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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="Bart B" data-source="post: 1152822" data-attributes="member: 5302"><p>My guess is the 7 STW will have a barrel life of 550 rounds shooting 140's out at 4000 fps. It's bore capacity is 39 grains. 81 grains of powder produces ~ 3400 fps with 140's for about a 700 round barrel life. 90 grains might be needed to get 4000 fps but barrel life would be 500 rounds or so.</p><p></p><p>If someone has Quickload, an approximate charge weight of RL25 could be produced along with estimated pressure to get 4K fps with a 140.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1152822, member: 5302"] My guess is the 7 STW will have a barrel life of 550 rounds shooting 140's out at 4000 fps. It's bore capacity is 39 grains. 81 grains of powder produces ~ 3400 fps with 140's for about a 700 round barrel life. 90 grains might be needed to get 4000 fps but barrel life would be 500 rounds or so. If someone has Quickload, an approximate charge weight of RL25 could be produced along with estimated pressure to get 4K fps with a 140. [/QUOTE]
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Reloading
4000 fps in a 7mm STW w/140 Bullet?
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