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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Boss setting inquiry, 150s in a .300 win mag model 70 supergrade. Anyone done this?
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<blockquote data-quote="Short Round" data-source="post: 2000814" data-attributes="member: 20795"><p>Glad to share my thoughts and theories.</p><p></p><p>If I used the Browning chart and looked at it, the 150 and 180 are 7 away from each other, dialing downward and coming back through ten. But I hardly know if that is accurate in the other barrel length. The Browning guide also throws in the variables of different numbers for different common brand loads. The winchester chart shows 180 at 0.2 and 200 at 2.8.</p><p></p><p>Somewhere I saw an optimal barrel length chart that were supposedly better for certain cartridges. Basically different lengths where the bullets should be exiting when the muzzle was near the centerline of the harmonic whip.</p><p></p><p></p><p>Great theories, but you still have to prove it on paper as my gunsmith Dennis would say.</p></blockquote><p></p>
[QUOTE="Short Round, post: 2000814, member: 20795"] Glad to share my thoughts and theories. If I used the Browning chart and looked at it, the 150 and 180 are 7 away from each other, dialing downward and coming back through ten. But I hardly know if that is accurate in the other barrel length. The Browning guide also throws in the variables of different numbers for different common brand loads. The winchester chart shows 180 at 0.2 and 200 at 2.8. Somewhere I saw an optimal barrel length chart that were supposedly better for certain cartridges. Basically different lengths where the bullets should be exiting when the muzzle was near the centerline of the harmonic whip. Great theories, but you still have to prove it on paper as my gunsmith Dennis would say. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Boss setting inquiry, 150s in a .300 win mag model 70 supergrade. Anyone done this?
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