Trimming 10mm auto brass

[johncmng]

Do I need to do it?

[Colt562]

I don't trim pistol brass, but I've only reloaded for about 2 months, although I know some that have never trimmed 10000+ pistol brass

[Munk]

Nope.

[Bill Steele]

If you are doing pass through sizing and you start having problems with your gun failing to go into battery, then you may need to trim. I have not run onto this myself, just talking possibilities.

[bobomb]

not likely even after 20 reloads

[sammy]

i have never trimmed pistol brass. I found one so worn the head stamp could not be read and it was actually shorter than factory.

[MIAMIbaseballer]

No need to trim 10 brass

[kmca]

i have never trimmed pistol brass. I found one so worn the head stamp could not be read and it was actually shorter than factory.

You'll probably find that's true with most pistol brass.

[Paper Boy]

Nope, I don't trim pistol....

[Revoman]

I have found that sometimes buying new brass, it's a little on the long-side, so I trim all new, never fired brass.

I have heard many times that it's not necessary for handgun brass, yet I trim all of my loads. But I also like all of my rounds crimped as identical as possible. It's just me.

If there is an issue with accuracy I wanna make sure that it's me and not my ammo.

[prob]

i have never trimmed pistol brass. I found one so worn the head stamp could not be read and it was actually shorter than factory.

I'm with this guy. I've NEVER trimmed pistol brass and I've been loading for a looong time.

I have found that sometimes buying new brass, it's a little on the long-side, so I trim all new, never fired brass.

I have heard many times that it's not necessary for handgun brass, yet I trim all of my loads. But I also like all of my rounds crimped as identical as possible. It's just me.

If there is an issue with accuracy I wanna make sure that it's me and not my ammo.

This is just way too much work. Not to mention how easy it is for pistol brass to get lost.

[Mstnpete]

Likewise...I never trim pistol brass.

[Sunday]

I have never trimmed straight wall cases. Get a reloading manual and a caliper and measure the cases if there is a question on the length.