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Long Range Hunting & Shooting
Help Which 7mm 7wsm 0r 280AI 7REm mag
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<blockquote data-quote="liltank" data-source="post: 299322" data-attributes="member: 13275"><p>The name of the powder game is getting it to completely burn up before the bullet exits the barrel. The trick is lining up the powder with the bullet weight. This provides the best accuracy and shot to shot consistency in speed. This of course is what is optimal for best performance, but isn't necessarily the way things always go. You don't want unburnt powder exiting the barrel, but you don't want it to burn to quickly either. Think of a rocket taking off and flying into space. To quick of a burn will not get it into space, but a to long of a burn might send it to Mars. It is a delicate balance. </p><p></p><p>In theory a short barrel should use faster powders to achieve this optimum potential. A longer barrel requires a slower powder to get the optimal burn. Like I said this is not always the case. You just have to try different powders. If you have taken notice, the heavier the projectile the slower the burn rate on the powders. You can compare this to powder burn rate charts found on the Lapua sight and there may be one in your reloading manual. They are all pretty consistent with one another. Just compare the powders with one another and make sure to pay attention to company brands. An IMR 4350 is not the same as a Hodgedon H4350. </p><p></p><p>I hope this helps a little.</p><p></p><p>Tank</p></blockquote><p></p>
[QUOTE="liltank, post: 299322, member: 13275"] The name of the powder game is getting it to completely burn up before the bullet exits the barrel. The trick is lining up the powder with the bullet weight. This provides the best accuracy and shot to shot consistency in speed. This of course is what is optimal for best performance, but isn't necessarily the way things always go. You don't want unburnt powder exiting the barrel, but you don't want it to burn to quickly either. Think of a rocket taking off and flying into space. To quick of a burn will not get it into space, but a to long of a burn might send it to Mars. It is a delicate balance. In theory a short barrel should use faster powders to achieve this optimum potential. A longer barrel requires a slower powder to get the optimal burn. Like I said this is not always the case. You just have to try different powders. If you have taken notice, the heavier the projectile the slower the burn rate on the powders. You can compare this to powder burn rate charts found on the Lapua sight and there may be one in your reloading manual. They are all pretty consistent with one another. Just compare the powders with one another and make sure to pay attention to company brands. An IMR 4350 is not the same as a Hodgedon H4350. I hope this helps a little. Tank [/QUOTE]
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Help Which 7mm 7wsm 0r 280AI 7REm mag
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