Load Specifications
Load data in caliber .33 Win. with .338 | 230gr | Norma ORYX bullet and 52 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and Bofors RP3.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 38,377 psi | 87% | 2149 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 39,682 psi | 90% | 2231 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 39,233 psi | 89% | 2231 fps | 99.1% |
| Accurate 4064 | <<locked>> | 92% | 39,552 psi | 89% | 2254 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 40,016 psi | 90% | 2234 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 39,697 psi | 90% | 2201 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 84% | 37,956 psi | 86% | 2211 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 39,334 psi | 89% | 2247 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 39,363 psi | 89% | 2310 fps | 96.6% |
| Bofors RP3 | <<locked>> | 92% | 38,696 psi | 87% | 2251 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 39,842 psi | 90% | 2165 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 86% | 39,871 psi | 90% | 2264 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 84% | 37,724 psi | 85% | 2198 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 38,435 psi | 87% | 2257 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,055 psi | 77% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 39,059 psi | 88% | 2208 fps | 96.9% |
| IMR 3031 | <<locked>> | 86% | 38,638 psi | 87% | 2247 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 38,667 psi | 87% | 2244 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 84% | 39,697 psi | 90% | 2201 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 86% | 37,869 psi | 86% | 2218 fps | 98.9% |
| Lovex S060 | <<locked>> | 84% | 38,827 psi | 88% | 2142 fps | 96.2% |
| Lovex S062 | <<locked>> | 90% | 39,552 psi | 89% | 2218 fps | 97.9% |
| Norma 201 | <<locked>> | 86% | 39,175 psi | 89% | 2195 fps | 97.8% |
| Norma 202 | <<locked>> | 86% | 39,044 psi | 88% | 2211 fps | 99.5% |
| Norma 203B | <<locked>> | 90% | 39,378 psi | 89% | 2247 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 90% | 39,392 psi | 89% | 2260 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 38,450 psi | 87% | 2215 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,185 psi | 77% | 1447 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 39,479 psi | 89% | 2323 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 82% | 38,305 psi | 87% | 2159 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 88% | 39,392 psi | 89% | 2192 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 94% | 38,551 psi | 87% | 2241 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 37,869 psi | 86% | 2218 fps | 98.9% |
| Shooters World Precision | <<locked>> | 90% | 39,552 psi | 89% | 2218 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 38,029 psi | 86% | 2241 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 38,363 psi | 87% | 2205 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 38,870 psi | 88% | 2129 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 38,116 psi | 86% | 2133 fps | 99.7% |
| Somchem S321 | <<locked>> | 82% | 39,784 psi | 90% | 2228 fps | 98.1% |
| Somchem S335 | <<locked>> | 84% | 38,058 psi | 86% | 2133 fps | 99.7% |
| Somchem S341 | <<locked>> | 86% | 39,711 psi | 90% | 2221 fps | 96.4% |
| Somchem S355 | <<locked>> | 94% | 39,929 psi | 90% | 2247 fps | 97.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,403 psi | 78% | 2221 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 84% | 38,769 psi | 88% | 2133 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 38,043 psi | 86% | 2192 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 39,334 psi | 89% | 2198 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 94% | 38,247 psi | 86% | 2198 fps | 98% |
| Vihtavuori N530 | <<locked>> | 84% | 39,726 psi | 90% | 2201 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 88% | 37,826 psi | 86% | 2188 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,856 psi | 90% | 2221 fps | 96.6% |
| Winchester 748 | <<locked>> | 84% | 38,087 psi | 86% | 2231 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 37,318 psi | 84% | 2205 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 36,129 psi | 82% | 2110 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 28,689 psi | 65% | 2028 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 34,287 psi | 78% | 2139 fps | 98.2% |
| Accurate 4064 | <<locked>> | 80% | 27,209 psi | 62% | 2005 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 82% | 35,375 psi | 80% | 2146 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,114 psi | 79% | 2116 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 80% | 33,228 psi | 75% | 2129 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 32,532 psi | 74% | 2116 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 36,999 psi | 84% | 2260 fps | 95.8% |
| Bofors RP3 | 41.9 gr | 86% | 31,589 psi | 71% | 2113 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,362 psi | 84% | 2119 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,547 psi | 74% | 2123 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 80% | 33,315 psi | 75% | 2110 fps | 95.2% |
| Hodgdon LEVERevolution | 42.3 gr | 84% | 33,649 psi | 76% | 2162 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,135 psi | 57% | 1260 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 34,287 psi | 78% | 2113 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 31,865 psi | 72% | 2119 fps | 99.5% |
| IMR 4895 | <<locked>> | 86% | 36,260 psi | 82% | 2198 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 35,114 psi | 79% | 2116 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 80% | 30,893 psi | 70% | 2080 fps | 97.2% |
| Lovex S060 | <<locked>> | 82% | 36,666 psi | 83% | 2103 fps | 95.6% |
| Lovex S062 | <<locked>> | 82% | 31,053 psi | 70% | 2051 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 32,634 psi | 74% | 2067 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 32,416 psi | 73% | 2083 fps | 98.2% |
| Norma 203B | <<locked>> | 86% | 34,737 psi | 79% | 2159 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 88% | 36,753 psi | 83% | 2211 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 36,085 psi | 82% | 2169 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,367 psi | 57% | 1293 fps | 100% |
| ReloadSwiss RS 60 | 43.5 gr | 86% | 30,560 psi | 69% | 2123 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 36,187 psi | 82% | 2119 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 30,966 psi | 70% | 2024 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 90% | 33,924 psi | 77% | 2152 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,893 psi | 70% | 2080 fps | 97.2% |
| Shooters World Precision | <<locked>> | 82% | 31,053 psi | 70% | 2051 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 35,708 psi | 81% | 2195 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 35,969 psi | 81% | 2159 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,447 psi | 78% | 2047 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,905 psi | 63% | 1936 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 37,057 psi | 84% | 2178 fps | 97.5% |
| Somchem S335 | <<locked>> | 80% | 33,895 psi | 77% | 2057 fps | 99.1% |
| Somchem S341 | <<locked>> | 84% | 36,985 psi | 84% | 2172 fps | 95.5% |
| Somchem S355 | <<locked>> | 88% | 33,025 psi | 75% | 2116 fps | 95% |
| Somchem S365 | <<locked>> | 98% | 32,271 psi | 73% | 2172 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 34,345 psi | 78% | 2057 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 29,399 psi | 66% | 2028 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 30,574 psi | 69% | 2031 fps | 98% |
| Vihtavuori N150 | <<locked>> | 86% | 29,515 psi | 67% | 2024 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 34,737 psi | 79% | 2110 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 80% | 29,182 psi | 66% | 2014 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 37,231 psi | 84% | 2172 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 33,431 psi | 76% | 2139 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 32,822 psi | 74% | 2113 fps | 95% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 52 powders for .33 Win. loaded with the .338 | 230gr | Norma ORYX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,323 fps; across all powders the maximum-charge window runs from 1,414 fps to 2,323 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 52 of the 52 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 77–90 %, leaving at least 10 % headroom. The 230.0 gr projectile in 0.338" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 60, Hodgdon LEVERevolution, Bofors RP3 rank at the top here: for .33 Win. with the .338 | 230gr | Norma ORYX they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.