Lee 429-200-RF is a fine plinking bullet from any 44. Cast mine from wheelweights, tumble lube, shoot unsized in several 44s over Trail Boss or Unique. Simple and 6 will go in 3" @ 25 yds with "hands on the bench". Never lead a bit. 6 gr trailboss gives a tad under 900 fps in the 44 magnum.

Lee molds are so inexpensive, I doubt remachining yours is worth the effort.

Cheaper than 22 RF at today's prices.