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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Having problems with getting consistant velocity
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<blockquote data-quote="Darryl Cassel" data-source="post: 21432" data-attributes="member: 34"><p>Hello TXHunter</p><p></p><p>Using WC872? I use that powder in all my LR hunting rifles and it works fine.</p><p></p><p>Is it hot there where your testing the loads. Wc 872 is a heat sinsative ball powder whereas it will throw flyers as the chamber heat builds. This is more common when the temperature is hot outside.</p><p></p><p>An age old saying to remember here is;</p><p>High velocity will kill accuracy in almost every caliber.</p><p>Try loading down a bit to reduce the velocity by 200 FPS to start and then work back up a half gain at a time till the groups tighten up. Stop there and you will have reached the accuray potential of that load. Try other powders also. How about bullet seating depth? Work with that also. Some guns shoot with the bullet in the lands some shoot better .050" off the lands.</p><p></p><p>Check your brass as far as wall thickness and weight. Seperate them in lots or match brass. Use the brass from one lot for your testing to get the best results. </p><p></p><p>I think the problem is excessive velocity and a bit of a powder reduction may just do the trick. Of course Remington brass leaves a lot to be desired too, if that's what your using.</p><p></p><p>You would be surprised the lower velocities for 1000 yard match shooting most of the fellows use at Williamsport. At least 100 to 200 FPS lower then what the case will support in most instances.</p><p></p><p>Good luck</p><p>DC</p></blockquote><p></p>
[QUOTE="Darryl Cassel, post: 21432, member: 34"] Hello TXHunter Using WC872? I use that powder in all my LR hunting rifles and it works fine. Is it hot there where your testing the loads. Wc 872 is a heat sinsative ball powder whereas it will throw flyers as the chamber heat builds. This is more common when the temperature is hot outside. An age old saying to remember here is; High velocity will kill accuracy in almost every caliber. Try loading down a bit to reduce the velocity by 200 FPS to start and then work back up a half gain at a time till the groups tighten up. Stop there and you will have reached the accuray potential of that load. Try other powders also. How about bullet seating depth? Work with that also. Some guns shoot with the bullet in the lands some shoot better .050" off the lands. Check your brass as far as wall thickness and weight. Seperate them in lots or match brass. Use the brass from one lot for your testing to get the best results. I think the problem is excessive velocity and a bit of a powder reduction may just do the trick. Of course Remington brass leaves a lot to be desired too, if that's what your using. You would be surprised the lower velocities for 1000 yard match shooting most of the fellows use at Williamsport. At least 100 to 200 FPS lower then what the case will support in most instances. Good luck DC [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Having problems with getting consistant velocity
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