1 Attachment(s)
Drilling Krag Buttstock lightening holes - measurements
Did some measuring of my original stock's butt, and laid out a template.
First, I traced my buttplate, cut it out. I marked measured twice along two horizontals, and found their midpoint, and used this to get the centerline. I then transferred the template to my new butt, used a pushpin to mark these and get the centerline down the new butt. Looks to be be very perfect.
The location of the bottom screw on the template doesn't need to be exact right now. We are just going to use it as a reference point. In the end, we will carefully line up the template with with this reference to mark the center of all our holes.
Attachment 120199
In case someone else finds this, and doesn't have a good quality original for comparison, here are all the measurements.
Main hole's diameter: 1"
Channel on upper hole: 5/8"
Center distance measured from lower screw center
Bottom hole: 0.840"
Channel: 1.860"
Top hole: 2.148"
these measurements put the top of the 5/8 channel above the center of the top hole, making it tough to drill them separately. I'll have to get the big one started, maybe 1" deep, then use a router to get the channel down to the same depth. Then, I can finish the channel's hole, and finally use the circumference of the main hole to guide guide my bit down. For this, the bottom edge of the channel becomes the reference point...it is 1.520 from the bottom screw's center. And of course the cleaning rod holes should be done first.
Cleaning rod hole diameters (not pictured): I think they are 7/32". A 15/64 rod goes in barely, a 1/4 does not at all. I think the holes are a little tired from the years. Does anyone have an original cleaning rod set and can mic the diameter for me?