Do you need to trim 9mm brass?

micksis86 · December 6, 2009, 06:23 PM

Do you need to trim 9mm brass?
Looking at a few videos of people loading 9mm on progressive presses and trimming is never mentioned.

DiscoRacing · December 6, 2009, 06:33 PM

nope

BRAVO1NINER · December 6, 2009, 06:37 PM

I do, but I'm crazy anyway !!!!!!!!

BRAVO1NINER

**Shane Tuttle** · December 6, 2009, 06:45 PM

Only if it's longer than SAAMI specs...

freakshow10mm · December 6, 2009, 06:57 PM

Trimming handgun brass is a complete waste of time.

wncchester · December 6, 2009, 06:59 PM

"Only if it's longer than SAAMI specs... "

The correct answer. And that's rare.

mongoose33 · December 6, 2009, 07:08 PM

I never have. Talking about several thousand 9mm rounds to this point, all of it with used cases.

Ozzieman · December 6, 2009, 07:19 PM

I have 9mm brass that has been reloaded so many times I have lost count, ok I don’t keep count.

I shot until the top of the case cracks.
One reason I don’t have to trim length is I don’t load to +P levels. I reload to mid load levels which keeps the stress and case stretch down. Maybe I am making a mistake but I don’t even measure brass length for autos. I spend more time inspecting cases for damage or cracks.

December 6, 2009, 06:23 PM	#1
micksis86 Senior Member Join Date: June 16, 2009 Posts: 420	Do you need to trim 9mm brass? Do you need to trim 9mm brass? Looking at a few videos of people loading 9mm on progressive presses and trimming is never mentioned.

December 6, 2009, 06:45 PM	#4
Shane Tuttle Staff Join Date: November 28, 2005 Location: Montana Posts: 9,443	Only if it's longer than SAAMI specs... __________________ If it were up to me, the word "got" would be deleted from the English language. Posting and YOU: http://www.albinoblacksheep.com/flash/posting

December 6, 2009, 06:33 PM	#2
DiscoRacing Senior Member Join Date: December 19, 2008 Location: milton, wv Posts: 3,640	nope

December 6, 2009, 06:37 PM	#3
BRAVO1NINER Member Join Date: August 30, 2007 Posts: 30	I do, but I'm crazy anyway !!!!!!!! BRAVO1NINER

December 6, 2009, 06:57 PM	#5
freakshow10mm Junior member Join Date: January 23, 2008 Location: MI Posts: 1,398	Trimming handgun brass is a complete waste of time.

December 6, 2009, 06:59 PM	#6
wncchester Senior Member Join Date: December 1, 2002 Posts: 2,832	"Only if it's longer than SAAMI specs... " The correct answer. And that's rare.

December 6, 2009, 07:08 PM	#7
mongoose33 Senior Member Join Date: June 23, 2009 Location: Wisconsin Posts: 228	I never have. Talking about several thousand 9mm rounds to this point, all of it with used cases.

December 6, 2009, 07:19 PM	#8
Ozzieman Senior Member Join Date: December 14, 2004 Location: Northern Indiana Posts: 6,117	I have 9mm brass that has been reloaded so many times I have lost count, ok I don’t keep count. I shot until the top of the case cracks. One reason I don’t have to trim length is I don’t load to +P levels. I reload to mid load levels which keeps the stress and case stretch down. Maybe I am making a mistake but I don’t even measure brass length for autos. I spend more time inspecting cases for damage or cracks.