Sixshot would probably be your best source of information. Soft nosed cast bullets work just like a jhp but there is no chance of separation. You may shed a little lead but the core will continue to penetrate. Money, soft cast purchased or made usually cost less. I get 100 for what a premium jacketed cost, like an A frame. Adjustability, you can vary your softness to your fps or quarry. Run it a little faster and you get more mushrooming, run it a little slower and penetration increases. For me it's the ideal projectile with the best of both worlds.