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Somchem · Extruded

S365

Ultra-slow extruded Somchem powder for the largest magnum cases.

Manufacturer
Somchem
Grain shape
Extruded
Burn rank
#73
Category
Medium-Slow
Temp sensitivity
Low
Application
Rifle
Origin
South Africa
Status
Active

Burn-rate position

FastestSlowest

Rank #73 on the burn-rate scale · Medium-Slow

Typical cartridges

.300 Winchester Magnum.375 H&H Magnum.338 Lapua Magnum

By cartridge

.300 Winchester Magnumalso used: Superperformance, N560, Norma 204
.375 H&H Magnumalso used: Norma MRP, MRP2, Tubal 7000
.338 Lapua Magnumalso used: MRP2, AR 2217, N570

Similar burn rate

#73N165Vihtavuori#73AR 2217ADI#73N570Vihtavuori#73N565Vihtavuori#73Alliant Reloader 22Alliant

Supply & handling

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

About this powder

Somchem S365 is a very slow South African rifle ball powder for large magnum and ultra-magnum rifle cartridges including .338 Lapua. Very limited US distribution.

ChartSee it on the burn-rate spectrumBrowseEvery powder, ranked by burn rate

Sources & provenance

  • ManufacturerSomchem — Somchem — published load/burn-rate data