Load Specifications
Load data in caliber .33 Win. with .338 | 200gr | Hornady InterLock FP bullet and 42 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>> | 84% | 38,218 psi | 86% | 2329 fps | 99.9% |
| Accurate 2460 | <<locked>> | 82% | 38,841 psi | 88% | 2365 fps | 98.4% |
| Accurate 2495 | <<locked>> | 92% | 39,131 psi | 88% | 2411 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 39,001 psi | 88% | 2408 fps | 98.2% |
| Accurate 4064 | <<locked>> | 94% | 39,044 psi | 88% | 2434 fps | 99.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 39,639 psi | 90% | 2382 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 86% | 37,681 psi | 85% | 2398 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 39,856 psi | 90% | 2457 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 38,827 psi | 88% | 2418 fps | 96.1% |
| Bofors RP3 | <<locked>> | 94% | 38,087 psi | 86% | 2418 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 39,987 psi | 90% | 2343 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 88% | 39,755 psi | 90% | 2441 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 82% | 39,624 psi | 90% | 2398 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 88% | 39,972 psi | 90% | 2421 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,562 psi | 76% | 1539 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 38,189 psi | 86% | 2431 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 86% | 39,639 psi | 90% | 2382 fps | 96.5% |
| Lovex D073.5 | <<locked>> | 82% | 38,479 psi | 87% | 2362 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 88% | 37,318 psi | 84% | 2388 fps | 97.8% |
| Lovex S062 | <<locked>> | 92% | 39,363 psi | 89% | 2395 fps | 96.6% |
| Norma 201 | <<locked>> | 88% | 39,088 psi | 88% | 2372 fps | 96.5% |
| Norma 202 | <<locked>> | 88% | 38,827 psi | 88% | 2388 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,576 psi | 76% | 1572 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 39,407 psi | 89% | 2375 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 39,407 psi | 89% | 2493 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 84% | 38,218 psi | 86% | 2339 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 90% | 39,291 psi | 89% | 2369 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 88% | 37,318 psi | 84% | 2388 fps | 97.8% |
| Shooters World Precision | <<locked>> | 92% | 39,363 psi | 89% | 2395 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 38,885 psi | 88% | 2306 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 37,840 psi | 86% | 2303 fps | 99.1% |
| Somchem S321 | <<locked>> | 84% | 39,813 psi | 90% | 2408 fps | 96.9% |
| Somchem S335 | <<locked>> | 86% | 38,145 psi | 86% | 2313 fps | 99% |
| Vihtavuori N130 | <<locked>> | 82% | 39,189 psi | 89% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 38,653 psi | 87% | 2313 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 92% | 39,798 psi | 90% | 2408 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 39,204 psi | 89% | 2375 fps | 99% |
| Vihtavuori N150 | <<locked>> | 96% | 37,840 psi | 86% | 2365 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 86% | 39,653 psi | 90% | 2379 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 90% | 37,695 psi | 85% | 2365 fps | 98.3% |
| Winchester 748 | <<locked>> | 86% | 38,145 psi | 86% | 2411 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 39,972 psi | 90% | 2431 fps | 95.9% |
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% | 33,837 psi | 76% | 2244 fps | 99.4% |
| Accurate 2460 | <<locked>> | 80% | 36,274 psi | 82% | 2316 fps | 97.9% |
| Accurate 2495 | <<locked>> | 80% | 26,324 psi | 60% | 2139 fps | 98% |
| Accurate 2520 | <<locked>> | 80% | 31,778 psi | 72% | 2260 fps | 96.1% |
| Accurate 4064 | 40.9 gr | 82% | 26,600 psi | 60% | 2156 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,085 psi | 79% | 2287 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,937 psi | 70% | 2260 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 37,362 psi | 84% | 2408 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 36,463 psi | 82% | 2372 fps | 95.3% |
| Bofors RP3 | <<locked>> | 92% | 35,679 psi | 81% | 2372 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,215 psi | 80% | 2247 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 84% | 34,635 psi | 78% | 2339 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 80% | 37,115 psi | 84% | 2352 fps | 99% |
| Hodgdon H4895 | <<locked>> | 86% | 37,579 psi | 85% | 2372 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,685 psi | 56% | 1368 fps | 100% |
| IMR 3031 | 39.4 gr | 80% | 29,646 psi | 67% | 2241 fps | 98% |
| IMR 8208 XBR | <<locked>> | 82% | 35,085 psi | 79% | 2287 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 80% | 35,911 psi | 81% | 2313 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 82% | 30,574 psi | 69% | 2244 fps | 95.6% |
| Lovex S062 | <<locked>> | 88% | 34,737 psi | 79% | 2300 fps | 95.2% |
| Norma 201 | <<locked>> | 84% | 34,548 psi | 78% | 2280 fps | 95% |
| Norma 202 | <<locked>> | 80% | 30,168 psi | 68% | 2205 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,831 psi | 56% | 1404 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,057 psi | 84% | 2329 fps | 97.3% |
| ReloadSwiss RS 60 | 49.2 gr | 92% | 34,751 psi | 79% | 2388 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 33,779 psi | 76% | 2244 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 86% | 34,911 psi | 79% | 2280 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 30,574 psi | 69% | 2244 fps | 95.6% |
| Shooters World Precision | <<locked>> | 88% | 34,737 psi | 79% | 2300 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,489 psi | 73% | 2178 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,339 psi | 60% | 2051 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 34,780 psi | 79% | 2306 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 31,763 psi | 72% | 2182 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 80% | 37,014 psi | 84% | 2267 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,343 psi | 73% | 2188 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 27,340 psi | 62% | 2149 fps | 98.1% |
| Vihtavuori N140 | <<locked>> | 80% | 28,500 psi | 64% | 2146 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 92% | 33,359 psi | 75% | 2274 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 82% | 34,693 psi | 78% | 2280 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 82% | 29,138 psi | 66% | 2178 fps | 95.6% |
| Winchester 748 | <<locked>> | 82% | 33,315 psi | 75% | 2306 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 37,405 psi | 85% | 2382 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 42 powders for .33 Win. loaded with the .338 | 200gr | Hornady InterLock FP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,493 fps; across all powders the maximum-charge window runs from 1,539 fps to 2,493 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 42 of the 42 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. 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 | 200gr | Hornady InterLock FP 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.