Description
Rottweil R 903 is a versatile propellant powder with a medium-slow burn rate of 1.9, specifically engineered for rifle loads. Its granulated physical form ensures consistent metering through powder measures, offering precision in charge weights and promoting uniformity in shot-to-shot velocities. R 903 is renowned for its commendable temperature stability, maintaining performance across a broad range of ambient conditions. Ideal for medium-sized rifle calibers, R 903 pairs exceedingly well with popular rounds such as the .308 Winchester and the 6.5x55mm Swedish. This powder's burn characteristics support efficient case fill, enhancing accuracy and repeatability, making it a preferred choice for both hunting and competitive shooting applications. When developing loads, R 903 allows for a wide range of experimentation due to its reliable pressure profile and energy output, accommodating a variety of bullet weights and types. Handloaders will appreciate Rottweil's long-standing reputation for quality and consistency, qualities embodied in R 903, ensuring dependable performance and improved barrel life.
Specifications
Burn Rate
4.2 (Medium)
Bulk Density
0.910 g/cm³
Density
1.560 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 — Rottweil R 903
Verified load data combinations using Rottweil R 903.
.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 | 40gr | Hornady V-MAX 40gr
.20 BR
Hornady .204 | 45gr | Hornady SP 45gr
.20 BR
Nosler .204 | 40gr | Nosler Ballistic Tip Varmint 40gr
.20 BR
Sierra .204 | 36gr | Sierra Spitzer (SPT) 36gr
.20 BR
Sierra .204 | 39gr | Sierra Tipped VarmintKing 39gr
.20 BR
Speer .204 | 39gr | Speer TNT 39gr
.20 Nosler
Berger .204 | 40gr | Berger Varmint 40gr
.20 Nosler
Hornady .204 | 40gr | Hornady V-MAX 40gr
.20 Nosler
Hornady .204 | 45gr | Hornady SP 45gr
.20 Nosler
Nosler .204 | 40gr | Nosler Ballistic Tip Varmint 40gr
.20 Nosler
Sierra .204 | 39gr | Sierra Tipped VarmintKing 39gr
.20 Nosler
Speer .204 | 39gr | Speer TNT 39gr
.204 Ruger
Berger .204 | 55gr | Berger Varmint 55gr
.22 ARC
Barnes .224 | 70gr | Barnes TAC-TX BT 70gr
.22 ARC
Barnes .224 | 77gr | Barnes LRX BT 77gr
Subsonic Loads — Rottweil R 903
Verified subsonic load data combinations using Rottweil R 903.
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid Target 230gr
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid OTM Tactical 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 — Rottweil R 903
Sample load data calculated with Rottweil R 903.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .243 | 90gr Hornady CX | 23.6 | 41.2 | 2.80 | 54.0 | 54,186 (90%) | 2999 | |
| .243 | 90gr Hornady CX | 23.6 | 41.0 | 2.80 | 54.0 | 53,374 (89%) | 2986 | |
| .308 | 136gr | Geco ZERO | 22.0 | ••.• | 3.34 | 68.2 | 54,259 (92%) | 2956 | |
| .308 | 136gr | Geco ZERO | 19.5 | ••.• | 3.34 | 68.2 | 49,124 (84%) | 2818 | |
| .308 | 165gr | Nosler Partition SP | 21.7 | ••.• | 3.31 | 68.2 | 54,462 (93%) | 2733 | |
| .308 | 165gr | Nosler Partition SP | 21.7 | ••.• | 3.34 | 68.2 | 53,388 (91%) | 2720 | |
| .308 | 168gr | Barnes TTSX BT | 22.0 | 50.3 | 3.22 | 71.3 | 47,398 (81%) | 2612 | |
| .308 | 180gr | Barnes TTSX BT | 20.1 | ••.• | 3.23 | 68.2 | 45,208 (77%) | 2408 | |
| .308 | 180gr | Barnes TTSX BT | 20.0 | ••.• | 3.27 | 68.2 | 44,135 (75%) | 2392 | |
| .308 | 180gr | Nosler Ballistic Tip | 25.6 | ••.• | 3.34 | 90.5 | 52,576 (84%) | 2818 | |
| .308 | 150gr | Hornady SP | 23.6 | ••.• | 2.80 | 56.0 | 56,101 (93%) | 2825 | |
| .308 | 150gr | RWS HIT | 23.6 | ••.• | 2.76 | 55.2 | 51,503 (86%) | 2815 | |
| .375 | 270gr | Swift A-Frame | 20.0 | ••.• | 3.60 | 107.5 | 58,929 (97%) | 2644 | |
| .228 | 71gr | RWS TMS | 24.8 | ••.• | 2.49 | 34.0 | 39,943 (83%) | 2782 | |
| .264 | 139gr | Fox Classic Hunter | 23.6 | ••.• | 3.02 | 50.0 | 46,760 (88%) | 2523 | |
| .264 | 139gr | Fox Classic Hunter | 17.7 | ••.• | 3.06 | 50.0 | 39,914 (75%) | 2326 | |
| .264 | 130gr | Swift Scirocco | 23.0 | ••.• | 3.23 | 59.0 | 51,155 (90%) | 2723 | |
| .264 | 140gr Hornady ECX | 23.6 | ••.• | 3.05 | 58.6 | 50,749 (90%) | 2621 |
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