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Rifles, Reloading, Optics, Equipment
Reloading
300WM LOAD DEVELOPMENT
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<blockquote data-quote="West Calamus" data-source="post: 2367223" data-attributes="member: 110228"><p>You left out a lot of info. 1 st fired brass? you can get up to 100 fps velocity gain in 300 WM once brass is fired formed.How many shots down the tube? Gunwrecks use pretty good barrels and the velocity will start to pick up around 300 shots down the tube. You are only jumping up .2 grains at a time and on a extruded powder you will not notice any velocity change like you would on a ball powder. Increase your loads on H1000 .8 grains when ladder testing. I have gotten 3,150 fps with 78.5 of H1000 on a 175 gr sierra HP. I Use IMR 4831 now on 300 WM on 175 gr Sierras since it is easier to find and get 3,200 fps with virgin Peterson brass.</p></blockquote><p></p>
[QUOTE="West Calamus, post: 2367223, member: 110228"] You left out a lot of info. 1 st fired brass? you can get up to 100 fps velocity gain in 300 WM once brass is fired formed.How many shots down the tube? Gunwrecks use pretty good barrels and the velocity will start to pick up around 300 shots down the tube. You are only jumping up .2 grains at a time and on a extruded powder you will not notice any velocity change like you would on a ball powder. Increase your loads on H1000 .8 grains when ladder testing. I have gotten 3,150 fps with 78.5 of H1000 on a 175 gr sierra HP. I Use IMR 4831 now on 300 WM on 175 gr Sierras since it is easier to find and get 3,200 fps with virgin Peterson brass. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300WM LOAD DEVELOPMENT
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