glock brass

[nwcatman]

how do i tell brass fired in a glock from the others? 40 s&w. thanks

[Jay870]

Once fired factory loads typically leave an obvious bulge at the base of the case.

Especially soft factory loads, or soft loaded hand loads may not exhibit the bulge.

[bkb0000]

is brass fired from a glock special?

[markm]

Just look at the primer. Glock fired primers are easy to spot.

[bkb0000]

Just look at the primer. Glock fired primers are easy to spot.

the rectangle?

so IS there something special about glock fired brass? not re-loadable or something?

[markm]

Nothing special to my knowledge. I know a G22 tends to bulge brass. But I reload my G17 brass all the time.

[nwcatman]

glock bbls. do not fully support the brass so it bulges when fired. my understanding is that you have to have special "thru" die to resize a brass case fully. si or no.

[Hound_va]

40S&W came out on the market around 1990. The special "thru" die came out on the market in 2009. Nearly 20 years went by with people loading 40S&W using conventional dies. Granted commercial operations used roll sizing equipment and the home reloader occasionally had brass that wouldn't pass a chamber check, but by and large people have successfully reloaded 40S&W brass fired from a multitude of non-fully supported chambered pistols. If you have to save each and every piece of brass then the "thru" die might be something worth the funds to you. Not all Glock fired 40S&W brass has a huge bulge that would prevent it from working in anything but possibly a match chamber when resized using most good quality conventional reloading dies. IOW, you don't "need" to have the "thru" die to load functional ammo for most service pistols.

[nwcatman]

cool. good to know. thanks.

[m4fun]

This is what you need if you do have the bulge or do a lot of "range" pick-ups. I use this for 9mm as well for all the subgun brass pickups.

http://egw-guns.com/store/index.php?main_page=product_info&products_id=40&zenid=45234d00e93d058156c5dfe6113a230a

[jepp2]

I have resized more than 10K of police once fired 40 S&W brass (most fired in Glocks). I find the Lee carbide die will size further down the brass toward the base than my RCBS carbide die does. Less than 1% fail to pass through my cartridge gauge. Those go through the EGW undersize die (it is just a Lee die that is .001" smaller).

So depending on which dies you have, it might not be worth getting the EGW die.

[Bimmer]

Just look at the primer. Glock fired primers are easy to spot.

+1 The firing pin strike is rectangular, not round.

My G22s don't bulge brass, ever. I've reloaded (and reloaded, and reloaded) for my Glocks for years with no special problems.

Bimmer

[Robb Jensen]

Used brass fired from Glocks, and reused it Glocks is never a problem.

It's brass that's been fired in Glocks then reloaded and used in pistols with tighter chambers say like 1911/2011s with match grade barrels that'll cause problems unless using the EGW undersize resizing die.

[markm]

+
My G22s don't bulge brass, ever.


Really?

I just noticed mine did this after owning it for years. I though I had an ammo issue. But I tried a different load and the same thing.

It's not really bad, but if I look close I can see it.

[MarshallDodge]

I had seen the bulge in .40 cases years ago when I was picking it up for my Sig. It was taken home and reloaded using Dillon dies and I never saw a problem.

Recently I reloaded a bunch for my M&P40 and had the same results, good accuracy and the gun runs just fine. On some of the cases you can see a small crescent shaped dimple where the bulge was but it doesn't seem to matter. I do feel more comfortable with the fully supported chamber in the M&P.