Description
Somchem's S265 is a fast burn rate propellant powder, designated by a burn rate of 4.3, making it particularly suited for handgun and pistol applications. Its physical form is a fine-grained powder, allowing for consistent and precise metering when using progressive reloading equipment. S265 is renowned for its excellent temperature stability, ensuring reliable performance across a wide range of environmental conditions, which is a crucial attribute for competitive shooters and hunting applications. This powder is frequently paired with popular handgun calibers such as 9mm Luger, .38 Special, and .45 ACP, facilitating performance-driven load development. Handloaders will appreciate the ease of developing loads with S265, as its consistent burn characteristics help achieve target pressure levels efficiently. The powder's fast burn rate enables it to develop pressure quickly, delivering optimal performance in small to medium case volumes typical of pistol cartridges. Somchem's reputation in the handloading community further ensures that S265 is a trusted choice for precision and reliability in custom ammunition crafting.
Specifications
Burn Rate
6 (Medium-Fast)
Bulk Density
0.845 g/cm³
Density
1.600 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 S265
Verified load data combinations using Somchem S265.
.500 S&W Mag.
Rim Rock .5 | 500gr | Rim Rock LBT?WFN Gas Check 500gr
7 x 49 GJW
Barnes .284 | 100gr | Barnes Solid 100gr
7 x 49 GJW
Barnes .284 | 110gr | Barnes TTSX FB 110gr
7 x 49 GJW
Barnes .284 | 120gr | Barnes Solid 120gr
7 x 49 GJW
Cutting Edge .284 | 115gr | CutEdge ESP Raptor 115gr
7 x 49 GJW
Cutting Edge .284 | 118gr | CutEdge ESP Raptor 118gr
7 x 49 GJW
Cutting Edge .284 | 130gr | CutEdge ESP Raptor 130gr
7 x 49 GJW
Cutting Edge .284 | 133gr | CutEdge ESP Raptor 133gr
7 x 49 GJW
Federal .277 | 140gr | Federal Trophy Bonded 140gr
7 x 49 GJW
Fox Bullets .284 | 130gr | Fox Classic Hunter 130gr
7 x 49 GJW
Fox Bullets .284 | 145gr | Fox Classic Hunter 145gr
7 x 49 GJW
Frontier Bullets .283 | 130gr | Frontier PH HPFB 130gr
7 x 49 GJW
Geco .284 | 127gr | Geco ZERO 127gr
7 x 49 GJW
Geco .284 | 127gr | Geco ZERO LG 127gr
7 x 49 GJW
H&N .284 | 100gr | H&N RN HS 100gr
7 x 49 GJW
Hornady .284 | 120gr | Hornady V-MAX 120gr
7 x 49 GJW
Hornady .284 | 120gr | Hornady SP 120gr
7 x 49 GJW
LEE .285 | 130gr | LEE Mold C285-130-R 130gr
Subsonic Loads — Somchem S265
Verified subsonic load data combinations using Somchem S265.
.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
.300 AAC Blackout
Barnes .308 | 180gr | Barnes MRX BT 180gr
.300 AAC Blackout
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.300 AAC Blackout
Ferrobull Europe .308 | 180gr | Ferrobull Tripple Expand Jagd 180gr
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