Hey Pard...congrats on the Winny.
Use and old casters trick to use the pb bullets...just turn a gas check cup side toward the powder. This is documented in the NRA cast bullet manuals from the 80's. I learned it from my old man back when I started in the mid. 50's. Back then you just couldn't afford to buy molds willy-nilly, you had to make do with what you had.
As a caster you should have the NRA manual & the suppliment...if'n you don't, go get them.
Here's how...
Insert the check sideways after you pour the powder. Turn it as close as you can into the case cup side down toward the powder, but don't worry if you can't seat it. Let the boolit seat it in the die. It should be up against the boolit base with no air inbetween. In the nra manual there are reports where better accuracy was obtained than with a check up on the boolit. My experience is that leading was eliminated regardless of the velocity & boolit type, hardness notwithstanding. Accuracy in certain loads was better than with the check attached to the projectile. Start as always about 10% below max. & work up.
I would be interested in your results...just think, any boolit you want can be used using this method along with good boolit fit in the throat (ball seat) & at any reasonable velocity.
It just gets better & better Pard...
LB
