Here's my Lyman 225415 mold. I cast up a small handful of bullets this evening - and I'd forgotten how much of a PITA this mold is to use! I've had to beat the hinge pin in order to get the bullets to drop out of the cavities. In addition, the sprues want to stick to the cutter plate. Those have to be tapped, and sometimes pried off. I ruined a few bullets that had to be pried out of the opened mold blocks.
I use Bullplate as directed to lube the bottom of the sprue cutter, top of the blocks and the alignment pins and holes.
It looks to me that the blocks don't match perfectly. One is a couple thousandths above the other at the top surface. I think there could be some burrs in the cavities.
Should I maybe look into flattening the top of the blocks and the bottom of the sprue cutter. If so, how would I do that?
Can I polish out and de-burr the cavities? If so, how?
One cavity fins on the nose. I'll try to post some pics. Thanks in advance. These bullets shoot ok. But I think they can do better.
I like pics. Can you tell? See that shiny line in the first pic? I think that's where the sprue plate rubs which keeps the plate from sealing to the top of the blocks.