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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30-378 Weatherby
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<blockquote data-quote="J E Custom" data-source="post: 1488848" data-attributes="member: 2736"><p>Depending on the length of your barrel, H 5010 used to be my favorite powder. with it being discontinued i had to go to H 50 BMG. Have yet to try Vit N 570 but it works great in my 30 Texan. I use 200 grain bullets and get over 3300 ft/sec without pressure signs.</p><p></p><p>Something in the neighborhood of 117 grains gave great accuracy (.092</p><p>5 shot 100 yards and .897 at 300 yards).</p><p></p><p>With the SAMMI freebore of the 30-378 there is more powder capacity</p><p>than can be used, and with more slow burning powder, all that is gained is muzzle flash.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1488848, member: 2736"] Depending on the length of your barrel, H 5010 used to be my favorite powder. with it being discontinued i had to go to H 50 BMG. Have yet to try Vit N 570 but it works great in my 30 Texan. I use 200 grain bullets and get over 3300 ft/sec without pressure signs. Something in the neighborhood of 117 grains gave great accuracy (.092 5 shot 100 yards and .897 at 300 yards). With the SAMMI freebore of the 30-378 there is more powder capacity than can be used, and with more slow burning powder, all that is gained is muzzle flash. J E CUSTOM [/QUOTE]
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30-378 Weatherby
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