'olderthansome' - You had the 'good-eye'. I totally missed the drawing in the appendix, (page 212), of Brophy's - "The Krag Rifle".

It appears Joe Poyer was simply citing the dimensions given by Brophy.

FWIW - 26TPI is the pitch used on Krag side-plate and sling-swivel screws.

It would be fun to measure an original "long wiping rod" to confirm Brophy's dimensions.

p.s. Brophy also has a dimension drawing of the 1st type of brass tipped rod on page 212.

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