Lyman 4500 lubsizer vs heavy cast bullet

I think that you can get dies up to about .512 so it should handle that ok. The 4500 is a tougher looking unit than my old 450 and that handles quite a bit of force.

If its taking a huge amount of effort you need to either find a mold closer to the final size or run them through a series of decreasing dies to get to where you want them. More than 5 or 6 thou and I would think that they would be getting pretty deformed though.
 
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