357sig tips n tricks?

[guns3738]

I just got a Glock32 .357Sig and wanted to know if any has found any interesting little tips or tricks for reloading this cartridge. Or maybe you got a load you could share. I'm thinking of getting rcbs dies but open to suggestions. Let me know.
Thanks.

 

[Taroman]

Here's a good start.
Read all this.
I was given a 40MM ammo can full of once fired brass.
To get proper headspace, I had to mill .015" from the bottom of my RCBS sizing die.
Be aware that the Speer flash holes are very small.
You will likely have problems decapping along with sizing with your RCBS die.
I decap first with a Lee universal die with a smaller pin.
Lube cases before sizing with Hornady One Shot in a gallon baggie.
Pay close attention to neck tension and be sure that bullets cannot be pushed into the case!
many 9mm bullets are not suitable as they don't have parallel sides.
Enjoy your 357 Sig experience!

 

[guns3738]

Thanks for the info man

 

[Elkins45]

To add to the excellent advice so far: you need to select bullets carefully so they get sufficient neck tension. Another tip that has been useful to me is to select powders that completely fill the case. That means there's no room in the case for bullets to get set back and drive up pressures. I'm a huge fan of AA #9 for that reason.

 

[JimKirk]

Longshot, AA#9 are good powders ... My favorite load for a Glock 31 is Longshot & the Hornady 124 gr XTP ...

Tip for the Speer brass ... pull your deprime stem and chuck it up in a drill ... sand it down the deprime pin a little and it will be fine with the small primer holes ...

 

[vaalpens]

I think most 357sig reloaders have their own unique process to get to the right confidence level when loading 357sig. To summarize, I would say the following are the most imporatnt to me:
-Pick a suitable bullet
-Neck tension
-Attention to detail
-Stick to your process that works for you

My reloading process for 357sig is the following:
-Decap with Lee universal
-Clean cases wash/tumble
-Resize with Lee 40S&W resizer
-Little bit of Unique lube and debulge with Lee 40S&W FCD
-Resize with Lee 357sig resizer
-Expand with Lee 357sig expanding die
-Seat with Lee 357sig seating die
-Crimp with 357sig FCD

I sort all my 357sig brass by headstamp and length. Sorting by length is so I don't have to trim the brass and I can have a more precise belling and crimping due to a uniform length.

Good luck and be safe.

 

[Patocazador]

When I worked up loads with AA#9, they turned out to be the least accurate and the dirtiest loads I tested.

Longshot is a very good powder and VN350 isn't bad either.

 

[Taroman]

Have never seen Accurate branded powders here.
Going with what I had, Blue Dot is great in 357 Sig.
Pretty impressive fireballs, too.
Tip on Lee FCD is a good one.
Just get one.

 

[dewey7271]

FCD is a great tip.
I don't bell the necks on the 357 Sig and have done fine through quite a few loads.
For carry, I load the 124 Speer Gold Dot with AA 9 (around 13 gr) CCI primers.
I also sort by headstamp. Ensures some consistency at least.
Just for messing around, most of the 124 gr bullets either HP or flat point work ok.
I had an 800x load for the Sig but can't really recommend it as that powder is a little touchy due to bulk.
As mentioned before Longshot is good but AA 9 will give you the speed if that's what you want.