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Rifles, Reloading, Optics, Equipment
Reloading
4000 fps in a 7mm STW w/140 Bullet?
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<blockquote data-quote="Trickymissfit" data-source="post: 774339" data-attributes="member: 25383"><p>a .257 WBY mag with a 75 grain bullet will do an honest 3900 fps at 55K psi chamber pressure. The 6Vias will do 4100 fps with a 70 grain bullet at an unknown chamber pressure (probably about 60K psi). A .300 WBY will do 3800fps with a 110 grain bullet (bet that's wild!)</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 774339, member: 25383"] a .257 WBY mag with a 75 grain bullet will do an honest 3900 fps at 55K psi chamber pressure. The 6Vias will do 4100 fps with a 70 grain bullet at an unknown chamber pressure (probably about 60K psi). A .300 WBY will do 3800fps with a 110 grain bullet (bet that's wild!) gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
4000 fps in a 7mm STW w/140 Bullet?
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