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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
No Base line to compare with
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<blockquote data-quote="MBird" data-source="post: 1088559" data-attributes="member: 90116"><p>Looking for some more superior Knowledge: </p><p>I have just started with the 338LM </p><p>Working on [FONT=&quot]developing[/FONT] a Load, I do not know any one here shooting a 338LM, Looked in my books/on line, I have selected 2 bullets and 3 powders to start with.</p><p>Went to the Field to do first round of testing.</p><p>All groups were sub MOA, nothing class as a Bung. I could not see any major difference in group size. all 1/2 to 3/4 MOA</p><p></p><p>Conditions: 73-75 Deg Overcast skies</p><p>Wind: 3-5 mph straight from my 6 o'clock</p><p>Elevation 6050 ft</p><p>OAL 3.70</p><p>Target heading 358deg</p><p>Lat 39.53</p><p>Humidity 38</p><p>Barrel cleaned after each group and let cool</p><p></p><p>Every thing shot in 5 shot groups</p><p>Retumbo 89gr 285 HPBT 2843 (spread 15)</p><p> 90 285 HBPT 2896 (spread 17)</p><p> 91 285 Amax 2935 (spread 30)</p><p></p><p>H1000 86 285 HPBT 2767 (22)</p><p> 87 285 Amax 2712 (7)</p><p></p><p>RL 25 87 285 HPBT 2853 (11)</p><p> 87 285 Amax 2875 (12)</p><p></p><p></p><p>I show no signs of pressure, bolt works easy on all loads: </p><p>I will re-shoot the H1000 (87)Load not sure why higher charge lower velocity </p><p></p><p>The Velocity looks a little high from books, but it was warm today and over 6000ft elevation.</p><p>I just have no base line to compare with</p></blockquote><p></p>
[QUOTE="MBird, post: 1088559, member: 90116"] Looking for some more superior Knowledge: I have just started with the 338LM Working on [FONT="]developing[/FONT] a Load, I do not know any one here shooting a 338LM, Looked in my books/on line, I have selected 2 bullets and 3 powders to start with. Went to the Field to do first round of testing. All groups were sub MOA, nothing class as a Bung. I could not see any major difference in group size. all 1/2 to 3/4 MOA Conditions: 73-75 Deg Overcast skies Wind: 3-5 mph straight from my 6 o'clock Elevation 6050 ft OAL 3.70 Target heading 358deg Lat 39.53 Humidity 38 Barrel cleaned after each group and let cool Every thing shot in 5 shot groups Retumbo 89gr 285 HPBT 2843 (spread 15) 90 285 HBPT 2896 (spread 17) 91 285 Amax 2935 (spread 30) H1000 86 285 HPBT 2767 (22) 87 285 Amax 2712 (7) RL 25 87 285 HPBT 2853 (11) 87 285 Amax 2875 (12) I show no signs of pressure, bolt works easy on all loads: I will re-shoot the H1000 (87)Load not sure why higher charge lower velocity The Velocity looks a little high from books, but it was warm today and over 6000ft elevation. I just have no base line to compare with [/QUOTE]
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