Sounds like a good way to go.
At rifle velocity, you'll get plenty of expansion with a flat nose, don't need a hollow point.
Once you get below about 1500-1600 fps you'll need some sort of hollow point for expansion, and if the cavity is wide enough it can work down to 600-700 fps. With wheelweights, a cone shaped hollow point cavity performs better than a cup shaped cavity, unless you're looking for fragmentation.
