Originally Posted By: cottonstalk
RT there's an older article by Ross Seyfried where he explains the idea behind soft nosed cast but I can't remember where.

I think the article was in handloader magazine. I have it somewhere. Next week I can hunt it down. He describes how you make the nose out of pure lead. Pure lead will expand at the velocity we shoot at.
The base of the bullet is made out of water dropped wheel weights, and it is much harder. If the bullet meets extreme resistance, the nose will expand widely, and the harder shank will continue to penetrate after the nose breaks off. Kinda like a nosler partition rifle bullet.
He said that the softnose cast will group the same as regular bullets made out of one alloy. I can send a copy next week if anyone would like one.