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Rifles, Reloading, Optics, Equipment
Reloading
What’s up with Hornady’s reloading podcast?
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<blockquote data-quote="MagnumManiac" data-source="post: 3079434" data-attributes="member: 10755"><p>I have been saying this here since I started shooting F-class. When I started, we only had short and middle length ranges, 300-600 metres.</p><p>I had a mentor the first season and he showed me that everybody was shooting their test loads at 300 metres, all ladders, all groups and that was how it was done. After the 300 metre testing, verification of the load was shot at 600 metres with several 10 shot groups looking for the tightest and most uniform AGGREGATE.</p><p>As has been said, a load DOES change, and atmospheric conditions can and do play havoc with a load. We shoot on the coast one week, then up at elevation the next at 880 metres elevation, your load does not stay the same between those 2 conditions. Barrel tuners help, but we also use an air density gauge.</p><p>Now, talking aggregates and differing conditions, my 6.5x47 Lapua has an extremely accurate load at my home range on the coast, but it completely falls apart everywhere else, so my next best load stays about the same no matter where I shoot and can be dialled in by a click up or down on the tuner at each different range, yet, it never prints as good as my home range load…</p><p>So, my question to you all that think a 3 shot group, or a 5 shot group, is really telling you anything?</p><p>I shoot my 10 shot verifying loads on different days at different times, just like in competition, because I can tell you what's extreme precision today, can turn into extreme poo the next…</p><p>Also, ES & SD are NOT the fundamental cause for an extremely precise group as many think.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 3079434, member: 10755"] I have been saying this here since I started shooting F-class. When I started, we only had short and middle length ranges, 300-600 metres. I had a mentor the first season and he showed me that everybody was shooting their test loads at 300 metres, all ladders, all groups and that was how it was done. After the 300 metre testing, verification of the load was shot at 600 metres with several 10 shot groups looking for the tightest and most uniform AGGREGATE. As has been said, a load DOES change, and atmospheric conditions can and do play havoc with a load. We shoot on the coast one week, then up at elevation the next at 880 metres elevation, your load does not stay the same between those 2 conditions. Barrel tuners help, but we also use an air density gauge. Now, talking aggregates and differing conditions, my 6.5x47 Lapua has an extremely accurate load at my home range on the coast, but it completely falls apart everywhere else, so my next best load stays about the same no matter where I shoot and can be dialled in by a click up or down on the tuner at each different range, yet, it never prints as good as my home range load… So, my question to you all that think a 3 shot group, or a 5 shot group, is really telling you anything? I shoot my 10 shot verifying loads on different days at different times, just like in competition, because I can tell you what’s extreme precision today, can turn into extreme poo the next… Also, ES & SD are NOT the fundamental cause for an extremely precise group as many think. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
What’s up with Hornady’s reloading podcast?
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