Dovetail cutter???

[sheepherder]

Originally Posted by SIGP2101

Or you can use known dimensions...

That sounds the simplest way. Could you please post the dimensions of the Luger artillery barrel, especially the rear sight base dovetail?

Originally Posted by SIGP2101

Once I measure dimensions I use mm paper to make large drawing and then just measure angle.

That's pretty much how I do it. I don't use paper, I use plastic sheet. I label the triangles so I can hold them against an unknown angle and see how close they are, then lay out what I think the angle is and cut it out and compare it. These are some I use to set my compound rest and/or set my fixture to mill a feed ramp [first pic]. It works good enough for my work. I don't demand perfection.

I use the plastic template to get my angle, then use the machinist's level to transfer that angle to my fixture [second pic]. This is a Luger feed ramp being cut.

The dovetail dimensions are less than a tenth of an inch in any direction; hard for me to see light under the template. 60º seems to be the closest I can come, so 60º it is.