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Rifles, Reloading, Optics, Equipment
Reloading
300 win mag
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<blockquote data-quote="Bart B" data-source="post: 687069" data-attributes="member: 5302"><p>When the .300 Win Mag was popular in high power rifle long range matches, Sierra HPMK's of 190 and 200 grains were favorites. Seated in new (or proper full length sized) cases with IMR4350, charge weights in order were 71 and 70 grains as I remember. Standard primers gave better accuracy than magnum ones. 1:12 twists were favored in the 28 to 30 inch barrels used.</p></blockquote><p></p>
[QUOTE="Bart B, post: 687069, member: 5302"] When the .300 Win Mag was popular in high power rifle long range matches, Sierra HPMK's of 190 and 200 grains were favorites. Seated in new (or proper full length sized) cases with IMR4350, charge weights in order were 71 and 70 grains as I remember. Standard primers gave better accuracy than magnum ones. 1:12 twists were favored in the 28 to 30 inch barrels used. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 win mag
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