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Rifles, Reloading, Optics, Equipment
Reloading
Berger Reloading Info - 215gr Hybrid
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<blockquote data-quote="DocB" data-source="post: 931122" data-attributes="member: 55312"><p>I've received my Berger 215gr hybrids and I'm trying to make an intelligent start at working up my loads, at least on paper and logistically, so when I get home I can get started.</p><p></p><p>I've narrowed down my powder choices to 3 based on recommendations and readings here on this site. I figure, based on availability, I'll use H-Retumbo, H-1000, and IMR-7828SSC and buy 1 lb of each and see what works best for me. </p><p></p><p>So I wrote the wonderful folks at Berger and they provided me with the information in the chart below. </p><p></p><p>300 Winchester Magnum</p><p></p><p>Bullet/Powder/Start Load/Apprx Start Velocity/Max Load/Apprx Max Velocity/Fill Ratio</p><p></p><p>215</p><p>Grain / VIHT N165 / 65.0 / 2530 / 68.3 / 2650 / 95.0%</p><p></p><p>215</p><p>Grain / RE-22 /66.0 / 2653 / 69.6 / 2790 / 95.0%</p><p></p><p>215</p><p>Grain /IMR 7828 SSC / 66.5 / 2674 / 69.9 / 2809 / 94.0%</p><p></p><p>215</p><p>Grain / RE - 25 / 68.5 / 2669 / 72.0 / 2795 / 100.0%</p><p></p><p>215</p><p>Grain / H1000 / 70.5 / 2632 / 74.0 / 2772 / 103.0%</p><p></p><p>215</p><p>Grain / NORMA MRP 2 /70.0 / 2645 / 73.8 / 2793 / 102.0%</p><p></p><p>215</p><p>Grain / RamshotMagnum / 72.0 / 2667 / 76.0 / 2830 / 93.0%</p><p></p><p>215</p><p>Grain / RETUMBO / 74.0 / 2686 / 77.9 / 2836 / 107.0%</p><p></p><p>215</p><p>Grain / AA 3100 / 65.5 / 2571 / 69.0 / 2698 / 101.0%</p><p></p><p>215</p><p>Grain / VIHT N160 / 63.0 / 2521 / 66.0 / 2630 / 95.0%</p><p></p><p>215</p><p>Grain / IMR 4831 / 60.5 / 2589 / 63.5 / 2693 / 91.0%</p><p></p><p>215</p><p>Grain / H4831 SC / 65.0 / 2598 / 68.7 / 2740 / 94.0%</p><p></p><p>215</p><p>Grain / IMR 4350 / 60.5 / 2583 / 63.5 / 2690 / 88.0%</p><p></p><p>215</p><p>Grain / VIHT N170 / 71.0 / 2575 / 75.0 / 2669 / 105.0%</p><p></p><p>215</p><p>Grain /AA MAGPRO / 69.5 / 2657 / 73.4 / 2812 / 95.0%</p><p></p><p>215</p><p>Grain / NORMA MRP / 66.0 / 2647 / 69.5 / 2780 / 92.0%</p><p></p><p></p><p>I'm tracking pretty much all of the data except I hit a snag when analyzing the "Fill Ratio" column. If I'm following correctly, this figure would represent the percentage of the case capacity utilized with the load indicated at max.</p><p></p><p>Now the part that's got me a bit confused are the percentages which exceed 100%. Am I to assume where loads are in excess of 100% are ones in which the base of the bullet is pressed into and surrounded by the powder charge?</p><p></p><p>I'd appreciate some clarification and education on this please.</p><p></p><p>Thanks,</p><p></p><p>DocB</p></blockquote><p></p>
[QUOTE="DocB, post: 931122, member: 55312"] I've received my Berger 215gr hybrids and I'm trying to make an intelligent start at working up my loads, at least on paper and logistically, so when I get home I can get started. I've narrowed down my powder choices to 3 based on recommendations and readings here on this site. I figure, based on availability, I'll use H-Retumbo, H-1000, and IMR-7828SSC and buy 1 lb of each and see what works best for me. So I wrote the wonderful folks at Berger and they provided me with the information in the chart below. 300 Winchester Magnum Bullet/Powder/Start Load/Apprx Start Velocity/Max Load/Apprx Max Velocity/Fill Ratio 215 Grain / VIHT N165 / 65.0 / 2530 / 68.3 / 2650 / 95.0% 215 Grain / RE-22 /66.0 / 2653 / 69.6 / 2790 / 95.0% 215 Grain /IMR 7828 SSC / 66.5 / 2674 / 69.9 / 2809 / 94.0% 215 Grain / RE - 25 / 68.5 / 2669 / 72.0 / 2795 / 100.0% 215 Grain / H1000 / 70.5 / 2632 / 74.0 / 2772 / 103.0% 215 Grain / NORMA MRP 2 /70.0 / 2645 / 73.8 / 2793 / 102.0% 215 Grain / RamshotMagnum / 72.0 / 2667 / 76.0 / 2830 / 93.0% 215 Grain / RETUMBO / 74.0 / 2686 / 77.9 / 2836 / 107.0% 215 Grain / AA 3100 / 65.5 / 2571 / 69.0 / 2698 / 101.0% 215 Grain / VIHT N160 / 63.0 / 2521 / 66.0 / 2630 / 95.0% 215 Grain / IMR 4831 / 60.5 / 2589 / 63.5 / 2693 / 91.0% 215 Grain / H4831 SC / 65.0 / 2598 / 68.7 / 2740 / 94.0% 215 Grain / IMR 4350 / 60.5 / 2583 / 63.5 / 2690 / 88.0% 215 Grain / VIHT N170 / 71.0 / 2575 / 75.0 / 2669 / 105.0% 215 Grain /AA MAGPRO / 69.5 / 2657 / 73.4 / 2812 / 95.0% 215 Grain / NORMA MRP / 66.0 / 2647 / 69.5 / 2780 / 92.0% I'm tracking pretty much all of the data except I hit a snag when analyzing the "Fill Ratio" column. If I'm following correctly, this figure would represent the percentage of the case capacity utilized with the load indicated at max. Now the part that's got me a bit confused are the percentages which exceed 100%. Am I to assume where loads are in excess of 100% are ones in which the base of the bullet is pressed into and surrounded by the powder charge? I'd appreciate some clarification and education on this please. Thanks, DocB [/QUOTE]
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Berger Reloading Info - 215gr Hybrid
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