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Hunting
Long Range Hunting & Shooting
Powder max on .270 Winchester
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<blockquote data-quote="James Pearson" data-source="post: 1726937" data-attributes="member: 111455"><p>My 59gr load was near 2MOA at 200 yds., and as noted before the 59.5 was 3/4 MOA. I was jumping in .5 grain increments so I'm backing off like you suggested, to 59.2, 59.3 & 59.4 just to see. I had no heavy bolt, case head markings, etc., on a 94 degree day today. I purposefully let my loads get to ambient temperature before shooting. </p><p></p><p>Am I correct in thought process that as fall comes on and temps drop, this load will decrease slightly as well? I was guessing between the 140-150 and knew I was stepping on it, but as each load progressed with no indicators I kept loading until I knew it was time to stop. Self preservation factors start kicking in!</p><p></p><p>I was concerned about over-pressure so I was closely watching for any indicators. Only got the slightly flattened primer. FPS climbed with each load progression an average of 20+/- FPS. </p><p></p><p>Sound about right from your experience?</p></blockquote><p></p>
[QUOTE="James Pearson, post: 1726937, member: 111455"] My 59gr load was near 2MOA at 200 yds., and as noted before the 59.5 was 3/4 MOA. I was jumping in .5 grain increments so I’m backing off like you suggested, to 59.2, 59.3 & 59.4 just to see. I had no heavy bolt, case head markings, etc., on a 94 degree day today. I purposefully let my loads get to ambient temperature before shooting. Am I correct in thought process that as fall comes on and temps drop, this load will decrease slightly as well? I was guessing between the 140-150 and knew I was stepping on it, but as each load progressed with no indicators I kept loading until I knew it was time to stop. Self preservation factors start kicking in! I was concerned about over-pressure so I was closely watching for any indicators. Only got the slightly flattened primer. FPS climbed with each load progression an average of 20+/- FPS. Sound about right from your experience? [/QUOTE]
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Powder max on .270 Winchester
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