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Do Dillon Carbide Sizing Dies Have a Smaller I.D.?


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I bought a carbide 30-06 sizing die with the goal of better case sizing consistency due to the lower friction. I was using it for the first time last night and it destroyed the three cases I attempted to size, with one of them getting stuck. I know that dies are tapered but the ID is .005" smaller than my steel die. Is this a defective die? I use Imperial sizing wax.

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Yeah I can't believe I did it three times. It was actually extruding brass out the bottom of the die. I've got a machinist checking it against a steel one with tools designed for measuring parts with tapered bores.

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New die sent by Dillon doesn't shave the cases but makes a "ridge" above the extraction groove on every case. The internal dimensions of the two carbide dies are clearly different than the steel die. I sent them both back along with some of the cases I had sized and some unfired cases. Going to punt on the carbide dies for now and stick with the steel.

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