The article titled, Measuring Groove Diameters of Odd-Groove Bores, was recently published in the June edition of The Single Shot Exchange Magazine. For those that do not subscribe to the magazine the article can be accessed at the following link: http://www.texas-mac.com/Measuring_Groove_Diameters_of_Odd_Groove_Bores.html
Wayne
NRA & TSRA Lifetime member. NSSF member. Author & Publisher of the Browning 1885 BPCR book. See www.texas-mac.com