty happy w/ 2700-2750 out of a 6.5-08, sometimes abit more, mostly using 26-28" barrels and thick heavy brass like Lapua. At least one fellow I know that shoots down at RattleSnake swears by a 142gr SMK over 50.5gr H-1000 in a Winchester case (has to work at it to get it to fit in there!) producing (he claims) 2854fps. Seeing as how he set a range record w/ it at Rattlesnake... I'd say maybe he's got something.</p><p></p><p>No experience w/ the others. I kind of stuck w/ the 6.5-08 for the same reason most people in HP do... does most everything pretty well w/o being too much (barrel life). For hunting, I don't know if I'd change my choice much.</p><p></p><p>Good luck, and let us know what you end up going with!</p><p></p><p>Monte</p></blockquote><p></p>
[QUOTE="milanuk, post: 34027, member: 376"] Hmmm... what's this Wyatt extended box you mention? What's the cost to have one installed thru Jim (He's done most of the work on my 6.5-08 XTC match rifle)? On second thought, it wouldn't do me much good. 700SA is my limitation -> 2.750" for rapid fire strings to ensure getting them into the gun in the first place. As far as velocities... dunno about the others, but I've heard .260/6.5-08 speeds all over the place for 140 class bullets, from 2600+ to high 2800, some almost 2900fps. Depends some on barrel length, powder choice, brass (internal volume), etc. Most people are pretty happy w/ 2700-2750 out of a 6.5-08, sometimes abit more, mostly using 26-28" barrels and thick heavy brass like Lapua. At least one fellow I know that shoots down at RattleSnake swears by a 142gr SMK over 50.5gr H-1000 in a Winchester case (has to work at it to get it to fit in there!) producing (he claims) 2854fps. Seeing as how he set a range record w/ it at Rattlesnake... I'd say maybe he's got something. No experience w/ the others. I kind of stuck w/ the 6.5-08 for the same reason most people in HP do... does most everything pretty well w/o being too much (barrel life). For hunting, I don't know if I'd change my choice much. Good luck, and let us know what you end up going with! Monte [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
? 260 vs 260AI vs 6.5-.284 w/27.5" barrel; velocity gains?
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