Do you ever trim 9mm cases?

Trimming can be because an expensive case has stretched or to ensure ultimate accuracy.

9mm is not a 1/2 MOA round, not ever, not in a million years and the brass is dirt cheap - range confetti.

Toss, mourn for one nanosecond, move on.
 
well do you ever measure it to see if a case has stretched?
no risk of pistol malfunction or overpresure like with a rifle?
 
Kryogen said:
well do you ever measure it to see if a case has stretched?
no risk of pistol malfunction or overpresure like with a rifle?
Click to expand...

9x19 has a max SAAMI pressure of 35,000 psi. .308 Win, .270 Win, 7mm Rem Mag - they're all over 60,000 psi. Stay within limits and a 9mm case will last almost forever. It's not subjected to the same forces. Things like head separations are so rare as to be invisible.

Now, if you double-charge, you'll know it...
 
9x19 brass will normally last for a long time yes but forever is definately not guranateed. If you go though enough fired 9mm brass you will find split cases, largely from work-hardening brass after many reloads. That said most 9mm will indeed be reloadable many times without special prep (I wash range pick-up brass, tumble when dry and reload)
 
When the neck splits or the primer doesn't hold in the pocket throw out the brass. No need to trim 9mm....ever.
 
I do zero prep work on my cases. They get inspected before being put in MTM cases and again when loaded in a mag. That is all.
 
When dealing with reloading it's always better to ask than to guess. My post was not meant to sound persnipity...
 
You must log in or register to reply here.
Back
Top Bottom