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Rifles, Reloading, Optics, Equipment
Reloading
Odd Findings During A Velocity Test
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<blockquote data-quote="Cholla" data-source="post: 3080345" data-attributes="member: 124288"><p>I am working up a load for my Ruger Hawkeye Hunter in 7 PRC. I chose RL-26 to start with. I started at 65 grains and eventually went to 67.5 grains, looking for what seems to be the mythical 3000 fps with the Hornady ELD-X 175.</p><p></p><p>I started to get good grouping at 66 grains, so I tried bumping up the velocity.</p><p></p><p>66 Grain RL-26</p><p>2711, 2715, 2759 fps</p><p></p><p>66.3 grains</p><p>2820, 2773, 2778 fps</p><p></p><p>66.6 grains</p><p>2797, 2786, 2785 fps</p><p></p><p>66.9 grains</p><p>2761, 2778, 2747 fps</p><p></p><p>67.2 grains</p><p>2870, 2854, 2835 fps</p><p></p><p>67.5 grains</p><p>2852, 2903, 2834.</p><p></p><p>I stopped there with no traditional signs of excessive pressure. I was fully expecting to reach 3000 fps. I guess one could say I found a "node," as I am not seeing much change in velocity with an increase in powder. 66.0, 66.3, and 66.3 were giving 1 MOA groups at 100 yards. The first 66-grain group was .6" MOA, but it opened to 1" MOA when I tried it again.</p><p></p><p>This is not what I was expecting.</p></blockquote><p></p>
[QUOTE="Cholla, post: 3080345, member: 124288"] I am working up a load for my Ruger Hawkeye Hunter in 7 PRC. I chose RL-26 to start with. I started at 65 grains and eventually went to 67.5 grains, looking for what seems to be the mythical 3000 fps with the Hornady ELD-X 175. I started to get good grouping at 66 grains, so I tried bumping up the velocity. 66 Grain RL-26 2711, 2715, 2759 fps 66.3 grains 2820, 2773, 2778 fps 66.6 grains 2797, 2786, 2785 fps 66.9 grains 2761, 2778, 2747 fps 67.2 grains 2870, 2854, 2835 fps 67.5 grains 2852, 2903, 2834. I stopped there with no traditional signs of excessive pressure. I was fully expecting to reach 3000 fps. I guess one could say I found a "node," as I am not seeing much change in velocity with an increase in powder. 66.0, 66.3, and 66.3 were giving 1 MOA groups at 100 yards. The first 66-grain group was .6" MOA, but it opened to 1" MOA when I tried it again. This is not what I was expecting. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Odd Findings During A Velocity Test
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