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Old December 8, 2018, 07:14 PM   #12
Senior Member
Join Date: September 12, 2015
Location: Issaquah WA. Its a dry rain.
Posts: 1,765
Different manufacturers have different length brass. If you want to use mixed head stamp brass across you loads then yes you should trim. If you separate head stamps into different lots and adjust to each lot you shouldn’t need to BUT, I have found brass that was very out of square at the case mouth. Trimming will alleviate this if the brass remains long enough to be at spec.

I use any 44 mag brass that is to short and cut it down to 44 special length.

So yes, depending on your objective (consistent crimp) and how fastidious you are trimming can be necessary. But once a peice of brass is trimmed you most likely will never need to trim it again.
Just shoot the damn thing.
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