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Old April 6, 1999, 12:14 PM   #17
Rew
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Join Date: March 3, 1999
Location: Colorado Springs CO. USA
Posts: 36
Well, I'll throw in my .02 worth. if you look at a drawing of the .45ACP case the case mouth is .473"/12.01mm while the case just in front of the grove is .476"/12.09mm making the .45ACP a very slighty tapered case. In a match chamber you are putting this tapered case into a tapered chamber. I think Mr. Browning intended the case to headspace on one or more of the three. Mouth, extractor, and taper. Now I no longer own an Auto in .45ACP but I trim my cases every 3 loads for my S&W 625 and have never had a problem with headspace with or with out the clips.

Rew
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