Load Specifications
Load data in caliber .33 Win. with .338 | 210gr | Nosler Partition bullet and 43 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Accurate 4064 and IMR 3031.
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>> | 86% | 38,754 psi | 88% | 2247 fps | 99.9% |
| Accurate 2460 | <<locked>> | 84% | 39,378 psi | 89% | 2283 fps | 98.5% |
| Accurate 2495 | <<locked>> | 94% | 39,001 psi | 88% | 2320 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 39,421 psi | 89% | 2323 fps | 98.2% |
| Accurate 4064 | <<locked>> | 96% | 38,856 psi | 88% | 2339 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 37,971 psi | 86% | 2254 fps | 95.9% |
| Alliant AR-Comp | <<locked>> | 88% | 38,159 psi | 86% | 2313 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 39,175 psi | 89% | 2329 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 82% | 39,247 psi | 89% | 2260 fps | 100% |
| Bofors RP3 | <<locked>> | 96% | 38,276 psi | 87% | 2329 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 38,145 psi | 86% | 2215 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 37,579 psi | 85% | 2306 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 82% | 37,971 psi | 86% | 2274 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 82% | 38,218 psi | 86% | 2283 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,243 psi | 75% | 1457 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 38,580 psi | 87% | 2343 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 86% | 37,971 psi | 86% | 2254 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 84% | 39,204 psi | 89% | 2283 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 90% | 37,681 psi | 85% | 2303 fps | 97.8% |
| Lovex S062 | <<locked>> | 94% | 39,726 psi | 90% | 2306 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 39,479 psi | 89% | 2283 fps | 96.5% |
| Norma 202 | <<locked>> | 90% | 39,175 psi | 89% | 2303 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,286 psi | 75% | 1493 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 37,521 psi | 85% | 2247 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,987 psi | 90% | 2402 fps | 97.5% |
| Rottweil R 901 | <<locked>> | 86% | 38,740 psi | 88% | 2254 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 92% | 39,711 psi | 90% | 2283 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 37,681 psi | 85% | 2303 fps | 97.8% |
| Shooters World Precision | <<locked>> | 94% | 39,726 psi | 90% | 2306 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 40,016 psi | 90% | 2254 fps | 96% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 39,871 psi | 90% | 2270 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 39,711 psi | 90% | 2224 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 38,334 psi | 87% | 2221 fps | 99.1% |
| Somchem S321 | <<locked>> | 84% | 37,739 psi | 85% | 2274 fps | 96.3% |
| Somchem S335 | <<locked>> | 88% | 38,595 psi | 87% | 2228 fps | 99% |
| Vihtavuori N130 | <<locked>> | 84% | 39,885 psi | 90% | 2224 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 39,421 psi | 89% | 2234 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 92% | 37,623 psi | 85% | 2280 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 92% | 39,566 psi | 89% | 2290 fps | 99% |
| Vihtavuori N150 | <<locked>> | 98% | 38,029 psi | 86% | 2274 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 86% | 37,724 psi | 85% | 2247 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 92% | 38,058 psi | 86% | 2280 fps | 98.3% |
| Winchester 748 | <<locked>> | 88% | 38,595 psi | 87% | 2323 fps | 97.1% |
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% | 32,082 psi | 73% | 2119 fps | 99.1% |
| Accurate 2460 | <<locked>> | 80% | 34,374 psi | 78% | 2188 fps | 97.3% |
| Accurate 2495 | <<locked>> | 80% | 24,772 psi | 56% | 2021 fps | 97.4% |
| Accurate 2520 | <<locked>> | 80% | 29,994 psi | 68% | 2136 fps | 95.4% |
| Accurate 4064 | 38.3 gr | 84% | 26,687 psi | 60% | 2080 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 35,563 psi | 80% | 2205 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 29,370 psi | 66% | 2139 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 36,869 psi | 83% | 2287 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,086 psi | 84% | 2224 fps | 100% |
| Bofors RP3 | <<locked>> | 94% | 35,969 psi | 81% | 2287 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 33,852 psi | 77% | 2129 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 84% | 32,822 psi | 74% | 2211 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 35,389 psi | 80% | 2224 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 35,723 psi | 81% | 2238 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,685 psi | 56% | 1302 fps | 100% |
| IMR 3031 | 36 gr | 80% | 28,195 psi | 64% | 2116 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 84% | 35,563 psi | 80% | 2205 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 80% | 34,214 psi | 77% | 2188 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 84% | 30,705 psi | 69% | 2162 fps | 95.6% |
| Lovex S062 | <<locked>> | 90% | 35,201 psi | 80% | 2221 fps | 95.2% |
| Norma 201 | <<locked>> | 86% | 34,940 psi | 79% | 2198 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 28,747 psi | 65% | 2087 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,569 psi | 56% | 1332 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,302 psi | 80% | 2201 fps | 96.7% |
| ReloadSwiss RS 60 | 45.9 gr | 94% | 35,143 psi | 79% | 2297 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 32,343 psi | 73% | 2126 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 88% | 35,172 psi | 80% | 2195 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,705 psi | 69% | 2162 fps | 95.6% |
| Shooters World Precision | <<locked>> | 90% | 35,201 psi | 80% | 2221 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 37,420 psi | 85% | 2208 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,405 psi | 85% | 2224 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,951 psi | 70% | 2054 fps | 96.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,063 psi | 57% | 1936 fps | 95% |
| Somchem S321 | <<locked>> | 82% | 35,302 psi | 80% | 2228 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 30,414 psi | 69% | 2064 fps | 97.1% |
| Vihtavuori N130 | <<locked>> | 80% | 35,230 psi | 80% | 2142 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 30,676 psi | 69% | 2067 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 80% | 25,788 psi | 58% | 2028 fps | 97.5% |
| Vihtavuori N140 | <<locked>> | 80% | 27,253 psi | 62% | 2031 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 94% | 33,591 psi | 76% | 2188 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 35,491 psi | 80% | 2205 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 84% | 29,588 psi | 67% | 2103 fps | 95.7% |
| Winchester 748 | <<locked>> | 84% | 34,011 psi | 77% | 2231 fps | 95.7% |
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 43 powders for .33 Win. loaded with the .338 | 210gr | Nosler Partition. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,402 fps; across all powders the maximum-charge window runs from 1,457 fps to 2,402 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 43 of the 43 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.338" calls for a 1:16.5 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. ReloadSwiss RS 60, Accurate 4064, IMR 3031 rank at the top here: for .33 Win. with the .338 | 210gr | Nosler Partition 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.