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Rifles, Reloading, Optics, Equipment
Reloading
H1000 vs Retumbo in 338 LM Results
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<blockquote data-quote="barnesuser28" data-source="post: 867113" data-attributes="member: 43468"><p>Today I decided to test H1000 and Retumbo in my 338 LM with the 300 grain Berger OTM. Savage 110 FCP HS 26" barrel. The velocities were measured with a magnetospeed. Lapua brass and fed 215 GM primers were used. I didn't shoot for groups because it was extremely windy out and I wanted to see what velocity I could run the Berger's at.</p><p> </p><p>Here are the results</p><p> </p><p>Retumbo</p><p>86 grains 2512 FPS</p><p>87 grains 2573 FPS</p><p>88 grains 2619 FPS (Velocity has little change between 87-89 grains, may be a great safe accuracy node.)</p><p>89 grains 2628 FPS</p><p>90 grains 2683 FPS</p><p>91 grains 2714 FPS (slightly heavier bolt lift, no ejector mark or flattened primers, safe MAX)</p><p>92 grains 2754 FPS (slightly heavier still, but no flattened primers or ejector mark)</p><p>93 grains 2782 FPS (Heavy bolt lift, still no flat primers or ejector mark, but bolt lift was more than I like to see.)</p><p> </p><p>H1000</p><p>85 grains 2516 FPS</p><p>86 grains 2583 FPS</p><p>87 grains 2596 FPS (little change in velocity between 86-88 grains, may be a good safe accuracy node)</p><p>88 grains 2612 FPS</p><p>89 grains 2662 FPS</p><p>90 grains 2695 FPS (slightly heavier bolt lift, about the same as 91 grain Retumbo charge, safe MAX)</p><p>91 grains 2723 FPS (Heavier bolt lift, but no flat primers or ejector mark.)</p><p>92 grains 2750 FPS (Stuck a case in the chamber, flat primer but no ejector mark.)</p><p> </p><p>I would like to use Retumbo as I have quite a bit and want to use the H1000 for another rifle. </p><p> </p><p>Now I have a question, do I load at 88 grains of retumbo and adjust seating depth for ES and accuracy? Or do I load 90 grains and adjust seating depth for ES and accuracy? This rifle and load will be used for 1000-1300 yard antelope-elk hunting. Would the extra 65 FPS be helpful in lessening the effect of wind drift? I think the 88 grain would likely be more accurate.</p></blockquote><p></p>
[QUOTE="barnesuser28, post: 867113, member: 43468"] Today I decided to test H1000 and Retumbo in my 338 LM with the 300 grain Berger OTM. Savage 110 FCP HS 26" barrel. The velocities were measured with a magnetospeed. Lapua brass and fed 215 GM primers were used. I didn't shoot for groups because it was extremely windy out and I wanted to see what velocity I could run the Berger's at. Here are the results Retumbo 86 grains 2512 FPS 87 grains 2573 FPS 88 grains 2619 FPS (Velocity has little change between 87-89 grains, may be a great safe accuracy node.) 89 grains 2628 FPS 90 grains 2683 FPS 91 grains 2714 FPS (slightly heavier bolt lift, no ejector mark or flattened primers, safe MAX) 92 grains 2754 FPS (slightly heavier still, but no flattened primers or ejector mark) 93 grains 2782 FPS (Heavy bolt lift, still no flat primers or ejector mark, but bolt lift was more than I like to see.) H1000 85 grains 2516 FPS 86 grains 2583 FPS 87 grains 2596 FPS (little change in velocity between 86-88 grains, may be a good safe accuracy node) 88 grains 2612 FPS 89 grains 2662 FPS 90 grains 2695 FPS (slightly heavier bolt lift, about the same as 91 grain Retumbo charge, safe MAX) 91 grains 2723 FPS (Heavier bolt lift, but no flat primers or ejector mark.) 92 grains 2750 FPS (Stuck a case in the chamber, flat primer but no ejector mark.) I would like to use Retumbo as I have quite a bit and want to use the H1000 for another rifle. Now I have a question, do I load at 88 grains of retumbo and adjust seating depth for ES and accuracy? Or do I load 90 grains and adjust seating depth for ES and accuracy? This rifle and load will be used for 1000-1300 yard antelope-elk hunting. Would the extra 65 FPS be helpful in lessening the effect of wind drift? I think the 88 grain would likely be more accurate. [/QUOTE]
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H1000 vs Retumbo in 338 LM Results
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