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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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<blockquote data-quote="backwoods83" data-source="post: 1188867" data-attributes="member: 29890"><p>I still haven't jumped on the whole 7x300wm kick **** either, I have a 7mm wby mag with a 27" Kreiger that runs 180s at 3120 with 73.5grns of H1000, some of my brass now has 3 firings and some that I tested Retumbo in have four firings, pockets still tight, brass holding up great, annealed after 2nd firing. I pushed Retumbo to 76grns compressed with no excessive pressures, primers were flat but I couldn't care less about that, since the web expansion is only .0015", and I haven't had to use the Innovative Tech die to size the base yet, at any rate, the 76grn Retumbo load had 180s going 3212 but the ES was horrible and I had vertical from hell at 300yrds, so the 73.5grns of H1000 at 3120 avg with an avg of an 8fps ES and less than a 1/4" of vertical at 300, is the obvious keeper. I can't justify going to a bigger case and using 10grns more powder for 30-80fps, just isn't enough gain for the hassle, and I can shoot factory ammo if I get in a pinch, not likely, but possible.</p></blockquote><p></p>
[QUOTE="backwoods83, post: 1188867, member: 29890"] I still haven't jumped on the whole 7x300wm kick **** either, I have a 7mm wby mag with a 27" Kreiger that runs 180s at 3120 with 73.5grns of H1000, some of my brass now has 3 firings and some that I tested Retumbo in have four firings, pockets still tight, brass holding up great, annealed after 2nd firing. I pushed Retumbo to 76grns compressed with no excessive pressures, primers were flat but I couldn't care less about that, since the web expansion is only .0015", and I haven't had to use the Innovative Tech die to size the base yet, at any rate, the 76grn Retumbo load had 180s going 3212 but the ES was horrible and I had vertical from hell at 300yrds, so the 73.5grns of H1000 at 3120 avg with an avg of an 8fps ES and less than a 1/4" of vertical at 300, is the obvious keeper. I can't justify going to a bigger case and using 10grns more powder for 30-80fps, just isn't enough gain for the hassle, and I can shoot factory ammo if I get in a pinch, not likely, but possible. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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