Now on the slugging part. What would be the best way to accomplish this with this gun? How about just using my calipers, would that work? Or should I use a round ball?
Here's how I would do it.
-Use a six-inch piece of 3/8" steel rod (cutting the head off of a 3/8" bolt works).
-Put a double wrap of electricians tape or duct tape around the rod at each end to protect the bore.
-Drop the rod down the
well oiled bore.
-Use one of the Great Plains bullets that's oversize to the bore and force it in nose first by tapping lightly with a hammer.
-Use a short dowel to move the bullet a few inches down the bore, again tapping lightly with a hammer, to get a good impression of the rifling.
-Hold the barrel at it's center point and tilt is back and forth like a See-Saw* so the bolt becomes a pile driver to drive the bullet back out.
-Measure the slugged bullet with your calipers to determine bore diameter and groove depth.
(* Keep in mind that liberals have decided that See-Saws are dangerous and have had them removed from play grounds. So wear a helmet when you do this.)