I have a single cavity Lyman 429244 mold that casts almost perfectly round. Wanting to increase production I recently bought a two cavity Ideal mold of the same number. I tried casting as it came and the bullets were .006” out of round. I then cleaned up the mold, removed any burrs and and high spots then reset the alignment pins. This time around they were .005” out of round. The cavity holes looked to be close to matching up with just a hint of stickiness when opening them so I'm sure I can't align the cavities any better. They produce well filled out bullets rather quickly so it is nice to use. My question is how out of round before losing accuracy. i should mention that the low end is .002” under what I need so I am concerned about leading. I will be using these in my Redhawk and possibly my Marlin 444. Comments are greatly appreciated since I don't have much time if I decide to return it. Thanks.
Robert Homan