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550 modifications

Whats with these aftermarket items to take the slop out of 550 Shellplate and Toolhead? Are they worthwhile? One would think that once the shell is in the die that would take away the play. Anyone in the know please jump in.

These products from non-Dillon sources tend to work as advertised and will take movement out of the shellplate and/or toolhead for those individuals that are convinced the movement adds up to a hill of beans(the cases push up on the dies/toolhead and remove the play anyway) and want to spend their money.

I added .010 brass shim stock at the base of the toolhead to reduce slop, this did reduce my OAL variance by .05 and it's alot cheaper than some of the other stuff

wait.. you have an OAL varience of 5 HUNDRETHS of an inch??  .05?  I'm assuming you mean .005 right?  Even that I'd be suprised at.  My 550 doesnt change more than .003 from round to round and usually within .001-.002.

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