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Rifles, Reloading, Optics, Equipment
Reloading
Scale
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<blockquote data-quote="Trickymissfit" data-source="post: 691842" data-attributes="member: 25383"><p>OK, it's dead accurate. But tell me how your testing it? You'll need three units to seriously check it out, and I doubt you own three. Secondly you have to have some sort of a standard to check it against (all three). Thirdly you need to do all your checks with these three units in a controlled area. </p><p> </p><p>I ran a test once with a Lyman #55 measurer throwing BLC2 at 25.5 grains. Measured the charge on three scales plus an Ohaus #304. I saw about 1/10th grain variation for about 25 throws (a 2/10th grain window) . Digital scales were Pacts (2) and one RCBS, plus the 304 Ohaus. I did the test in the dead of winter, and it was very dry inside the house. Had I ran the same test in July, I doubt the results would have been similar. I did check the two pacts with certified check weights that I brought home from work. They were spot on. (The RCBS was gone by then) Later I compaired them with a $10K certified master at work, and then compaired them to the lab master. Error was in the .033 grain area (window or even slightly narrower)</p><p> </p><p>All I'm saying here is that at times we are whipping a dead horse! I see no (as in zero) difference between the RCBS, Pact, and the Lyman when it worked. We worry about 1/10th of a grain in a 60 grain load, when it figures out to be 1/600th of the total charge!!</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 691842, member: 25383"] OK, it's dead accurate. But tell me how your testing it? You'll need three units to seriously check it out, and I doubt you own three. Secondly you have to have some sort of a standard to check it against (all three). Thirdly you need to do all your checks with these three units in a controlled area. I ran a test once with a Lyman #55 measurer throwing BLC2 at 25.5 grains. Measured the charge on three scales plus an Ohaus #304. I saw about 1/10th grain variation for about 25 throws (a 2/10th grain window) . Digital scales were Pacts (2) and one RCBS, plus the 304 Ohaus. I did the test in the dead of winter, and it was very dry inside the house. Had I ran the same test in July, I doubt the results would have been similar. I did check the two pacts with certified check weights that I brought home from work. They were spot on. (The RCBS was gone by then) Later I compaired them with a $10K certified master at work, and then compaired them to the lab master. Error was in the .033 grain area (window or even slightly narrower) All I'm saying here is that at times we are whipping a dead horse! I see no (as in zero) difference between the RCBS, Pact, and the Lyman when it worked. We worry about 1/10th of a grain in a 60 grain load, when it figures out to be 1/600th of the total charge!! gary [/QUOTE]
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