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Wife's 7mm Sherman Max build thread
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<blockquote data-quote="codyadams" data-source="post: 2502868" data-attributes="member: 87243"><p>Ok, last year at our high country deer camp, a big ol bear came in and tore things up, scattered our fire ring, and dropped BIG piles of bear <img class="smilie smilie--emoji" loading="lazy" alt="💩" title="Pile of poo :poop:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f4a9.png" data-shortname=":poop:" /> all over our tent area. Also I saw a massive black bear during elk season, going to an area I know is likely a den, as well as another bear in a nearby bowl. My wife really wants a bear rug.......GAME ON!!!</p><p></p><p>My previous load with the 175 eld-x's @2900 was pretty hot, and I was starting to loose primer pockets @ 3 fireings, so I went back to the drawing board to try some bullets I originally intended this for.....the 170 PVA Cayuga's! After trying RS magnum, H1000, Retumbo and N565, H1000 gave the best overall results, top pressure without beating up brass is around 2875ish fps.</p><p></p><p>I will say, finding seating depth on these pills is a challenge. I took out the firing pin assembly and ejector, and made sure I had a case that fit the chamber perfectly but had no feel on bolt lift or drop. I seated the 170 in it with the "centering band" about .275" in front of the case mouth, where I knew it would be into the lands, as the throat on this chamber was .205", and I could only JUST feel it, barely at all. I slowly seated deeper until I finally found where it came off, and that was at 3.085-3.090"OAL. So, I loaded a seating depth from 3.090", going deeper in .020" increments out to 3.030". Groups were just under 1 MOA, until 3.050, or about .035" off, where they went into a little cluster. Also, the 9 rounds fired from 3.070" out to 3.030" has an e.s. of 11 fps, with different seatings every 3. The 3 fired at 3.050" had an e.s. of 3 fps.....this should make a good load!</p><p></p><p>[ATTACH=full]357736[/ATTACH]</p><p></p><p>So I loaded up a ladder @ 3.050", velocity should range from 2750-2850ish, so once this weather calms down I will have my wife go shoot it and see what we end up with.</p><p></p><p>Hoping to put these through a bear this spring, would be a great test of terminal performance!</p></blockquote><p></p>
[QUOTE="codyadams, post: 2502868, member: 87243"] Ok, last year at our high country deer camp, a big ol bear came in and tore things up, scattered our fire ring, and dropped BIG piles of bear 💩 all over our tent area. Also I saw a massive black bear during elk season, going to an area I know is likely a den, as well as another bear in a nearby bowl. My wife really wants a bear rug.......GAME ON!!! My previous load with the 175 eld-x's @2900 was pretty hot, and I was starting to loose primer pockets @ 3 fireings, so I went back to the drawing board to try some bullets I originally intended this for.....the 170 PVA Cayuga's! After trying RS magnum, H1000, Retumbo and N565, H1000 gave the best overall results, top pressure without beating up brass is around 2875ish fps. I will say, finding seating depth on these pills is a challenge. I took out the firing pin assembly and ejector, and made sure I had a case that fit the chamber perfectly but had no feel on bolt lift or drop. I seated the 170 in it with the "centering band" about .275" in front of the case mouth, where I knew it would be into the lands, as the throat on this chamber was .205", and I could only JUST feel it, barely at all. I slowly seated deeper until I finally found where it came off, and that was at 3.085-3.090"OAL. So, I loaded a seating depth from 3.090", going deeper in .020" increments out to 3.030". Groups were just under 1 MOA, until 3.050, or about .035" off, where they went into a little cluster. Also, the 9 rounds fired from 3.070" out to 3.030" has an e.s. of 11 fps, with different seatings every 3. The 3 fired at 3.050" had an e.s. of 3 fps.....this should make a good load! [ATTACH type="full" alt="20220407_170754.jpg"]357736[/ATTACH] So I loaded up a ladder @ 3.050", velocity should range from 2750-2850ish, so once this weather calms down I will have my wife go shoot it and see what we end up with. Hoping to put these through a bear this spring, would be a great test of terminal performance! [/QUOTE]
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Wife's 7mm Sherman Max build thread
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