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Hunting
Long Range Hunting & Shooting
Acceptable ES and SD
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<blockquote data-quote="Jumpalot" data-source="post: 1732312" data-attributes="member: 4867"><p>I haven't shot over a chrono in about 5 yrs. A pretty well known gunsmith on here once told me that I could chase numbers or go out and shoot to see what my rifle will really do. He suggested to load up until I saw high pressure (a pretty good swipe mark on the bottom of the case), then reduce the load by two grains and I should be pretty close. I thought he was nuts, but because of his reputation I tried it. Well lo and behold it worked. At least well enough to hold sub MOA out to 1000. I've done it on three of my rifles and my buddy's two rifles. No idea what my ES and SD are. I figure out my velocity through my drop charts. After I've found my pressure load, I go test at 500, 800, and 1000 yds and look for vertical dispersion. If I find any, I might tweak my load a half grain up or down or adjust seating depth a little. But, I've only had to do that on my 6.5x284 and that was a .5 grain increase to get me where I needed. Maybe not the answer you're looking for, but I used to waste a lot of time shooting over a chrono looking for a load.</p></blockquote><p></p>
[QUOTE="Jumpalot, post: 1732312, member: 4867"] I haven't shot over a chrono in about 5 yrs. A pretty well known gunsmith on here once told me that I could chase numbers or go out and shoot to see what my rifle will really do. He suggested to load up until I saw high pressure (a pretty good swipe mark on the bottom of the case), then reduce the load by two grains and I should be pretty close. I thought he was nuts, but because of his reputation I tried it. Well lo and behold it worked. At least well enough to hold sub MOA out to 1000. I've done it on three of my rifles and my buddy's two rifles. No idea what my ES and SD are. I figure out my velocity through my drop charts. After I've found my pressure load, I go test at 500, 800, and 1000 yds and look for vertical dispersion. If I find any, I might tweak my load a half grain up or down or adjust seating depth a little. But, I've only had to do that on my 6.5x284 and that was a .5 grain increase to get me where I needed. Maybe not the answer you're looking for, but I used to waste a lot of time shooting over a chrono looking for a load. [/QUOTE]
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