Man Ron, that's really interesting. I have something like 700 of those bullets out in the garage and hardly shoot my .45 ACP any longer. I've often thought about doing exactly what you did by trying to hollow point them with a regular drill bit and drill press. But figured consistency would be crap.

What did you use to get that neat clean cavity?

Did you weigh and sort the bullets after the operation, and if so, what kind of consistency did you get?

Performance of that recovered hollow point sure indicated it would work fine on game if you can get hunting accuracy out of it. Do you plan to do a normal five grain increment load trial to see if you can find a decent load?