I just received this mold after several folks recommended it on the Single Action Forum:

https://www.mp-molds.com/product/mp-45-270-saa-hp-4cav/

It casts a copy of the RCBS 45-270 SAA that drops .454 and 288grs from 16-1 alloy out of my mold.

I ordered it on a Tues and it was at my house the next Mon. I was a little nervous ordering it as it comes from Serbia but was really impressed with the communication and service. I would order another mold from them.

Gives you the option of casting a solid and three different HPs with a simple change of the pins. I believe Lee handles will fit but I ordered a set of theirs.

Very good quality and price.