Depends on what you want to achieve. You could clay or make tin foil balls. People can get too aggressive and over mill heads. I'm a stocker with a bit of mill and lift.
Always something that when people post, I have some old heads and bolting them on. Well, but ya sure you know what condition your condition is in?
Old iron heads are capable of 8:1.
A good question for Ol Ron and others.
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