I hand cut dovetails for the four barrel lugs. Using a hacksaw
I carefully made several cuts that were then chiseled out.  I
then used a file to clean up the base and a chisel to raise the
two edges just a bit.
The barrel lug was then carefully staked in place. The 1792
Contract rifle use's four barrel lugs. They are set at 2 1/2
inches, 12 1/2 inches, 22 1/2 inches and 32 1/2 inches from the
muzzle. One more lug will be dovetailed into the barrel later
that the sling swivel will be pinned to.