Load Specifications
Load data in caliber .33 Win. with .338 | 210gr | Barnes X BT bullet and 30 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Lovex D073.6 and Shooters World Match Rifle.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 39,972 psi | 90% | 2215 fps | 99.8% |
| Accurate 2460 | <<locked>> | 82% | 38,261 psi | 86% | 2208 fps | 97.7% |
| Accurate 2495 | <<locked>> | 92% | 38,551 psi | 87% | 2254 fps | 99.8% |
| Accurate 2520 | <<locked>> | 86% | 37,898 psi | 86% | 2241 fps | 97.3% |
| Accurate 4064 | <<locked>> | 94% | 38,101 psi | 86% | 2267 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 88% | 38,798 psi | 88% | 2274 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 84% | 39,001 psi | 88% | 2175 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 88% | 38,159 psi | 86% | 2264 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 82% | 38,334 psi | 87% | 2228 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 82% | 38,783 psi | 88% | 2241 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,707 psi | 76% | 1427 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 39,334 psi | 89% | 2303 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 82% | 37,942 psi | 86% | 2201 fps | 96.3% |
| Lovex D073.6 | <<locked>> | 90% | 38,624 psi | 87% | 2267 fps | 97.5% |
| Norma 202 | <<locked>> | 90% | 39,885 psi | 90% | 2260 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,924 psi | 77% | 1463 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 38,392 psi | 87% | 2208 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 84% | 38,203 psi | 86% | 2182 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 90% | 38,624 psi | 87% | 2267 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 38,276 psi | 87% | 2146 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 38,928 psi | 88% | 2182 fps | 98.8% |
| Somchem S321 | <<locked>> | 84% | 38,406 psi | 87% | 2234 fps | 95.8% |
| Somchem S335 | <<locked>> | 88% | 39,711 psi | 90% | 2195 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 82% | 38,363 psi | 87% | 2149 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 88% | 39,798 psi | 90% | 2188 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 92% | 38,464 psi | 87% | 2244 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 92% | 40,016 psi | 90% | 2247 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 98% | 38,769 psi | 88% | 2234 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 92% | 38,624 psi | 87% | 2238 fps | 97.9% |
| Winchester 748 | <<locked>> | 88% | 39,160 psi | 89% | 2280 fps | 96.6% |
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% | 33,721 psi | 76% | 2096 fps | 99% |
| Accurate 2460 | <<locked>> | 80% | 36,027 psi | 81% | 2165 fps | 97.1% |
| Accurate 2495 | <<locked>> | 80% | 27,253 psi | 62% | 2021 fps | 97.8% |
| Accurate 2520 | <<locked>> | 80% | 31,299 psi | 71% | 2110 fps | 95.2% |
| Accurate 4064 | <<locked>> | 84% | 28,805 psi | 65% | 2070 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 30,705 psi | 69% | 2113 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,782 psi | 83% | 2133 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 35,969 psi | 81% | 2221 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 36,260 psi | 82% | 2188 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 80% | 36,506 psi | 83% | 2201 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,280 psi | 57% | 1276 fps | 100% |
| IMR 3031 | 33.7 gr | 80% | 29,385 psi | 66% | 2090 fps | 97.2% |
| Lovex D073.5 | <<locked>> | 80% | 35,694 psi | 81% | 2159 fps | 95.6% |
| Lovex D073.6 | 37.8 gr | 84% | 32,097 psi | 73% | 2139 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 29,820 psi | 67% | 2057 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,309 psi | 57% | 1306 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,172 psi | 82% | 2165 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 80% | 34,447 psi | 78% | 2106 fps | 96.6% |
| Shooters World Match Rifle | 37.8 gr | 84% | 32,097 psi | 73% | 2139 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,227 psi | 73% | 2028 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 27,804 psi | 63% | 1949 fps | 95.6% |
| Somchem S321 | <<locked>> | 82% | 36,201 psi | 82% | 2192 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 31,850 psi | 72% | 2037 fps | 97% |
| Vihtavuori N130 | <<locked>> | 80% | 36,347 psi | 82% | 2113 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 31,734 psi | 72% | 2037 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 27,311 psi | 62% | 2008 fps | 97.5% |
| Vihtavuori N140 | <<locked>> | 80% | 28,413 psi | 64% | 2001 fps | 95% |
| Vihtavuori N150 | <<locked>> | 96% | 36,492 psi | 82% | 2192 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 84% | 30,763 psi | 70% | 2077 fps | 95.4% |
| Winchester 748 | <<locked>> | 84% | 34,795 psi | 79% | 2192 fps | 95.1% |
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 30 powders for .33 Win. loaded with the .338 | 210gr | Barnes X BT. IMR 3031 delivers the highest muzzle velocity at 2,303 fps; across all powders the maximum-charge window runs from 1,427 fps to 2,303 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 30 of the 30 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 76–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.338" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. IMR 3031, Lovex D073.6, Shooters World Match Rifle rank at the top here: for .33 Win. with the .338 | 210gr | Barnes X BT 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.