Thread: Trimming 9mm?
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Old 11-10-2011, 10:33 PM
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Sebago Son Sebago Son is offline
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Lightbulb Case Trimming

Quote:
Originally Posted by fredj338 View Post
I've never trimmed a service [istol case, never. I do trim magnum revolver cases now & then to keep the roll crimp uniform. If you never shoot near max loads, they probably never need trimming either.
I'm with Fred on this one...

I'd rather have my toe hairs pulled out one at a time with a dirty Leatherman by a 300 pound liberal she-bear than trim autopistol brass.

I only trim revolver rounds and then, only in the magnum chamberings to keep the mouth case square and the roll crimp pressure consistent.

In so doing, I have of late changed over from a rotary trimmer to trim dies. I find that using this method is not nearly as odious.

But by far the best ways to eliminate the need for trimming brass is to keep lots together by brand and numbers of usages. Replace with frequency, buy in larger lots and only buy brass that has no channelure as this promotes rapid, inconsistent case length changes as the channelure 'irons out'.

Drew
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