.357 SIG

ULTRA-TECH .357 SIG Ammunition.

Fast becoming a popular alternative to the 9MM for club shooter ULTRA-TECH offers three loadings of remanufactured .357 SIG ammunition.

.357 SIG – 158grn RNFP – IPSC MAJOR PF
.357 SIG – 185grn RN – IPSC MAJOR PF (STI / SVI PISTOLS ONLY)
.357 SIG – 140grn FP – IPSC MINOR PF

All our .357 SIG loadings come in 200rnd retail value packs with six boxes to the carton (1200rnds). We can also offer this in plain packaged 500rnd Bulk/Club boxes on request.

.357 SIG – 158grn RNFP – IPSC MAJOR POWER FACTOR

The newest and already the most popular in our line up is the .357 SIG loaded with the Westcastings Projectiles cast and coated 158grn RNFP loaded to IPSC MAJOR power factor. This load will operate in all standard .357 SIG pistols like the Glock and HS 2000 pistols.

.357 SIG – 185grn RN – IPSC MAJOR POWER FACTOR (STI / SVI PISTOLS ONLY)

Working with shooters requests and our projectile supplier Westcastings who created this projectile for our needs we developed a heavy weight .357 SIG loading for the STI / SVI Pistols for IPSC competition. The 185grn RN loaded longer that standard to make full use of the larger pistol frame and magazine of the 1911 / 2011 style pistols. This results in a soft recoiling load that still make IPSC MAJOR power rating with room to spare.

Above is our 185grn RN .357 SIG loading (IPSC MAJOR PF) for the STI / SVI pistols

Note: This load will only function with the STI/SVI type pistols due to its overall length.

.357 SIG – 140grn FP – IPSC MINOR POWER RATING

Our original loading and still popular with club shooters is the .357 SIG 140grn FP. Soft shooting and accurate this loading is idea for people wanting a IPSC MINOR PF loading and for those shooing in other club disciplines.

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ULTRA_TECH .357 SIG  – FAQ

What we hear from time to time…

“I hear your remanufactured .357 SIG ammunition uses .40 S&W brass? I thought you couldn’t do that?”

Yes, we do use .40 brass for our .357 SIG ammo. With the amount of surplus .40 S&W brass on the world market it makes for a cost effective alternative to new .357 SIG brass.  The only difference between factory .357 SIG brass and formed (from .40 brass) cases is a slight difference in length, the formed cases are shorter. Bottleneck cases in a pistol and forming brass is something new to most pistol reloaders and that’s where a lot of the myths and problems come from. When properly formed and using the correct loading techniques the difference between the cases is zero in real world firing. Our .357 SIG ammunition offers accuracy, value for money and reliable functioning guaranteed.