I have been trying, without much luck, to drill perfectly centered hollow points in some semi and full wadcutters. Mostly I'm getting wander and runnout and ended up throwing the whole bunch back into the production pot.
I would really like to get my mould professionally converted, but I am a "broke college student" and $80 or so for that service is out of reach at the moment.
I read a while ago on the web about a guy who modified his mold by machining a piece of steel to the exact dimensions of this boolit. Then he used a lathe to bore a hole EXACTLY centered through it.
I thought this was clever--he then used the hole through the steel boolit to index and align drilling the hole through his mold, so the HP pin would be exactly axial with the boolit. He bored the hole, then made a pretty standard looking HP pin to fit it.
(of course if I could afford a mill, I would afford to get my mold professionally converted!)
Do you think I could do a similar conversion, using a regular cast boolit instead of steel? I have an aluminum Lee mold, so it seems like if I could get the hole started in the right direction it would be easy!
Lacking a mill, I was thinking I could chuck the boolit in a drill press after using the same press to align a drill bit and clamping it into a machinist vice. In theory, if the boolit was turning axially the hole would come out perfect even if the drill bit was slightly off center.
I'm pretty good with (basic) fabrication and was able to use these primitive tools to build an AK a while back. Of course the AK isn't known for it's perfect tolerances!
Has anyone done a home HP conversion? I'd be interested to hear successes as well as failures. The mould was pretty cheap, but it makes nice boolits so I would hate to destroy it doing something stupid. (Like taking a drill press to it probably is!)