Load Specifications
Load data in caliber .33 Win. with .338 | 165gr | TPM XTLD bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, IMR 3031 and SNPE Vectan SP 3.
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% | 39,378 psi | 89% | 2543 fps | 98.5% |
| Accurate 2015 | <<locked>> | 94% | 39,378 psi | 89% | 2543 fps | 98.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,665 psi | 81% | 2549 fps | 98.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,665 psi | 81% | 2549 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 84% | 38,827 psi | 88% | 2434 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 84% | 38,827 psi | 88% | 2434 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 82% | 37,797 psi | 85% | 2493 fps | 100% |
| ADI AR 2207 | <<locked>> | 82% | 37,797 psi | 85% | 2493 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 38,101 psi | 86% | 2546 fps | 96.5% |
| ADI AR 2219 | <<locked>> | 86% | 38,101 psi | 86% | 2546 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 96% | 38,740 psi | 88% | 2615 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 96% | 38,740 psi | 88% | 2615 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 88% | 37,840 psi | 86% | 2530 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 88% | 37,840 psi | 86% | 2530 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 39,305 psi | 89% | 2490 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 39,305 psi | 89% | 2490 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 38,972 psi | 88% | 2464 fps | 97.3% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 38,972 psi | 88% | 2464 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 90% | 39,407 psi | 89% | 2572 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 90% | 39,407 psi | 89% | 2572 fps | 96.9% |
| Hodgdon H335 | <<locked>> | 90% | 39,958 psi | 90% | 2589 fps | 95.9% |
| Hodgdon H335 | <<locked>> | 90% | 39,958 psi | 90% | 2589 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,792 psi | 72% | 1627 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,792 psi | 72% | 1627 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 39,117 psi | 88% | 2631 fps | 97.7% |
| IMR 3031 | <<locked>> | 98% | 39,117 psi | 88% | 2631 fps | 97.7% |
| IMR 4198 | <<locked>> | 88% | 40,016 psi | 90% | 2520 fps | 99.7% |
| IMR 4198 | <<locked>> | 88% | 40,016 psi | 90% | 2520 fps | 99.7% |
| Norma 200 | <<locked>> | 84% | 37,855 psi | 86% | 2510 fps | 99.4% |
| Norma 200 | <<locked>> | 84% | 37,855 psi | 86% | 2510 fps | 99.4% |
| Norma 202 | <<locked>> | 98% | 39,813 psi | 90% | 2589 fps | 96% |
| Norma 202 | <<locked>> | 98% | 39,813 psi | 90% | 2589 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,589 psi | 71% | 1667 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,589 psi | 71% | 1667 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 38,711 psi | 88% | 2530 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 38,711 psi | 88% | 2530 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,333 psi | 84% | 2457 fps | 96.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,333 psi | 84% | 2457 fps | 96.2% |
| Somchem S335 | <<locked>> | 96% | 39,697 psi | 90% | 2516 fps | 96.8% |
| Somchem S335 | <<locked>> | 96% | 39,697 psi | 90% | 2516 fps | 96.8% |
| Vihtavuori N120 | <<locked>> | 82% | 37,971 psi | 86% | 2457 fps | 100% |
| Vihtavuori N120 | <<locked>> | 82% | 37,971 psi | 86% | 2457 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 38,870 psi | 88% | 2490 fps | 99% |
| Vihtavuori N130 | <<locked>> | 90% | 38,870 psi | 88% | 2490 fps | 99% |
| Vihtavuori N133 | <<locked>> | 94% | 38,130 psi | 86% | 2484 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 94% | 38,130 psi | 86% | 2484 fps | 98.1% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,652 psi | 85% | 2566 fps | 98.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,652 psi | 85% | 2566 fps | 98.4% |
| Vihtavuori N140 | <<locked>> | 98% | 38,087 psi | 86% | 2526 fps | 95.8% |
| Vihtavuori N140 | <<locked>> | 98% | 38,087 psi | 86% | 2526 fps | 95.8% |
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>> | 84% | 28,819 psi | 65% | 2310 fps | 95.3% |
| Accurate 2015 | <<locked>> | 84% | 28,819 psi | 65% | 2310 fps | 95.3% |
| Accurate 2495 | <<locked>> | 92% | 27,224 psi | 62% | 2352 fps | 95.3% |
| Accurate 2495 | <<locked>> | 92% | 27,224 psi | 62% | 2352 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 34,330 psi | 78% | 2339 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 34,330 psi | 78% | 2339 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 35,404 psi | 80% | 2444 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 35,404 psi | 80% | 2444 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 35,810 psi | 81% | 2497 fps | 95.8% |
| ADI AR 2219 | <<locked>> | 84% | 35,810 psi | 81% | 2497 fps | 95.8% |
| Alliant AR-Comp | 35.7 gr | 80% | 23,598 psi | 53% | 2211 fps | 95.1% |
| Alliant AR-Comp | 35.7 gr | 80% | 23,598 psi | 53% | 2211 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,675 psi | 67% | 2343 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,675 psi | 67% | 2343 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,912 psi | 83% | 2444 fps | 99.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,912 psi | 83% | 2444 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,358 psi | 73% | 2323 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,358 psi | 73% | 2323 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 86% | 34,824 psi | 79% | 2474 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 86% | 34,824 psi | 79% | 2474 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 88% | 37,362 psi | 84% | 2533 fps | 95.1% |
| Hodgdon H335 | <<locked>> | 88% | 37,362 psi | 84% | 2533 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,177 psi | 52% | 1450 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,177 psi | 52% | 1450 fps | 100% |
| IMR 3031 | 41.1 gr | 92% | 32,706 psi | 74% | 2484 fps | 95.6% |
| IMR 3031 | 41.1 gr | 92% | 32,706 psi | 74% | 2484 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 31,778 psi | 72% | 2343 fps | 98.4% |
| IMR 4198 | <<locked>> | 80% | 31,778 psi | 72% | 2343 fps | 98.4% |
| Norma 200 | <<locked>> | 80% | 33,344 psi | 75% | 2415 fps | 98.7% |
| Norma 200 | <<locked>> | 80% | 33,344 psi | 75% | 2415 fps | 98.7% |
| Norma 202 | <<locked>> | 96% | 37,405 psi | 85% | 2543 fps | 95.3% |
| Norma 202 | <<locked>> | 96% | 37,405 psi | 85% | 2543 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,163 psi | 52% | 1486 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,163 psi | 52% | 1486 fps | 100% |
| SNPE Vectan SP 3 | 35.8 gr | 82% | 32,213 psi | 73% | 2385 fps | 95.6% |
| SNPE Vectan SP 3 | 35.8 gr | 82% | 32,213 psi | 73% | 2385 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 35,085 psi | 79% | 2411 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 35,085 psi | 79% | 2411 fps | 95.4% |
| Somchem S335 | <<locked>> | 92% | 35,186 psi | 80% | 2425 fps | 95.5% |
| Somchem S335 | <<locked>> | 92% | 35,186 psi | 80% | 2425 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 35,621 psi | 81% | 2411 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 35,621 psi | 81% | 2411 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,631 psi | 65% | 2260 fps | 96.2% |
| Vihtavuori N130 | <<locked>> | 80% | 28,631 psi | 65% | 2260 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 86% | 30,037 psi | 68% | 2303 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 86% | 30,037 psi | 68% | 2303 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 92% | 29,501 psi | 67% | 2375 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 92% | 29,501 psi | 67% | 2375 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 96% | 35,868 psi | 81% | 2480 fps | 95% |
| Vihtavuori N140 | <<locked>> | 96% | 35,868 psi | 81% | 2480 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 50 powders for .33 Win. loaded with the .338 | 165gr | TPM XTLD. IMR 3031 delivers the highest muzzle velocity at 2,631 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,631 fps. Accurate 2495 gives the best case fill at 100 %, and 50 of the 50 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 165.0 gr projectile in 0.338" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2495, 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. Alliant AR-Comp, IMR 3031, SNPE Vectan SP 3 rank at the top here: for .33 Win. with the .338 | 165gr | TPM XTLD 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.