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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Slow Barrel???
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<blockquote data-quote="Dano1" data-source="post: 277578" data-attributes="member: 14209"><p>It's not the Chrony, I fired a known load over it with my .30-06 AI and it was right on. </p><p> </p><p>It also was consistant from shot to shot with each rifle. Variation was maybe 25fps max.</p><p>It's just that the 7mm Sendero was shooting very slow. According to the book, I should be getting 2900-3000 FPS with this load, Sierra says I should be shooting 63.2g of H4831 to achieve 3000FPS. </p><p> </p><p>I'll re-test it when I get another chance, but I'm still wondering why so slow.</p><p> </p><p>I used to shoot Moly bullets, but I stripped the bbl and cleaned out the moly. It still holds copper. I've never been able to get it all out of this bbl. I also bought this rifle used several years ago and I frankly don't know it's past history. There could certainly be something there.</p><p> </p><p>I'm leaning toward using it as a builder for another cartridge. I've been interested in a .300 Win Mag for a while. Might be time to build one of those.</p><p> </p><p>Dan</p></blockquote><p></p>
[QUOTE="Dano1, post: 277578, member: 14209"] It's not the Chrony, I fired a known load over it with my .30-06 AI and it was right on. It also was consistant from shot to shot with each rifle. Variation was maybe 25fps max. It's just that the 7mm Sendero was shooting very slow. According to the book, I should be getting 2900-3000 FPS with this load, Sierra says I should be shooting 63.2g of H4831 to achieve 3000FPS. I'll re-test it when I get another chance, but I'm still wondering why so slow. I used to shoot Moly bullets, but I stripped the bbl and cleaned out the moly. It still holds copper. I've never been able to get it all out of this bbl. I also bought this rifle used several years ago and I frankly don't know it's past history. There could certainly be something there. I'm leaning toward using it as a builder for another cartridge. I've been interested in a .300 Win Mag for a while. Might be time to build one of those. Dan [/QUOTE]
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Slow Barrel???
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