All the redding/RCBS rifle dies being used have the carbide (or whatever) replacement button assembly. The carbide button is floating by design.
When the original expanding button/decapping assembly was being used, it was set up by being loose until in the middle of expanding the neck (after the case was sized) , then tightened. Or the assembly was just left slightly loose. But am not using a progressive press.
Most of the rifle rifle loading accuracy problems i encountered were due to the neck being pulled off slightly, by not squaring the die to the force sizing it or not squaring up the seating die.
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