The problem with a progressive press is that it performs multiple steps simultaneously and is therefore impossible to isolate the individual effects of each step.
The sizing process runs up the ram up to a stop that is invariably different than what the seating die needs. Both are steps are to be performed to 1/1000 precision.
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"Socialized Medicine is the Keystone to the Arch of the Socialist State.” -Vladimir Lenin
"I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them." - Thomas Jefferson (An early warning to Obama care)
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