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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 LAI & Bergers "Need Advice"
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<blockquote data-quote="SHRTSHTR" data-source="post: 594364" data-attributes="member: 12514"><p>jmden,</p><p> </p><p>I just looked at my load data using Retumbo and 300gn Bergers. I was getting 2,958fps with a 100gn Retumbo .010 off lands and Fed 215 magnums. My ES was 10 with an SD of 5. This was a 6 shot group, cooling in between.</p><p> </p><p>My rifle description: McMillan A-5, Stiller TAC-338 action, Jewell trigger, Seekins bottom metal, 30" Lilja #8 contour, 10 twist and muzzle brake. NF 5.5x22x56 NPR2, 40 moa rail.</p><p> </p><p>The load data above looks good reading about it but not so good on paper. I must admit that while testing I had wind but under 10mph. My vertical spread at 1k was just under 2.5 inches. My horizontal was 9 inches. Funny thing is after studying my targets a closer ranges, I seem to always get one flyer with the Bergers.</p><p> </p><p>Based on the info you provided, I think I am close to where I should be. Would like to try some more load development but do not want to waste precious barrel life. I have about 400 rounds down the tube now.</p></blockquote><p></p>
[QUOTE="SHRTSHTR, post: 594364, member: 12514"] jmden, I just looked at my load data using Retumbo and 300gn Bergers. I was getting 2,958fps with a 100gn Retumbo .010 off lands and Fed 215 magnums. My ES was 10 with an SD of 5. This was a 6 shot group, cooling in between. My rifle description: McMillan A-5, Stiller TAC-338 action, Jewell trigger, Seekins bottom metal, 30" Lilja #8 contour, 10 twist and muzzle brake. NF 5.5x22x56 NPR2, 40 moa rail. The load data above looks good reading about it but not so good on paper. I must admit that while testing I had wind but under 10mph. My vertical spread at 1k was just under 2.5 inches. My horizontal was 9 inches. Funny thing is after studying my targets a closer ranges, I seem to always get one flyer with the Bergers. Based on the info you provided, I think I am close to where I should be. Would like to try some more load development but do not want to waste precious barrel life. I have about 400 rounds down the tube now. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 LAI & Bergers "Need Advice"
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