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Rifles, Reloading, Optics, Equipment
7mm STW
My New 7 STW
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<blockquote data-quote="Engineering101" data-source="post: 935865" data-attributes="member: 63138"><p><span style="font-size: 12px">Stay away from RL-25. I've seen swings in velocity equivalent to 3 grains of powder from a 30 degree temp change. RL-17 and RL-33 use different technology and do not seem to share the temp sensitivity of the other RL powders. Hodgdon's Extreme powders are good in temp extremes and so is Magnum. </span></p><p> </p><p><span style="font-size: 12px">The bullets you mentioned except for the partition will be pretty explosive at the velocities produced by the 7mm STW. I'd look more to the tougher bullets mentioned above such as any of the Barnes TTSXs or LRXs. I've found the 168 grainers don't stabilize in my 1 in 9 twist at sea level though they might be stable at higher altitude.</span></p></blockquote><p></p>
[QUOTE="Engineering101, post: 935865, member: 63138"] [SIZE=3]Stay away from RL-25. I've seen swings in velocity equivalent to 3 grains of powder from a 30 degree temp change. RL-17 and RL-33 use different technology and do not seem to share the temp sensitivity of the other RL powders. Hodgdon's Extreme powders are good in temp extremes and so is Magnum. [/SIZE] [SIZE=3]The bullets you mentioned except for the partition will be pretty explosive at the velocities produced by the 7mm STW. I'd look more to the tougher bullets mentioned above such as any of the Barnes TTSXs or LRXs. I've found the 168 grainers don't stabilize in my 1 in 9 twist at sea level though they might be stable at higher altitude.[/SIZE] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
My New 7 STW
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