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Re: Bore diameter

Posted by Dick Hosmer on Monday, 13 December 2010, at 10:58 a.m., in response to Bore diameter, posted by Thomas Jacobson on Sunday, 12 December 2010, at 5:22 p.m.

The NOMINAL bore is .450". Yours is NOT unusual.

Tom Trevor has a chart of about 75, maybe more, which were carefully measured, and IIRC, there WERE a couple above .460". But, I think the average was much more like yours.

The groove diameters vary also, of course, so, if you are seeking the absolute best possible accuracy, you do need to know the dimensions of YOUR barrel and size your bullets accordingly.

I do a double-take every time I see that number, since it is a permutation of one I've owned since the 70s. :-)


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