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Various case lengths
#5655218
03/17/15 07:58 PM
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Joined: Jan 2012
Posts: 159
4finger13
OP
Woodsman
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OP
Woodsman
Joined: Jan 2012
Posts: 159 |
I recently picked up quite a bit of 9mm range brass. After cleaning and resizing I found that the case lengths ranged anywhere from .738-.750. All of my manuals suggest trim size is .750
Should I trim down all the brass to the shortest one so I get a consistent crimp?
On another note I Googled my problem and came across a forum where people were saying that if you have to crimp your pistol brass then you have your dies set up wrong... any truth to this?
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Re: Various case lengths
[Re: 4finger13]
#5655308
03/17/15 09:15 PM
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Joined: Sep 2009
Posts: 18,951
ChadTRG42
THF Celebrity
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THF Celebrity
Joined: Sep 2009
Posts: 18,951 |
I'm showing a .754" as max case length. So, you are under the max length. I would just load them up and go. I would never trim a 9mm case, ever. It's not worth it, and the cases are plentiful. Plus, the chamber will allow a little more than a .754" case length anyway. Just load them up and go. On the crimp, the 9mm round, as well as many other non-bottle neck cases head space on the case shoulder, so a crimp is normally not needed. If you do crimp, it will be a taper crimp, not a roll crimp. I would not crimp.
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Re: Various case lengths
[Re: ChadTRG42]
#5655352
03/17/15 09:40 PM
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Joined: Oct 2006
Posts: 10,309
PrimitiveHunter
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THF Celebrity
Joined: Oct 2006
Posts: 10,309 |
Practice doesn’t make perfect. Practice makes permanent.
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Re: Various case lengths
[Re: 4finger13]
#5705168
04/17/15 07:35 PM
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Joined: Jun 2011
Posts: 321
wrknonit
Bird Dog
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Bird Dog
Joined: Jun 2011
Posts: 321 |
Keep in mind that 9mm headspaces off the case mouth so be consistent as possible for best results. and i dont crimp 9
Last edited by wrknonit; 04/17/15 07:36 PM.
always room for another buddy!
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