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Fur Loads
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<blockquote data-quote="bounty hunter 2" data-source="post: 1102360" data-attributes="member: 90711"><p>I have made such hits using the 70gn Coynamite bullets fired from the 223 Rem cartridge and the result was a single 22 cal hole in the hide and what felt and sounded like a bag of jello when the carcass was picked up.</p><p>I wanted a bit more velocity from these bullets so built a 22/250 Ackley with a 1/9" twist 27" barrel. What I learned from this project is that these bullets with very thin jacket and un alloyed lead core and from a 1/9" twist barrel are limited to about 3000 fps and still maintain good accuracy. By good accuracy I mean on average I get about .75 moa. These are not match bullets but soft point hunting bullets. </p><p>Beyond 3000 fps they apparently cant handle the torque and accuracy is non existent. I suspect with a faster twist max velocity will be something less than 3000 fps.</p><p>Limiting there use to chamberings not larger than the 223 Rem is probably a good idea unless you can be satisfied with staying well below your chamberings ability.</p><p>My 22/250 Ackley gets 3450 fps with this bullet design so to use this bullet in it I have to back off about 450 fps from its potential.</p></blockquote><p></p>
[QUOTE="bounty hunter 2, post: 1102360, member: 90711"] I have made such hits using the 70gn Coynamite bullets fired from the 223 Rem cartridge and the result was a single 22 cal hole in the hide and what felt and sounded like a bag of jello when the carcass was picked up. I wanted a bit more velocity from these bullets so built a 22/250 Ackley with a 1/9" twist 27" barrel. What I learned from this project is that these bullets with very thin jacket and un alloyed lead core and from a 1/9" twist barrel are limited to about 3000 fps and still maintain good accuracy. By good accuracy I mean on average I get about .75 moa. These are not match bullets but soft point hunting bullets. Beyond 3000 fps they apparently cant handle the torque and accuracy is non existent. I suspect with a faster twist max velocity will be something less than 3000 fps. Limiting there use to chamberings not larger than the 223 Rem is probably a good idea unless you can be satisfied with staying well below your chamberings ability. My 22/250 Ackley gets 3450 fps with this bullet design so to use this bullet in it I have to back off about 450 fps from its potential. [/QUOTE]
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