Description
Somchem's S335 is a versatile rifle propellant with a medium burn rate, ideally suited for a range of calibers that require balanced pressure and velocity development. This extruded powder exhibits excellent metering properties due to its consistent granule size, facilitating precise, repeatable measurements crucial for tailored load development. S335 demonstrates robust temperature stability, ensuring consistent performance and minimized velocity variation across varying environmental conditions—an attribute highly valued by precision shooters. Typically paired with popular calibers such as .223 Remington, .308 Winchester, or smaller-capacity cartridges, this powder achieves optimal performance in full-length rifle cartridges where medium-range velocities and pressures are desired. In terms of load development, S335 offers handloaders flexibility in tuning loads for accuracy and performance, with reliable ignition characteristics that support clean and consistent burning. This powder's specific advantage lies in its adaptability to a wide array of rifle applications, making it a preferred choice for those seeking both versatility and precision. Somchem is well-regarded within the reloading community for its quality control and consistent batch-to-batch reliability, reinforcing the trust of reloaders worldwide.
Specifications
Burn Rate
5.2 (Medium)
Bulk Density
0.900 g/cm³
Density
1.610 g/cm³
Temperature Sensitivity
Low
Suitable Substitutes
Powders with a similar burn rate that may be suitable alternatives (also see burn rate chart):
Standard Loads — Somchem S335
Verified load data combinations using Somchem S335.
.17 Rem.
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem.
Hornady .172 | 20gr | Hornady V-MAX 20gr
.17 Rem.
Hornady .172 | 25gr | Hornady V-MAX 25gr
.17 Rem.
Impala Bullets .172 | 20gr | Impala LWHV LS 20gr
.17 Rem.
Impala Bullets .172 | 22gr | Impala LW CFN 22gr
.17 Rem.
Lehigh Defense .172 | 20gr | Lehigh Defense Controlled Chaos 20gr
.17 Rem.
Nosler .172 | 20gr | Nosler Varmageddon BTip 20gr
.17 Rem.
Nosler .172 | 20gr | Nosler Varmageddon 20gr
.17 Rem.
Peregrine .172 | 21gr | Peregrine VLR-4 21gr
.17 Rem.
Peregrine .172 | 22gr | Peregrine VLR-5 22gr
.17 Rem. Fireball
Berger .172 | 25gr | Berger Varmint 25gr
.17 Rem. Fireball
Hornady .172 | 25gr | Hornady V-MAX 25gr
.20 BR
Barnes .204 | 20gr | Barnes Varminator HP FB 20gr
.20 BR
Barnes .204 | 26gr | Barnes Varmint Grenade FB 26gr
.20 BR
Berger .204 | 35gr | Berger FB Varmint 35gr
.20 BR
Berger .204 | 40gr | Berger Varmint 40gr
.20 BR
Berger .204 | 55gr | Berger Varmint 55gr
.20 BR
Hornady .204 | 24gr | Hornady NTX 24gr
Subsonic Loads — Somchem S335
Verified subsonic load data combinations using Somchem S335.
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid OTM Tactical 230gr
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid Target 230gr
.30-06 Spring.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.30-06 Spring.
Hornady .308 | 175gr | Hornady Sub-X 175gr
.30-06 Spring.
Hornady .308 | 190gr | Hornady Sub-X 190gr
.30-06 Spring.
Lapua .308 | 200gr | Lapua Subsonic 200gr
.30-06 Spring.
MAKER .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets 200gr
.30-06 Spring.
MAKER .308 | 220gr | MAKER 300 blackout 220gr
.30-06 Spring.
Peregrine .308 | 155gr | Peregrine Subsonic 155gr
.30-06 Spring.
Reichenberg .308 | 154gr | Reichenberg HDB Subsonic 154gr
.30-06 Spring.
Reichenberg .308 | 200gr | Reichenberg Subsonic 200gr
.30-06 Spring.
Sierra .308 | 220gr | Sierra MatchKing 220gr
.30-06 Spring.
Styria Arms | AERO .308 | 95gr | AERO SUB-I,- smax:11.30 95gr
.30-06 Spring.
Styria Arms | AERO .308 | 115gr | AERO SUB,- smax:11.40 115gr
.30-06 Spring.
Styria Arms | AERO .308 | 190gr | AERO SUB,- smax:23.90 190gr
.308 Win.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.308 Win.
Hornady .308 | 175gr | Hornady Sub-X 175gr
.308 Win.
Hornady .308 | 190gr | Hornady Sub-X 190gr
Community Loads — Somchem S335
Sample load data calculated with Somchem S335.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .224 | 45gr | Rhino Solid Shank | 25.0 | 34.0 | 2.35 | 43.5 | 53,214 (91%) | 3691 | |
| .224 | 55gr | Prvi Partizan FMJ BT | 24.0 | 23.0 | 2.26 | 30.0 | 36,941 (67%) | 2848 | |
| .308 | 160gr | Hornady FTX L1.25 | 20.0 | ••.• | 2.55 | 45.0 | 49,748 (107%) | 2244 | |
| .308 | 160gr | Hornady FTX L1.25 | 20.0 | ••.• | 2.55 | 45.0 | 51,561 (111%) | 2221 | |
| .308 | 160gr | Hornady FTX L1.25 | 20.0 | ••.• | 2.55 | 45.0 | 49,559 (107%) | 2195 | |
| .308 | 160gr | Hornady FTX L1.25 | 20.0 | 29.5 | 2.55 | 45.0 | 47,442 (102%) | 2165 | |
| .308 | 160gr | Hornady FTX L1.25 | 20.0 | ••.• | 2.55 | 45.0 | 43,062 (93%) | 2152 | |
| .311 | 130gr | Impala LWHV LS | 23.6 | ••.• | 2.99 | 56.0 | 42,583 (80%) | 2707 | |
| .311 | 130gr | Impala LWHV LS | 23.6 | ••.• | 3.08 | 56.0 | 41,626 (79%) | 2700 | |
| .312 | 150gr | Hornady SP | 25.2 | ••.• | 3.08 | 56.0 | 46,383 (88%) | 2671 | |
| .312 | 150gr | Hornady SP | 25.2 | ••.• | 3.08 | 56.0 | 45,484 (86%) | 2657 | |
| .311 | 174gr | Sierra HPBT MatchKing | 23.6 | ••.• | 3.08 | 56.0 | 51,822 (98%) | 2546 | |
| .312 | 174gr | Hornady InterLock RN | 20.0 | ••.• | 3.08 | 56.0 | 48,762 (92%) | 2398 | |
| .312 | 174gr | Hornady InterLock RN | 20.0 | ••.• | 3.08 | 56.0 | 48,414 (91%) | 2392 | |
| .312 | 174gr | Hornady InterLock RN | 20.0 | ••.• | 3.08 | 56.0 | 45,701 (86%) | 2352 | |
| .311 | 180gr | Prvi Partizan SP BT | 9.4 | ••.• | 3.08 | 56.0 | 43,221 (82%) | 1811 | |
| .311 | 174gr | Sierra HPBT MatchKing | 9.4 | ••.• | 3.08 | 56.0 | 40,393 (76%) | 1798 | |
| .308 | 130gr | Barnes TTSX BT | 26.0 | ••.• | 2.76 | 54.9 | 52,286 (87%) | 2917 |
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