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Rifles, Reloading, Optics, Equipment
Reloading
Most brass too short. Trim them all?
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<blockquote data-quote="entoptics" data-source="post: 1390127" data-attributes="member: 104268"><p>I agree, and have done all of the following, over 2.5 years and ≥ 2000 rounds of personally loaded ammo in this rifle alone, BEFORE arriving at my original question about necks...</p><p></p><p>1) Started with Federal once fired match brass (and some mixed misc.), overcooked everything, and blew up a good bit of it after 2-3 firings. Replaced barrel at around 1300 rounds of 4000 ftlb fire breathers.</p><p></p><p>2) Cooled my jets, and did all of the standard testing of powder/bullet/length combos AGAIN with new barrel, using MAI (Lapua made) brass. Neck turned to 0.013" ± 0.0005. I weight sort and such too. I'm about 350 rounds into those experiments.</p><p></p><p>3) I've arrived at 208 ELDM (~0.7 - 1.2 MOA) and 212 ELDX (0.9 - 1.5 MOA). These are going right around 2850 (26" bbl) over H1000.</p><p></p><p>4) Learned I'm not a good enough shooter to go much below 1 MOA (not "this one time", I mean 7 outa 10 groups) with this rifle, or any other rifle I shoot regularly. I only ever shoot bipod and rear bag, prone, in a wheat field. I'm good with that.</p><p></p><p>Need to move on to other projects, and just pull this rifle out every month or two. Hit a 2 MOA target every time out to 1000 yds (and shoot a refrigerator at a mile once before I die). </p><p></p><p>Was hoping there's some statistics, formulas, experience regarding neck length. Last thing I'm trying to address...</p></blockquote><p></p>
[QUOTE="entoptics, post: 1390127, member: 104268"] I agree, and have done all of the following, over 2.5 years and ≥ 2000 rounds of personally loaded ammo in this rifle alone, BEFORE arriving at my original question about necks... 1) Started with Federal once fired match brass (and some mixed misc.), overcooked everything, and blew up a good bit of it after 2-3 firings. Replaced barrel at around 1300 rounds of 4000 ftlb fire breathers. 2) Cooled my jets, and did all of the standard testing of powder/bullet/length combos AGAIN with new barrel, using MAI (Lapua made) brass. Neck turned to 0.013" ± 0.0005. I weight sort and such too. I'm about 350 rounds into those experiments. 3) I've arrived at 208 ELDM (~0.7 - 1.2 MOA) and 212 ELDX (0.9 - 1.5 MOA). These are going right around 2850 (26" bbl) over H1000. 4) Learned I'm not a good enough shooter to go much below 1 MOA (not "this one time", I mean 7 outa 10 groups) with this rifle, or any other rifle I shoot regularly. I only ever shoot bipod and rear bag, prone, in a wheat field. I'm good with that. Need to move on to other projects, and just pull this rifle out every month or two. Hit a 2 MOA target every time out to 1000 yds (and shoot a refrigerator at a mile once before I die). Was hoping there's some statistics, formulas, experience regarding neck length. Last thing I'm trying to address... [/QUOTE]
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Reloading
Most brass too short. Trim them all?
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