Load Specifications
Load data in caliber .33 Win. with .338 | 200gr | Speer Hot-Cor bullet and 76 powders. The key underlying parameters are shown in the table above.
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% | 38,566 psi | 87% | 2313 fps | 99.8% |
| Accurate 2015 | <<locked>> | 86% | 38,566 psi | 87% | 2313 fps | 99.8% |
| Accurate 2460 | <<locked>> | 84% | 39,189 psi | 89% | 2352 fps | 98.2% |
| Accurate 2460 | <<locked>> | 84% | 39,189 psi | 89% | 2352 fps | 98.2% |
| Accurate 2495 | <<locked>> | 94% | 38,827 psi | 88% | 2388 fps | 99.9% |
| Accurate 2495 | <<locked>> | 94% | 38,827 psi | 88% | 2388 fps | 99.9% |
| Accurate 2520 | <<locked>> | 88% | 39,247 psi | 89% | 2392 fps | 97.9% |
| Accurate 2520 | <<locked>> | 88% | 39,247 psi | 89% | 2392 fps | 97.9% |
| Accurate 4064 | <<locked>> | 96% | 38,667 psi | 87% | 2408 fps | 98.8% |
| Accurate 4064 | <<locked>> | 96% | 38,667 psi | 87% | 2408 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 88% | 37,855 psi | 86% | 2382 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 37,855 psi | 86% | 2382 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 39,015 psi | 88% | 2329 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 39,015 psi | 88% | 2329 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 84% | 37,927 psi | 86% | 2280 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 37,927 psi | 86% | 2280 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 90% | 39,943 psi | 90% | 2421 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 39,943 psi | 90% | 2421 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 82% | 37,536 psi | 85% | 2336 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 82% | 37,536 psi | 85% | 2336 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 82% | 38,029 psi | 86% | 2352 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 82% | 38,029 psi | 86% | 2352 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,286 psi | 75% | 1509 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,286 psi | 75% | 1509 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 38,464 psi | 87% | 2411 fps | 99.6% |
| IMR 3031 | <<locked>> | 90% | 38,464 psi | 87% | 2411 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 84% | 38,914 psi | 88% | 2346 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 84% | 38,914 psi | 88% | 2346 fps | 96.9% |
| Lovex D073.6 | <<locked>> | 92% | 39,900 psi | 90% | 2415 fps | 98% |
| Lovex D073.6 | <<locked>> | 92% | 39,900 psi | 90% | 2415 fps | 98% |
| Lovex S062 | <<locked>> | 94% | 39,421 psi | 89% | 2372 fps | 96.2% |
| Lovex S062 | <<locked>> | 94% | 39,421 psi | 89% | 2372 fps | 96.2% |
| Norma 201 | <<locked>> | 90% | 39,276 psi | 89% | 2352 fps | 96.1% |
| Norma 201 | <<locked>> | 90% | 39,276 psi | 89% | 2352 fps | 96.1% |
| Norma 202 | <<locked>> | 90% | 39,015 psi | 88% | 2369 fps | 98.4% |
| Norma 202 | <<locked>> | 90% | 39,015 psi | 88% | 2369 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,272 psi | 75% | 1545 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,272 psi | 75% | 1545 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 39,798 psi | 90% | 2359 fps | 97.6% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 39,798 psi | 90% | 2359 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,784 psi | 90% | 2467 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 39,784 psi | 90% | 2467 fps | 97% |
| Rottweil R 901 | <<locked>> | 86% | 38,276 psi | 87% | 2316 fps | 98% |
| Rottweil R 901 | <<locked>> | 86% | 38,276 psi | 87% | 2316 fps | 98% |
| Rottweil R 902 | <<locked>> | 92% | 39,465 psi | 89% | 2346 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 92% | 39,465 psi | 89% | 2346 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 92% | 39,900 psi | 90% | 2415 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 92% | 39,900 psi | 90% | 2415 fps | 98% |
| Shooters World Precision | <<locked>> | 94% | 39,421 psi | 89% | 2372 fps | 96.2% |
| Shooters World Precision | <<locked>> | 94% | 39,421 psi | 89% | 2372 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 39,610 psi | 90% | 2336 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 39,610 psi | 90% | 2336 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 39,494 psi | 89% | 2293 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 39,494 psi | 89% | 2293 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 38,145 psi | 86% | 2287 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 38,145 psi | 86% | 2287 fps | 98.9% |
| Somchem S321 | <<locked>> | 84% | 37,449 psi | 85% | 2339 fps | 95.8% |
| Somchem S321 | <<locked>> | 84% | 37,449 psi | 85% | 2339 fps | 95.8% |
| Somchem S335 | <<locked>> | 88% | 38,305 psi | 87% | 2293 fps | 98.8% |
| Somchem S335 | <<locked>> | 88% | 38,305 psi | 87% | 2293 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 84% | 39,523 psi | 89% | 2290 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 39,523 psi | 89% | 2290 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 39,131 psi | 88% | 2300 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 88% | 39,131 psi | 88% | 2300 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 94% | 39,827 psi | 90% | 2392 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 94% | 39,827 psi | 90% | 2392 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 92% | 39,233 psi | 89% | 2352 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 92% | 39,233 psi | 89% | 2352 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 98% | 37,985 psi | 86% | 2343 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 98% | 37,985 psi | 86% | 2343 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 88% | 39,972 psi | 90% | 2359 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 88% | 39,972 psi | 90% | 2359 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 92% | 37,855 psi | 86% | 2346 fps | 98% |
| Vihtavuori N540 | <<locked>> | 92% | 37,855 psi | 86% | 2346 fps | 98% |
| Winchester 748 | <<locked>> | 88% | 38,232 psi | 86% | 2388 fps | 96.7% |
| Winchester 748 | <<locked>> | 88% | 38,232 psi | 86% | 2388 fps | 96.7% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 31,908 psi | 72% | 2185 fps | 98.8% |
| Accurate 2015 | <<locked>> | 80% | 31,908 psi | 72% | 2185 fps | 98.8% |
| Accurate 2460 | <<locked>> | 80% | 34,113 psi | 77% | 2251 fps | 96.9% |
| Accurate 2460 | <<locked>> | 80% | 34,113 psi | 77% | 2251 fps | 96.9% |
| Accurate 2495 | <<locked>> | 80% | 24,526 psi | 55% | 2077 fps | 97% |
| Accurate 2495 | <<locked>> | 80% | 24,526 psi | 55% | 2077 fps | 97% |
| Accurate 2520 | <<locked>> | 82% | 31,807 psi | 72% | 2241 fps | 95.7% |
| Accurate 2520 | <<locked>> | 82% | 31,807 psi | 72% | 2241 fps | 95.7% |
| Accurate 4064 | <<locked>> | 86% | 28,137 psi | 64% | 2182 fps | 95.7% |
| Accurate 4064 | <<locked>> | 86% | 28,137 psi | 64% | 2182 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 29,182 psi | 66% | 2198 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 29,182 psi | 66% | 2198 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,680 psi | 83% | 2287 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,680 psi | 83% | 2287 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,853 psi | 81% | 2238 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,853 psi | 81% | 2238 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 86% | 34,795 psi | 79% | 2320 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 86% | 34,795 psi | 79% | 2320 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 35,302 psi | 80% | 2293 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 35,302 psi | 80% | 2293 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 80% | 35,447 psi | 80% | 2300 fps | 97.5% |
| Hodgdon H335 | <<locked>> | 80% | 35,447 psi | 80% | 2300 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,497 psi | 55% | 1345 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,497 psi | 55% | 1345 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 28,007 psi | 63% | 2175 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 28,007 psi | 63% | 2175 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 80% | 33,895 psi | 77% | 2247 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 80% | 33,895 psi | 77% | 2247 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 84% | 30,574 psi | 69% | 2224 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 84% | 30,574 psi | 69% | 2224 fps | 95.2% |
| Lovex S062 | <<locked>> | 92% | 37,173 psi | 84% | 2329 fps | 95.5% |
| Lovex S062 | <<locked>> | 92% | 37,173 psi | 84% | 2329 fps | 95.5% |
| Norma 201 | <<locked>> | 88% | 36,782 psi | 83% | 2303 fps | 95.3% |
| Norma 201 | <<locked>> | 88% | 36,782 psi | 83% | 2303 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 28,514 psi | 64% | 2142 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 28,514 psi | 64% | 2142 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,627 psi | 56% | 1381 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,627 psi | 56% | 1381 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,172 psi | 80% | 2267 fps | 96.3% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,172 psi | 80% | 2267 fps | 96.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 35,027 psi | 79% | 2359 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 35,027 psi | 79% | 2359 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 32,184 psi | 73% | 2188 fps | 96.2% |
| Rottweil R 901 | <<locked>> | 80% | 32,184 psi | 73% | 2188 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 90% | 37,260 psi | 84% | 2303 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 90% | 37,260 psi | 84% | 2303 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,574 psi | 69% | 2224 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,574 psi | 69% | 2224 fps | 95.2% |
| Shooters World Precision | <<locked>> | 92% | 37,173 psi | 84% | 2329 fps | 95.5% |
| Shooters World Precision | <<locked>> | 92% | 37,173 psi | 84% | 2329 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,260 psi | 84% | 2293 fps | 99.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,260 psi | 84% | 2293 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,806 psi | 70% | 2116 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,806 psi | 70% | 2116 fps | 95.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,469 psi | 60% | 2034 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,469 psi | 60% | 2034 fps | 95.3% |
| Somchem S321 | <<locked>> | 82% | 35,099 psi | 79% | 2290 fps | 95% |
| Somchem S321 | <<locked>> | 82% | 35,099 psi | 79% | 2290 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 30,182 psi | 68% | 2123 fps | 96.7% |
| Somchem S335 | <<locked>> | 80% | 30,182 psi | 68% | 2123 fps | 96.7% |
| Vihtavuori N130 | <<locked>> | 80% | 35,056 psi | 79% | 2208 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 80% | 35,056 psi | 79% | 2208 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 30,545 psi | 69% | 2129 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 80% | 30,545 psi | 69% | 2129 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 80% | 25,657 psi | 58% | 2087 fps | 97.1% |
| Vihtavuori N135 | <<locked>> | 80% | 25,657 psi | 58% | 2087 fps | 97.1% |
| Vihtavuori N140 | <<locked>> | 82% | 28,689 psi | 65% | 2129 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 82% | 28,689 psi | 65% | 2129 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 96% | 35,563 psi | 80% | 2293 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 96% | 35,563 psi | 80% | 2293 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 86% | 37,362 psi | 84% | 2310 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 86% | 37,362 psi | 84% | 2310 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 84% | 29,298 psi | 66% | 2159 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 84% | 29,298 psi | 66% | 2159 fps | 95.1% |
| Winchester 748 | <<locked>> | 84% | 33,634 psi | 76% | 2290 fps | 95.1% |
| Winchester 748 | <<locked>> | 84% | 33,634 psi | 76% | 2290 fps | 95.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 76 powders for .33 Win. loaded with the .338 | 200gr | Speer Hot-Cor. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,467 fps; across all powders the maximum-charge window runs from 1,509 fps to 2,467 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 76 of the 76 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 200.0 gr projectile in 0.338" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.