Re: Re: Re: parallel bore

Posted by E. U. Clid on April 06, 2008 in reply to Re: Re: parallel bore .:

4.84mm = 0.190 inches. Pretty close to Lawson's average of 0.191 inches.
NB if you read his mouthpieces essay (cited by 'Mike' above) you have to ignore the appalling grammar. Mr Betts really ought to have it corrected.

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