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Hunting
Long Range Hunting & Shooting
New 300 WM —How to find “THE”bullet
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<blockquote data-quote="SidecarFlip" data-source="post: 1622333" data-attributes="member: 39764"><p>Get the LTL measurement and determine the best jump with a moderate load of whatever propellant you want to use. I load with H1000 but your choice. I'd start at .0300 off the LTL measurement Sizing with bushing dies and bumping the shoulder 0.001 or whatever chambers the best in your piece. Jump will be determined by how long your mag well will accept unless you install a Wyatt box.</p><p></p><p>Once you determine the 'sweet spot', start increasing the propellant load until you chrono where you want it and the groups stay tight. My rule of thumb is as close to 3000 fps as I can get without exceeding 3000 fps (don't matter what weight the pill is).</p><p></p><p>My 300 WM will shoot consistent 1/2" groups (5) at 250 yards.</p></blockquote><p></p>
[QUOTE="SidecarFlip, post: 1622333, member: 39764"] Get the LTL measurement and determine the best jump with a moderate load of whatever propellant you want to use. I load with H1000 but your choice. I'd start at .0300 off the LTL measurement Sizing with bushing dies and bumping the shoulder 0.001 or whatever chambers the best in your piece. Jump will be determined by how long your mag well will accept unless you install a Wyatt box. Once you determine the 'sweet spot', start increasing the propellant load until you chrono where you want it and the groups stay tight. My rule of thumb is as close to 3000 fps as I can get without exceeding 3000 fps (don't matter what weight the pill is). My 300 WM will shoot consistent 1/2" groups (5) at 250 yards. [/QUOTE]
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New 300 WM —How to find “THE”bullet
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