.357 Sig

[renaissance]

Loading 357 Sig for the first time.

Recommended:
Bullets?
Powder?
Dies?
Crimp?

Load Data?

Advise?

 

[antsi]

Powder: 357 SIG seems to work best with medium-slow or slow powders. I like AA#9. It will fill or nearly fill the case, thus helping to protect against setback.

Crimp depends on bullet type. If plated, crimp lightly. If jacketed, crimp firm. Either way, I crimp just enough to withstand the "thumb pressure setback test."

Be careful not to over-bell. Just a kiss of belling enough to let the bullet in to the case mouth.

Not all 9mm bullets will work for 357 SIG. The typical 9mm FMJ with a long tapered ogive will not seat properly. Most 9mm JHP's will work. What you need is a bullet with most of its mass in the area that is full bore diameter, and a shorter/sharper ogive. To be safe, you can get bullets specifically made for 357 SIG. Ranier and Speer both do. Personally, I like the inexpensive bulk 9mm 147 grain JHP's from Remington you can get from Midway.

 

[JiminCA]

This guy's site is a wealth of info:

http://www.handguninfo.com/Archive/www.Pete-357.com/

I use AA#7 with 124 flat point bullets. You have a short engagement surface in the neck of the case. It is important to get your bullet pull and crimp right because you really don't want that bullet sliding back into the case.

 

[oldman]

antsi,

Wonder how 9mm Gold Dot bullets will work for the 357Sig. For some reason I bought 5000 Gold Dots in 9mm and 3000 in 38special (which I no longer have). The 9's have been sitting around for about 5 years and I figured it's about time I put them to use. Either as 357sig in my 239 or in my Walther P5 but first I have to find my loading dies. Isn't this sad? Wonder if anyone else has ever bought anything and never used it.

 

[Big Daddy]

oldman

If you hava all of those gold dots for the 38 special and are not going to use them drop me an email to [email protected] I'd like to take them off your hands if you can make a deal.

Josh Denny