I often see how the Wilson bullet seater used in conjunction with an arbor type press can give decreased bullet runout vs a typical screw-in die in standard press. I am wondering why that it. If using something like a Redding or Forster bullet seater, it seems to me it would hold everything pretty straight. Really any better than the Wilson? If so, how?
I also wonder about this with regards to my Forster press. The dies don't screw in, they can move in a horizontal plane as they please. In addition, the case can move the same way due to the design of the case jaws on the press.
I get a fair amount of bullet runout on my Forster press, but the necks are also tweaked, no doubt due to at least in part, the fairly severe neck sizing going on with the Redding FL die and expander I have. Going from .239" to .248" by way of the expander is quite a bit (223 Remington).
Phil
I also wonder about this with regards to my Forster press. The dies don't screw in, they can move in a horizontal plane as they please. In addition, the case can move the same way due to the design of the case jaws on the press.
I get a fair amount of bullet runout on my Forster press, but the necks are also tweaked, no doubt due to at least in part, the fairly severe neck sizing going on with the Redding FL die and expander I have. Going from .239" to .248" by way of the expander is quite a bit (223 Remington).
Phil