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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
RL33 Temperature Regression Thread
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<blockquote data-quote="Pdvdh" data-source="post: 993163" data-attributes="member: 4191"><p>Jeff, </p><p>I had to go back to the Thread from 4+ years ago. My memory isn't that good. I did indeed record MV, and as it turned out, MV did not increase, even though symptoms of excessive/increased pressure were noted.</p><p></p><p>Here's a copy and past from that Thread:</p><p></p><p>"<em>This casing was slicker than snot on the outside. Almost dropped it on the ground. Velocity across the Oehler 33 was 2936 fps. Velocity across the PACT Pro was 2958 fps. This 2936 fps velocity is in comparison to the 4-shot string average velocity chronographed across the Oehler 33 last weekend of 2941 fps. Last weekend my PACT Pro was hit or miss and didn't give enough data to provide a 4-shot average comparison to today's velocity. But today's velocity data were good to go. The difference in velocities between the two chronographs run right about 20 fps when they're both hitting on all 8 cylinders - the Oehler ~20 fps slower than the PACT. So there was no evidence of any additional pressure based on the muzzle velocity obtained with this soapy-water lathered cartridge.</em>"</p><p></p><p>And here's a link to the Thread, which targets my Post, which was Post #42.</p><p></p><p><a href="http://www.longrangehunting.com/forums/f28/known-loads-too-hot-now-why-55934/index6.html" target="_blank">http://www.longrangehunting.com/forums/f28/known-loads-too-hot-now-why-55934/index6.html</a></p></blockquote><p></p>
[QUOTE="Pdvdh, post: 993163, member: 4191"] Jeff, I had to go back to the Thread from 4+ years ago. My memory isn't that good. I did indeed record MV, and as it turned out, MV did not increase, even though symptoms of excessive/increased pressure were noted. Here's a copy and past from that Thread: "[I]This casing was slicker than snot on the outside. Almost dropped it on the ground. Velocity across the Oehler 33 was 2936 fps. Velocity across the PACT Pro was 2958 fps. This 2936 fps velocity is in comparison to the 4-shot string average velocity chronographed across the Oehler 33 last weekend of 2941 fps. Last weekend my PACT Pro was hit or miss and didn't give enough data to provide a 4-shot average comparison to today's velocity. But today's velocity data were good to go. The difference in velocities between the two chronographs run right about 20 fps when they're both hitting on all 8 cylinders - the Oehler ~20 fps slower than the PACT. So there was no evidence of any additional pressure based on the muzzle velocity obtained with this soapy-water lathered cartridge.[/I]" And here's a link to the Thread, which targets my Post, which was Post #42. [url]http://www.longrangehunting.com/forums/f28/known-loads-too-hot-now-why-55934/index6.html[/url] [/QUOTE]
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RL33 Temperature Regression Thread
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