Poll: Best mould material

[SgtDog0311]

I'm about to find out how I like the iron vs the aluminum. I have only four molds, all alluminum but about to buy the RCBS 35-200 and those are cast iron I believe. I'll report back with my limited experience. John

[krems]

I own a number of moulds both commercial and custom. I have casted with Iron and aluminum extensively but have limited casting with brass. I voted for aluminum because of the calibers I cast for the most. I love to shoot my 500 linebaugh and 45 colt handguns. I like the aluminum because I can cast longer w/ out the mould overheating. With iron moulds I have a hard time casting the big 500l bullets w/ out frosting w/ lyman #2 alloys and a bottom pour pot. Now If I was casting the big Black Powder style long range 40-45-50 caliber bullets w/ 30-1 alloy and a ladle I would be using iron moulds only ( never tried brass for these) as I can control the mould temperature better and quality is more important than quantity. Brass-Iron-aluminum moulds all have their advantages depending on the alloy, weight of bullet, casting style (ladle vs bottom pour), and melt temperature you are casting at.

Krems

[oscarflytyer]

Never cast with Iron. Alum molds I have work great. Have a 4 cavity brass that casts great, but it drops 4x 255 gr Keith bullets and beats my poor old repaired rotator cuff shoulders to death!

[Rick45Colt]

I currently favor my Mihec Brass and a Lyman steel as a close second. The aluminum molds that I have seem really touchy.

Rick45Colt