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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30-378 Weatherby
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<blockquote data-quote="yobuck" data-source="post: 1491951" data-attributes="member: 12443"><p>This is the answer for the 30x378. Long barrels and slow powder. 40 years ago they were the most sought after among PA long rangers, but good actions prevented them from being so. I used one on a Howard Wolfe custom action for over 25 years.</p><p>He wouldn't build one with less than a 36" barrel, and unless you used the powder he recommended.</p><p>He did also start building them on lapped Mark Vs.</p><p>WW2 surplus H570 was the best powder, with 112 gr showing about 3500 fps with a 200 gr SMK. 118 gr of H870 would do the same, as would WC872.</p><p>With that velocity, the 200 gr shoots flatter out to 1500 yds than the heavier ones. But frankly with todays choices of cartridges, I don't see much point to the 30x378.</p></blockquote><p></p>
[QUOTE="yobuck, post: 1491951, member: 12443"] This is the answer for the 30x378. Long barrels and slow powder. 40 years ago they were the most sought after among PA long rangers, but good actions prevented them from being so. I used one on a Howard Wolfe custom action for over 25 years. He wouldn't build one with less than a 36" barrel, and unless you used the powder he recommended. He did also start building them on lapped Mark Vs. WW2 surplus H570 was the best powder, with 112 gr showing about 3500 fps with a 200 gr SMK. 118 gr of H870 would do the same, as would WC872. With that velocity, the 200 gr shoots flatter out to 1500 yds than the heavier ones. But frankly with todays choices of cartridges, I don't see much point to the 30x378. [/QUOTE]
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30-378 Weatherby
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