Just cast my first boolits with my “new” ideal 358429 mold. Just wanted to check it, and another mold out. I bought this mold used from a forum member here. Well, I had 0 rejects. None. Perfect projectiles. The info I’ve found show it was to cast @ 170g. Mine weighed 173 and change. Abt. 2% off. I figured that was within expectations.
So, I tried out my brand new Lyman 429667. My first time casting for .44. Was expecting 240g, as listed. My boolits weighed 252-253g...??? 5% out!
I don’t keep too close an eye on my alloy. It’s made from a mix of mostly clip on wheel weights, along with some stick ons, a piece or 2 of monotype, tin, ... unscientific and rather inconsistent.
I’m a hobbiest and don’t take this too seriously. But I would like the input of some of you more “anal” casters. What would cause such a deviation from the advertised weight? Mold cavities out of spec? Too much ... ???... lead is more dense than tin and antimony... I’m baffled.