Have any of you made your own powder funnel dies for the Dillon 550 press?...I need to make one so I can load some 50 GI rounds and 500 Linebaugh and I don稚 know of anyone making one for these calibers. I知 already set up with dies and shellholders. I have a machine shop so I値l make a few of them. Question...what metal alloy should I use to make the powder funnel sizing die. (Lyman M style) ??? Will I need to heat treat this after to harden it some??...I値l be making this on a Monarch EE manual lathe so I値l be using HSS or carbide insert tooling. Thanks in advance.