Home Forums Reloading Handgun Reloading 10mm Brass

I have a Glock gen4 model 40 that I just started reloading for. For you guys that reload 10mm how many times do you reload your brass before you toss it? I’m using 9.2gr. of Longshot for my loads.

Depends on the load. How hot is it?

I’m using 9.2 gr of Longshot under a 180 nosler hp.

So that is close to max. Given that you're using good quality brass 5 or more loadings is not completely out of the question.

Thanks for your help Fotis.

I’m loading 9.2grs of Longshot and a 180 xtp in my model 20. After 5 loads I toss them.

That’s probably what I’ll do also.

Good information. I am just starting to load for the 10mm. I plan to start as soon as I knock out 600 rounds or so of .45 acp.

Guys, toss them after the primer pocket expands. If they pass your brass inspection (cracks, split necks etc.) they are gtg. If the primer pocket starts giving then it is done.

I load them 4 times with full power loads and then relegate them to lighter practice loads. They last a long, long time at .40 S&W velocity.

I've been collecting range brass and sorting it by head stamp. Are there any brands I should avoid?

I have a bunch of new Starline 10mm brass, but I'd hate having to chase it down and find it. I want to load a bunch of practice ammo with range brass, so I don't go home heartbroken when I can't find it all. :-)

Underwood and Grizzly 10mm brass toss it in the trash can.
This is grizzly brass I picked up with a bunch other 10mm I ran it through sizer die then lee bulge buster and this is the end result. For those not in the know this is what happens when shooting full power loads in a unsupported chamber the Infamous 10mm bulge. You will not see this when you pick it up, you need to run it through a bulge buster, to see this..

I found a bunch of starline 10mm brass at the range the other day. Was supposedly once fired. I'd be pretty leery about loading it up for a second time in an unsupported chamber, such as a glock.

The only problem brass has been Underwood and grizzly they load that 10mm to the limits with 220 hard cast. The Sig, Winchester, r-p and starling brass been fine. Also measure the case base/webbing if it’s over .430 chuck it. If it measure .427-.428 or so it’s fine.. that grizzly stuff was well over .434

Good info as I'm getting into the Glock 20 game. Gen 4. Have Underwood on order and also have brass and bullets to load. I don't expect to push limits at all.

Will add if the Underwood or grizzly been shot in a fully supported chamber then it’s probably fine. But majority of Glock owners don’t run Storm lake, kkm, bar-sto or lone Wolf barrels.

A guy at my club has a beautiful Ruger 1911 10mm. Sweet pistol that I've shot and doesn't tear up brass like the glocks do..

On the new Gen 5 barrels Glock has tightened up the chamber specs/dissensions.

I’m not much of a 1911 guy anymore but a 10mm in the ruger 1911 be nice along with a 38 super in a colt..

This, I always end up getting my pistol brass mixed up eventually and can't remember which case has had how many loads. Just inspect them and if they look good and the primer stays in they're good. However. I know I've had starline 10mm brass work past 5 loadings. I don't know that I've ever taken one past 10 but I load my 10mms to 10mm speeds.

Bb