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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Sherman Build (This Is My Boomstick!)
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<blockquote data-quote="Oldcappj7" data-source="post: 1405740" data-attributes="member: 98568"><p>The following is info. from shooting some 338Sherman loads today as a follow up on an initial few loads over the weekend with superformance powder and the 250 EH AND 285 ELDMs. Max load over the weekend on the 250s was 71 grains @ 2957'. Max on 285s was 68 @ 2701. I wasn't careful on temps of loaded ammo and was a mix of lots that were in the back of, and inside the warm cab etc. so today I tried to be fairly careful and ran the following. The H100V loads are what I have been running in the 250EH and was curious as to how temp sensitive it was as well and how speeds compared. I backed off the max loads to what might be comfortable yet good performers. Nothing today showed the slightest bit of overpressure in any way, roundness to the edge of primers and zero felt bolt lift. Hope this info. May be helpful to any interested. </p><p></p><p>Jace </p><p></p><p>02-14-18 46 degrees </p><p>Loading 67.5 superformance WWM RWS </p><p>285 ELDMS at 3.51+- COAL.1,2,3 cold </p><p>46 degrees</p><p>4,5,6 kept in pocket body temp</p><p>1-2714</p><p>2-2706</p><p>3-2703</p><p>4-2720</p><p>5-2733</p><p>6-2738</p><p>Loading 69.5 superformance WWM RWS</p><p>250EH at 3.56 COAL 1,2,3, cold 46 degrees</p><p>4,5,6, kept in pocket body temp</p><p>1-2913</p><p>2-2930</p><p>3-2915</p><p>4-2930</p><p>5-2925</p><p>6-2929</p><p>250 EH 66.2 H100V ditto</p><p>1-2824 cold bore cold ammo</p><p>2-2843</p><p>3-2841</p><p>4-2873</p><p>5-2856</p><p>6-2892</p></blockquote><p></p>
[QUOTE="Oldcappj7, post: 1405740, member: 98568"] The following is info. from shooting some 338Sherman loads today as a follow up on an initial few loads over the weekend with superformance powder and the 250 EH AND 285 ELDMs. Max load over the weekend on the 250s was 71 grains @ 2957’. Max on 285s was 68 @ 2701. I wasn’t careful on temps of loaded ammo and was a mix of lots that were in the back of, and inside the warm cab etc. so today I tried to be fairly careful and ran the following. The H100V loads are what I have been running in the 250EH and was curious as to how temp sensitive it was as well and how speeds compared. I backed off the max loads to what might be comfortable yet good performers. Nothing today showed the slightest bit of overpressure in any way, roundness to the edge of primers and zero felt bolt lift. Hope this info. May be helpful to any interested. Jace 02-14-18 46 degrees Loading 67.5 superformance WWM RWS 285 ELDMS at 3.51+- COAL.1,2,3 cold 46 degrees 4,5,6 kept in pocket body temp 1-2714 2-2706 3-2703 4-2720 5-2733 6-2738 Loading 69.5 superformance WWM RWS 250EH at 3.56 COAL 1,2,3, cold 46 degrees 4,5,6, kept in pocket body temp 1-2913 2-2930 3-2915 4-2930 5-2925 6-2929 250 EH 66.2 H100V ditto 1-2824 cold bore cold ammo 2-2843 3-2841 4-2873 5-2856 6-2892 [/QUOTE]
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338 Sherman Build (This Is My Boomstick!)
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