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Hunting
Extreme Long Range Hunting & Shooting (ELR)
Tipped match bullet length question.
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<blockquote data-quote="RockyMtnMT" data-source="post: 1431626" data-attributes="member: 7999"><p>After all the impact testing that we did with our bullets we came to the conclusion that 1.5sg at sea level should be the min for hunting. It is easy to talk yourself into the bigger bullets when you plug in higher elev than sea level because it increases the sg. Problem is it doesn't increase the rpm's of the bullet. It is the rpm's and how fast they degrade on impact that dictate how long the bullet stays on a straight line path with the nose oriented forward after impact. The longer the nose of the bullet stays correctly orientated the better the bullet will deform correctly. This holds true for all hunting bullets. They need hydraulic pressure to enter the nose and deform the bullet from the inside out. The moment the bullet tips or yaws then the tip of the bullet will no longer let fluid into the hp. This is how we see the pics of recovered bullets that show the bent nose and little other deformation. I used to think this was a bullet failure. I am now more apt to blame a lack of stability not the bullet.</p><p></p><p>Another point on this. The smaller the hollow point the more this problem will show up. The smaller the hole the harder it is to get fluid in the hole. Any bit of yaw in the bullet makes the hole smaller due to the angle. </p><p></p><p>Tipped bullets are still hollow points, just with a plug in the hole. With the tip they have larger hollow points but the tip has to get out of the way allow the fluids into the hole. Tips have been advertised as helping expansion, I can't see how this is possible unless the tip is of harder material than the rest of the bullet. Tips do a great job of increasing bc on an otherwise large hollow point bullet.</p><p></p><p>Lots of choices and things to think about. Keep the sg high and terminal performance with whatever bullet chosen will be better.</p><p></p><p>Steve</p></blockquote><p></p>
[QUOTE="RockyMtnMT, post: 1431626, member: 7999"] After all the impact testing that we did with our bullets we came to the conclusion that 1.5sg at sea level should be the min for hunting. It is easy to talk yourself into the bigger bullets when you plug in higher elev than sea level because it increases the sg. Problem is it doesn't increase the rpm's of the bullet. It is the rpm's and how fast they degrade on impact that dictate how long the bullet stays on a straight line path with the nose oriented forward after impact. The longer the nose of the bullet stays correctly orientated the better the bullet will deform correctly. This holds true for all hunting bullets. They need hydraulic pressure to enter the nose and deform the bullet from the inside out. The moment the bullet tips or yaws then the tip of the bullet will no longer let fluid into the hp. This is how we see the pics of recovered bullets that show the bent nose and little other deformation. I used to think this was a bullet failure. I am now more apt to blame a lack of stability not the bullet. Another point on this. The smaller the hollow point the more this problem will show up. The smaller the hole the harder it is to get fluid in the hole. Any bit of yaw in the bullet makes the hole smaller due to the angle. Tipped bullets are still hollow points, just with a plug in the hole. With the tip they have larger hollow points but the tip has to get out of the way allow the fluids into the hole. Tips have been advertised as helping expansion, I can't see how this is possible unless the tip is of harder material than the rest of the bullet. Tips do a great job of increasing bc on an otherwise large hollow point bullet. Lots of choices and things to think about. Keep the sg high and terminal performance with whatever bullet chosen will be better. Steve [/QUOTE]
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Tipped match bullet length question.
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