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Hunting
Long Range Hunting & Shooting
Just got my 7mm-300 win mag reamer
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<blockquote data-quote="Badgerclaw" data-source="post: 1489590" data-attributes="member: 101780"><p>Well a little update. Im going to order a 300 win bushing die, like everyone sugests, but I started off using what I have on hand to form brass. It was new brass so I didn't run it through the FL 300 die, just ran it through a FL 7mm rem mag die until the neck was sized all the way down to the shoulder. </p><p></p><p>Then I did a ladder test with H1000 looking for pressure. Started at 72.5 gr and it actually made a decent plunger mark and slightly flattend primer. I'm using winchester brass for now. Went up to 73 and started seeing less pressure. 73.5, almost no pressure signs. Worked up to 75gr and started to see the primer flatten out just a little again, no plunger mark. I threw the magneto speed on and 75gr shot 3104. So I have a starting point anyway. This is with 180gr Eld-m out of a 26" 1-8.75 twist barrel.</p></blockquote><p></p>
[QUOTE="Badgerclaw, post: 1489590, member: 101780"] Well a little update. Im going to order a 300 win bushing die, like everyone sugests, but I started off using what I have on hand to form brass. It was new brass so I didn't run it through the FL 300 die, just ran it through a FL 7mm rem mag die until the neck was sized all the way down to the shoulder. Then I did a ladder test with H1000 looking for pressure. Started at 72.5 gr and it actually made a decent plunger mark and slightly flattend primer. I'm using winchester brass for now. Went up to 73 and started seeing less pressure. 73.5, almost no pressure signs. Worked up to 75gr and started to see the primer flatten out just a little again, no plunger mark. I threw the magneto speed on and 75gr shot 3104. So I have a starting point anyway. This is with 180gr Eld-m out of a 26" 1-8.75 twist barrel. [/QUOTE]
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Just got my 7mm-300 win mag reamer
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