.357SIG unsupported in Glocks?

D

DOCSpanky

New member
Since it is based on the .40S&W case, is the .357SIG unsupported like the .40 in a Glock?

I am still torn between the Taurus PT145, and the Glock32. But I know I can reload for the 45 making it a financial advantage, but the G32 is an absolutely sweet weapon with a sweet cartridge.

Though I'm not poor, I am far from rich, if I got the .357 would I have to buy all factory new ammo and chuck it after every use, or could it be reloaded for safely?

DOC
 
Yes, the chamber is unsupported. The brass can still be reloaded, but it won't last as long as brass from a fully supported chamber.
 
Glock 32 chamber unsupported?

My Glock 32 has a fully supported chamber. I have absolutely no problems reloading this round. Go to Glock Talk and you will find everything you need about this gun and round.
 
I've reloaded cases at least 7 times out of a Glock 32. At one time I had Glocks, SIGs, and H&k's all chambered in 357 SIG and the spent cases from all makes measured about the same.
 
I have a Glock 32 and a Glock 33 and have NEVER experienced a problem reloading the brass. I don't keep count (maybe I should) but I'm sure some has been reloaded 5 or more times.

BTW, www.natchezss.com has a pretty good deal right now on .357 SIG Blazer ammunition @ $7.80 per box of 50.
 
The Glock 357's have very well supported chambers. The Glock 357 Sig chambers are much, much better than the Glock .40's. That's because the Glock 357's and the Glock 9's use a 9mm bullet. Therefore, the 357 Sig feeding ramp does not have to be intrusive as it is with the other Glock calibers using fatter bullets.

357 Sig brass life using the Glock 357's is very good. I can get up to 10 reloads easily. One person I know has tested brass up to 20 reloads.
 
Pete ~

I love your website and info. I printed a copy and keep it sitting on my loading bench. I recently tried 13 gr. AA9 and will work my way up SLOWLY. The muzzle flash and concussion from my G33 w/ 9.5 gr. Power Pistol is horrendous to say the least, when firing inside!

By any chance, have you compiled any useable data on the 10mm?

E-mail me, if you want.
 
Sorry, I don't have personal info on the excellent all-around 10mm round. I prefer to play with the esoteric, mystical 357 Sig :)
 
.357SIG cartridges are more prone to bullet setback than straight-wall cases like 9x19, .40SW, .45ACP, etc.

Some earlier batches of ammo had this problem while the mfgrs "figured out" how to make a .357SIG cartridge that wouldn't blow up if you chambered it a bunch of times before firing.

It is a good idea, especially with .357SIG, to visually inspect rounds as you load them to make sure the bullet is not seated abnormally deeply.

Another test you can do is to take a caliber measurement of the overall length of a single cartridge, rechamber that particular cart. 10 or so times, and then measure its length again. If it loses more than 0.001", you might want to reconsider that particular type of ammo.

Also, it is more important to not chamber and rechamber .357SIG ammo, i.e.: the top round in your "carry" magazine.

-z
 
Another good reason to reload .357 SIG with 13.0 grs. of AA 9, is that it fills the case enough to virtually eliminate the possibility of bullet setback.
 
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