A previous thread presents some interesting data. So, to not hijack that thread, this puzzle is here. It was presented by several people that bullets are sized down by the lube contained in the lube grooves while going down the barrel. Dialog and pictures were presented with the conclusion that the barrel groove diameter minus 0.003" to 0.005" was the diameter of recovered bullets. Using past posts as to what may have used indicated some from Lars lube, which is a high viscosity lube. If it's something else, then post what it was. Enough people use various lubes from several makers to determine it's properties. I test viscosity with a small pea sized ball of lube and play a butane pencil torch on it fairly briefly. It either shows melting and slump or it doesn't. I have several lubes given to me from Lars's lube and they seem to be high viscosity to me from testing them. My way would seem to be simplistic, but it gives repeatable results. The low viscosity lubes shoot very well for me while trials with the higher viscosity non melting lubes shoot larger groups. I make my own lube, but the only other like viscosity lube I've tested was Lyman Black Powder Gold (which I only use in old large caliber rifles). The question is, do high viscosity lubes reduce bullet diameter below the groove diameter as shown in the others threads post. I've tested the low viscosity lubes extensively through multiple year long testing under low to high temperature and associated weather conditions..... my results show no reduction in diameter. I have no problem shooting sub MOA groups in many rifles.... I also get panned for saying that. What do you guys get? Maybe this is the answer to "We aren't doing better"... Why?
Link removed. The link lead to a post on another forum that bashed the CBA and CBA members.
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Maybe a little testing on this will help the accuracy problem stated by many here.
