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Long Range Hunting & Shooting
300 Weatherby build
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<blockquote data-quote="backwoods83" data-source="post: 795627" data-attributes="member: 29890"><p>Its likely that you found the low end node. I will tell you the load I used in the vanguard I sold, I have 2 custom 300wbys so I didn't need 3. If you try it start 6-7grns lower. The load was wby brass, 208 amax, 89.2grns H1000, 3.815" oal .120" off the lands, 2995fps with a 9-12fps ES from the factory 24" 10 twist tube, 4 loads per case, could double that but wby/norma primer pockets loosen fairly easy, but if you don't mind tightening them and annealing they could go 10 reloads being hit that hard, primer was a Fed215M btw. The wby was king back in the day, and with its design and modern powder it gives up nearly nothing to the rum and has a longer barrel life. A friend of mine that shoots 1k Ibs used to shoot a 300wby with a 28" 11 twist barrel, tight neck .110" freebore, and he used 76grns of Imr4350 with a 210M primer under a jammed 210 berger for 3070fps. What the wby lacks in powder capacity to the rum it makes up for in design efficiency. Roy was a pretty smart fellow, even more so than PO Ackley but was limited in the 40s by Imr4350 being the slowest powder available.</p></blockquote><p></p>
[QUOTE="backwoods83, post: 795627, member: 29890"] Its likely that you found the low end node. I will tell you the load I used in the vanguard I sold, I have 2 custom 300wbys so I didn't need 3. If you try it start 6-7grns lower. The load was wby brass, 208 amax, 89.2grns H1000, 3.815" oal .120" off the lands, 2995fps with a 9-12fps ES from the factory 24" 10 twist tube, 4 loads per case, could double that but wby/norma primer pockets loosen fairly easy, but if you don't mind tightening them and annealing they could go 10 reloads being hit that hard, primer was a Fed215M btw. The wby was king back in the day, and with its design and modern powder it gives up nearly nothing to the rum and has a longer barrel life. A friend of mine that shoots 1k Ibs used to shoot a 300wby with a 28" 11 twist barrel, tight neck .110" freebore, and he used 76grns of Imr4350 with a 210M primer under a jammed 210 berger for 3070fps. What the wby lacks in powder capacity to the rum it makes up for in design efficiency. Roy was a pretty smart fellow, even more so than PO Ackley but was limited in the 40s by Imr4350 being the slowest powder available. [/QUOTE]
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