Is S135 good for 5.56x45mm NATO?

S135 is commonly listed for 5.56x45mm NATO (burn-rate rank #44). Other powders reloaders use for 5.56x45mm NATO include Norma R1, S133, Shooters World Economy Rifle. Verify charges against a published load manual.

Is S135 good for .223 Remington?

S135 is commonly listed for .223 Remington (burn-rate rank #44). Other powders reloaders use for .223 Remington include Alliant Unique, AR 2205, A0. Verify charges against a published load manual.

Is S135 good for .308 Winchester?

S135 is commonly listed for .308 Winchester (burn-rate rank #44). Other powders reloaders use for .308 Winchester include N110, Shooters World Economy Rifle, Accurate 2230. Verify charges against a published load manual.

Lindcott Armory

Somchem · Ball

S135

Medium-fast Somchem rifle ball powder.

Manufacturer: Somchem
Grain shape: Ball
Burn rank: #44
Category: Medium
Temp sensitivity: Low
Application: Rifle
Origin: South Africa
Status: Active

Burn-rate position

FastestSlowest

Rank #44 on the burn-rate scale · Medium

Typical cartridges

5.56x45mm NATO, .223 Remington, .308 Winchester

By cartridge

5.56x45mm NATO also used: Norma R1, S133, Shooters World Economy Rifle

.223 Remington also used: Alliant Unique, AR 2205, A0

.308 Winchester also used: N110, Shooters World Economy Rifle, Accurate 2230

Similar burn rate

#44Vectan A1Nobel Sport #44A1Vectan #44Winchester 748Winchester #44N120Vihtavuori #44Ramshot TACRamshot

Supply & handling

Availability (US): Limited
Shortage-prone: No
Suppressor-friendly: Yes
Flash-suppressed: No

About this powder

Somchem S135 is a South African medium-fast rifle ball powder for .308 Win and similar cartridges. South African military and competition standard. Minimal US distribution.

ChartSee it on the burn-rate spectrum BrowseEvery powder, ranked by burn rate

Sources & provenance

Manufacturer Somchem — Somchem — published load/burn-rate data