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Posted: 6/27/2008 9:23:29 PM EDT
Hey folks, I am working on my first batch of 100 cases for reloading this weekend. I am using my new Possum Hollow trimmer and love it. I wanted to know if there are any guidelines as to how much debur and chamfer is required before loading. I know if I do too much it brings the case mouth to a pretty sharp knifepoint, and I assume that inst a good thing. Thanks for the input with my newb question
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I figure...... Too much: And, you got a sharp edge (dangerous while re-loading) or maybe you even shortened the brass length, throwing off the trim measurement for bullet crimping consistency. Too little: Why did you bother at all? You just need enough: So that, the outside bur is removed (eases chambering). And, enough on the inside so that, you help with starting the bullet into the case without getting "hung up.". Aloha, Mark |
| Ditto the above. Just try to have a smooth edge of the mouth with no burrs or raised marks that could effect how the neck lies in the chamber which could effect accuracy and high marks inside that could effect bullet alignment and cut into the bullet shaving off copper when seating. |
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Just a light touch with the deburring tool to remove the burr is all that's needed, look at the last 2 pics here www.ar15.com/content/page.html?id=407 The Giraud trimmer puts a VLD type chamfer on the inside (20 degrees or something) giving it a sharper edge but it doesnt hurt anything %20(Small).jpg)
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