Thread: Tony Hawkin's and I wonder what happened to his rifling machine

@akaroa1 I saw a youtube vid on someone who had made a civil war cannon replica.
The cutting rifling machine's "guide" was made from twisting a length of mild steel flat bar. So long as it was all equally tempered the twist would be constant along the whole bar.
Sounds easier than making the wooden guides used in classic rifling machine setups ... and if you want progressive twist rifling you might modify that method a bit by clamping it higher and higher in between applying twist.

Anyway, easier than trying to find under-appreciated machine tools sold to someone by someone else in 1985.