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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Absolute Hammer actual vs Quick-load
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<blockquote data-quote="LongWalker" data-source="post: 2616646" data-attributes="member: 97337"><p>Finally picked up Quickload software a few weeks ago and have been running some of my current loads through it to compare what QL says versus the actual chrono data. The most interesting and biggest variation was with the 151 Absolute Hammer in my 30-06.</p><p></p><p>Plugged in case volume I measured which is 70.66 gr of H2O (Lapua 2x fired neck sized), 62.0 gr VV N-550 and a COL with the 151 AH of 3.255.</p><p>Rifle is a factory Franchi momentum with a 22" barrel. </p><p></p><p>QL shows slightly over SAMMI chamber pressure (62926) with a velocity of 3037 fps. My actual/observed velocity measured with my most recent three shot group (load has sped up a little) over a Magneto Speed V3 averages 3248 with an ES of 8 and an SD of 5.6. No signs of pressure.</p><p></p><p>Everything else I've done the comparison with has been within about 10% which is understandable so I was pretty surprised with the Hammer load.</p><p></p><p>I understand the difference in the AH vs the Hammer Hunter, Shock Hammer, etc. but I expected to see a higher chamber pressure not the difference in velocity.</p><p></p><p>Don't know if anyone else has run the numbers with any AH loads and found something similar.</p></blockquote><p></p>
[QUOTE="LongWalker, post: 2616646, member: 97337"] Finally picked up Quickload software a few weeks ago and have been running some of my current loads through it to compare what QL says versus the actual chrono data. The most interesting and biggest variation was with the 151 Absolute Hammer in my 30-06. Plugged in case volume I measured which is 70.66 gr of H2O (Lapua 2x fired neck sized), 62.0 gr VV N-550 and a COL with the 151 AH of 3.255. Rifle is a factory Franchi momentum with a 22" barrel. QL shows slightly over SAMMI chamber pressure (62926) with a velocity of 3037 fps. My actual/observed velocity measured with my most recent three shot group (load has sped up a little) over a Magneto Speed V3 averages 3248 with an ES of 8 and an SD of 5.6. No signs of pressure. Everything else I've done the comparison with has been within about 10% which is understandable so I was pretty surprised with the Hammer load. I understand the difference in the AH vs the Hammer Hunter, Shock Hammer, etc. but I expected to see a higher chamber pressure not the difference in velocity. Don't know if anyone else has run the numbers with any AH loads and found something similar. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Absolute Hammer actual vs Quick-load
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