Please /forgive my ignorance. I have three Lyman mold related questions. I am still trying to figure this game out and cast better bullets.
Question 1: I ordered a couple ONE-cavity molds, used, from eBay. One was .45 ACP RN and the other was .454 diameter .45 Colt.
Both of these were small molds, and did not work on my new Lyman handles (which work fine on two-cavity molds - they were marked as such on the box). One mould was an old “Ideal” mold.
I was under the (mistaken?) impression that the smaller handles were for two AND one cavity molds, while the larger handles were for 4 cavity molds. Are there even smaller handles for one-cavity molds, or are the older Lyman/Ideal one-cavity pistol molds smaller than the current ones? And if so, where would I buy handles for them??
Question 2: I cast about 200 .45 bullets from a new Lyman 452424 mold. I used mostly range lead, with some lead from other bullets and CWWs I tossed in, when I made ingots. The mold box and literature said they would weigh 255 gn. But they ended up being .451.5 to 452.0 diameter, which seemed small, and weighed only 250 gn. My Lee sizer barely made a mark on them.
Is it possible that the Lyman mold is THAT undersized? Or could my temperature fluctuations have caused that much “shrinkage”? I cast at SEVERAL temperatures to experiment with my pot and mould, trying to find the ideal temperature setting on my Lee pot. But the size and weight were consistently small for all the bullets.
This is a mongrel alloy of range lead, WW and some remelted lead bullets. But my .430 bullets are consistently “overweight” by 5-6 gns. which tells my I am using a higher percentage of lead.
Question 3: If the mold is undersized, can I enlarge it by coating a bullet in abrasive and spinning it in the mould, or will that just mess up the mould. I was hoping to get something over 255 gns and .452 diameter with this new mold.
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