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Rifles, Reloading, Optics, Equipment
Reloading
338 Norma Reloading Data
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<blockquote data-quote="codyadams" data-source="post: 1956777" data-attributes="member: 87243"><p>Did a charge weight test at 303 yards just because with the 270 Badlands bullets and N570 powder, and the results were very similar with my ladder test. I ran 87, 88, 89, 90, 91, and 91.5 grains working up. Never saw any pressure other than slight primer crater, no ejector mark and no increase in bolt lift throughout. I know the 91 grain load is over 2900 fps, but accuracy seemed to degrade. 88, 89, and 90 grains were all around half MOA or less, and 91.5 was just over. 88 grains is 2830 fps. These were shot with a rear bag and tripod front rest, my hunting type set up. Waited 5 minutes between each shot with a fan on the barrel for cool off.</p><p></p><p>[ATTACH=full]207581[/ATTACH][ATTACH=full]207582[/ATTACH][ATTACH=full]207583[/ATTACH][ATTACH=full]207584[/ATTACH][ATTACH=full]207585[/ATTACH][ATTACH=full]207586[/ATTACH][ATTACH=full]207587[/ATTACH]</p></blockquote><p></p>
[QUOTE="codyadams, post: 1956777, member: 87243"] Did a charge weight test at 303 yards just because with the 270 Badlands bullets and N570 powder, and the results were very similar with my ladder test. I ran 87, 88, 89, 90, 91, and 91.5 grains working up. Never saw any pressure other than slight primer crater, no ejector mark and no increase in bolt lift throughout. I know the 91 grain load is over 2900 fps, but accuracy seemed to degrade. 88, 89, and 90 grains were all around half MOA or less, and 91.5 was just over. 88 grains is 2830 fps. These were shot with a rear bag and tripod front rest, my hunting type set up. Waited 5 minutes between each shot with a fan on the barrel for cool off. [ATTACH type="full"]207581[/ATTACH][ATTACH type="full"]207582[/ATTACH][ATTACH type="full"]207583[/ATTACH][ATTACH type="full"]207584[/ATTACH][ATTACH type="full"]207585[/ATTACH][ATTACH type="full"]207586[/ATTACH][ATTACH type="full"]207587[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
338 Norma Reloading Data
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