Yes, I have, but didn't find an application where they worked better than ww alloy for my uses.
I experimented with pure lead (coated and not) in 300 Blk subsonics; the round nose and SP designs didn't give any significant expansion, and my hollow point molds were already designed for ww alloy.
In handgun rounds, I always got better accuracy with ww alloy than pure lead, and am using hollow points designed for that alloy anyway.
