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Tennessee Gun Owners Forums
Rifles
Ladder test
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<blockquote data-quote="Hozzie" data-source="post: 3886235" data-attributes="member: 15608"><p>I do it a bit backwards than most, but it is still a type of ladder test. I am of the opinion that each gun has a best "off the lands" depth that affects groups more than powder itself. I will always load sets of rounds set at different distances off of the lands. I usually start with .02, .04, and .06 off of the lands loads all with the exact same powder and charge weight (and always trickle to get exact charges). I typically use whichever powder the books show as the most accurate in their tests if I have it. I will then shoot these loads and determine which distance off the lands my rifle likes best. There is usually one obvious group.</p><p></p><p>I will then start with ladder tests of two or three different powders and charge weights depending on the caliber. Typically, I do two, three shot groups for each powder load. One powder will then usually show as the best option for that particular bullet. From there you can do a second test with just the one powder if you really want to get exact. For Hunting purposes, I am usually good after my three shot group testing.</p></blockquote><p></p>
[QUOTE="Hozzie, post: 3886235, member: 15608"] I do it a bit backwards than most, but it is still a type of ladder test. I am of the opinion that each gun has a best "off the lands" depth that affects groups more than powder itself. I will always load sets of rounds set at different distances off of the lands. I usually start with .02, .04, and .06 off of the lands loads all with the exact same powder and charge weight (and always trickle to get exact charges). I typically use whichever powder the books show as the most accurate in their tests if I have it. I will then shoot these loads and determine which distance off the lands my rifle likes best. There is usually one obvious group. I will then start with ladder tests of two or three different powders and charge weights depending on the caliber. Typically, I do two, three shot groups for each powder load. One powder will then usually show as the best option for that particular bullet. From there you can do a second test with just the one powder if you really want to get exact. For Hunting purposes, I am usually good after my three shot group testing. [/QUOTE]
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