While I have 3-4 years casting experience, I've only recently begun casting Minies. The first molds I got (Lees and an RCBS) have the 'core plug' or 'base plug' attached to the mold, so it's not a lot different than casting "regular" bullets. I just got a Lyman 575213OS and it has a the core plug on a wooden handle. I casted a few bullets with it, but I'm not sure I'm doing things properly.
1. How tight should the screw be on the bottom that the "E" Ring fits under? There was quite a bit of clearance (Several thousandths) as it came. I did not tighten it up, but I could see that affecting bullet weight (Length).
2. Is it OK to rest the mold assembly on that wooden core plug handle while filling with a bottom pour pot? Doing so put the mold at right about the right height under my Lee bottom pour. I also thought it might help hold that core plug "E-Ring" up against the bottom of the mould. However, if I'm not careful, it seems to rock the core plug off to one side ever so slightly. If I hold it up, the core plug hangs on the "E" Ring which almost certainly makes it hang off centered, as it is supported on only one side.
3. What is the proper sequence of opening the mould after cutting the sprue? I tried twisting the core plug until the opening in the "E" Ring lined up with the screw and removing the core plug before opening the mould, but this just seemed 'wrong'. Next I tried opening the mold while holding onto the knob and just letting the bullet fall out. This worked well enough, but occasionally, the bullet would stick to the core plug. Next I tried just pulling and/or rocking the core plug before opening the mould to help break the bullet loose from the core plug to ensure if would just fall away when I opened it. Of course, this wouldn't work if the answer to Number 1 is that the screw needs to have hardly any clearance on the "E" Ring.
Thanks in advance for any advice or suggestions.