Load Specifications
Load data in caliber .33 Win. with .338 | 185gr | Fox Classic Hunter bullet and 35 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Alliant AR-Comp and Hodgdon H322.
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>> | 94% | 40,001 psi | 90% | 2402 fps | 99.2% |
| Accurate 2460 | <<locked>> | 90% | 38,203 psi | 86% | 2385 fps | 96.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,752 psi | 81% | 2402 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 33,388 psi | 75% | 2365 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 84% | 39,073 psi | 88% | 2290 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 84% | 39,523 psi | 89% | 2297 fps | 96% |
| ADI AR 2207 | <<locked>> | 82% | 38,334 psi | 87% | 2343 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 38,696 psi | 87% | 2408 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 96% | 39,131 psi | 88% | 2464 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 38,232 psi | 86% | 2382 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 82% | 39,595 psi | 90% | 2343 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 39,581 psi | 89% | 2326 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 90% | 39,827 psi | 90% | 2428 fps | 97.9% |
| Hodgdon H335 | <<locked>> | 88% | 37,753 psi | 85% | 2395 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,604 psi | 71% | 1509 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 39,624 psi | 90% | 2487 fps | 98.7% |
| IMR 4198 | <<locked>> | 86% | 38,450 psi | 87% | 2336 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 98% | 38,305 psi | 87% | 2441 fps | 95.9% |
| Norma 200 | <<locked>> | 84% | 38,232 psi | 86% | 2365 fps | 99.8% |
| Norma 202 | <<locked>> | 96% | 37,855 psi | 86% | 2402 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,430 psi | 71% | 1545 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 39,827 psi | 90% | 2405 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 94% | 39,320 psi | 89% | 2392 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 98% | 38,305 psi | 87% | 2441 fps | 95.9% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 38,769 psi | 88% | 2408 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 39,262 psi | 89% | 2385 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 39,131 psi | 88% | 2329 fps | 96.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,681 psi | 85% | 2320 fps | 97.3% |
| Somchem S335 | <<locked>> | 96% | 39,987 psi | 90% | 2372 fps | 97.8% |
| Vihtavuori N120 | <<locked>> | 82% | 38,566 psi | 87% | 2306 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 39,421 psi | 89% | 2346 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 94% | 38,479 psi | 87% | 2339 fps | 98.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,116 psi | 86% | 2421 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 98% | 38,406 psi | 87% | 2385 fps | 96.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 39,392 psi | 89% | 2421 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% | 25,425 psi | 57% | 2087 fps | 95% |
| Accurate 2460 | <<locked>> | 88% | 35,447 psi | 80% | 2333 fps | 95.5% |
| Accurate 2495 | <<locked>> | 90% | 25,208 psi | 57% | 2165 fps | 95.6% |
| Accurate 4064 | <<locked>> | 98% | 31,357 psi | 71% | 2323 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 34,461 psi | 78% | 2201 fps | 96.7% |
| Accurate LT-32 | <<locked>> | 82% | 37,275 psi | 84% | 2254 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 35,766 psi | 81% | 2297 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 31,633 psi | 72% | 2257 fps | 95.4% |
| Alliant AR-Comp | 33.8 gr | 80% | 23,641 psi | 53% | 2093 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,878 psi | 68% | 2205 fps | 98% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,289 psi | 84% | 2300 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,590 psi | 74% | 2192 fps | 96.4% |
| Hodgdon H322 | 35.8 gr | 82% | 30,937 psi | 70% | 2241 fps | 95.1% |
| Hodgdon H335 | <<locked>> | 86% | 35,375 psi | 80% | 2346 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,264 psi | 53% | 1348 fps | 100% |
| IMR 3031 | 37.1 gr | 88% | 28,964 psi | 65% | 2247 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 32,068 psi | 72% | 2205 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 96% | 35,766 psi | 81% | 2392 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 33,620 psi | 76% | 2277 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 33,359 psi | 75% | 2310 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,974 psi | 52% | 1381 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 37,275 psi | 84% | 2359 fps | 95% |
| Rottweil R 901 | <<locked>> | 90% | 34,737 psi | 79% | 2300 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 96% | 35,766 psi | 81% | 2392 fps | 95.1% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 33,779 psi | 76% | 2306 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 30,516 psi | 69% | 2201 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 34,635 psi | 78% | 2244 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 31,314 psi | 71% | 2192 fps | 95.2% |
| Somchem S335 | <<locked>> | 88% | 31,256 psi | 71% | 2201 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 35,969 psi | 81% | 2264 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,761 psi | 65% | 2129 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 82% | 26,760 psi | 60% | 2087 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 88% | 26,121 psi | 59% | 2149 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 94% | 33,910 psi | 77% | 2297 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 96% | 34,621 psi | 78% | 2326 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 35 powders for .33 Win. loaded with the .338 | 185gr | Fox Classic Hunter. IMR 3031 delivers the highest muzzle velocity at 2,487 fps; across all powders the maximum-charge window runs from 1,509 fps to 2,487 fps. Accurate 2495 gives the best case fill at 100 %, and 35 of the 35 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.338" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon TrailBoss 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, Alliant AR-Comp, Hodgdon H322 rank at the top here: for .33 Win. with the .338 | 185gr | Fox Classic Hunter 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.