Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:250 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.33 Nosler load data
Case Length (l3):2.46"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:96 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:15.0
Load data in caliber .33 Nosler with .338 | 250gr | Nosler Partition bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Hodgdon Superformance.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 55,376 psi | 85% | 2493 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,609 psi | 89% | 2572 fps | 99.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,824 psi | 83% | 2608 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 55,738 psi | 86% | 2543 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,376 psi | 87% | 2654 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 57,856 psi | 89% | 2612 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,709 psi | 86% | 2575 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 57,159 psi | 88% | 2697 fps | 99% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,737 psi | 84% | 2694 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 58,813 psi | 90% | 2743 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,159 psi | 88% | 2694 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,347 psi | 87% | 2595 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,739 psi | 87% | 2618 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,942 psi | 88% | 2700 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 58,407 psi | 90% | 2723 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,405 psi | 87% | 2684 fps | 99% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,592 psi | 82% | 2690 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,502 psi | 78% | 2621 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,034 psi | 68% | 2562 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 58,175 psi | 89% | 2808 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 58,102 psi | 89% | 2638 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,110 psi | 76% | 2618 fps | 98% |
| Bofors RP3 | <<locked>> | 86% | 57,246 psi | 88% | 2612 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,592 psi | 82% | 2690 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 56,521 psi | 87% | 2602 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 86% | 57,798 psi | 89% | 2631 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 58,450 psi | 90% | 2700 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 90% | 58,262 psi | 90% | 2664 fps | 99.3% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 58,755 psi | 90% | 2694 fps | 97.8% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,464 psi | 88% | 2677 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 82% | 58,566 psi | 90% | 2618 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,188 psi | 88% | 2625 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,463 psi | 85% | 2615 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,033 psi | 66% | 2592 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 90% | 54,839 psi | 84% | 2687 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,521 psi | 56% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,999 psi | 86% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 58,697 psi | 90% | 2605 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,667 psi | 89% | 2595 fps | 99.8% |
| IMR 4350 | <<locked>> | 94% | 57,479 psi | 88% | 2635 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 58,276 psi | 90% | 2628 fps | 99.8% |
| IMR 4831 | <<locked>> | 94% | 56,550 psi | 87% | 2641 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 58,204 psi | 90% | 2641 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,536 psi | 87% | 2631 fps | 97.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,199 psi | 80% | 2667 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 82% | 58,697 psi | 90% | 2589 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,594 psi | 87% | 2543 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 58,769 psi | 90% | 2595 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 58,262 psi | 90% | 2621 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 56,173 psi | 86% | 2618 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,788 psi | 69% | 2474 fps | 99.1% |
| Norma 201 | <<locked>> | 82% | 56,739 psi | 87% | 2559 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,363 psi | 88% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,014 psi | 86% | 2605 fps | 100% |
| Norma 204 | <<locked>> | 94% | 58,566 psi | 90% | 2690 fps | 99.1% |
| Norma MRPᴾ | <<locked>> | 100% | 56,913 psi | 88% | 2766 fps | 99.8% |
| Norma URP | <<locked>> | 94% | 58,494 psi | 90% | 2684 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,710 psi | 87% | 2631 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,344 psi | 81% | 2680 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 94% | 57,305 psi | 88% | 2690 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,615 psi | 72% | 2566 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,217 psi | 57% | 1624 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,595 psi | 89% | 2618 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,870 psi | 89% | 2680 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 57,972 psi | 89% | 2713 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,898 psi | 86% | 2674 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 58,320 psi | 90% | 2753 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,917 psi | 66% | 2589 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 84% | 57,479 psi | 88% | 2562 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,377 psi | 88% | 2608 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 58,798 psi | 90% | 2664 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 98% | 55,579 psi | 86% | 2671 fps | 99% |
| Rottweil R 907 | <<locked>> | 90% | 56,521 psi | 87% | 2602 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 58,262 psi | 90% | 2621 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 58,697 psi | 90% | 2589 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 58,769 psi | 90% | 2595 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,173 psi | 86% | 2618 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,361 psi | 85% | 2618 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,362 psi | 87% | 2589 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,435 psi | 88% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 58,392 psi | 90% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 58,088 psi | 89% | 2582 fps | 99.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 58,740 psi | 90% | 2717 fps | 99.3% |
| Somchem S335 | <<locked>> | 82% | 57,203 psi | 88% | 2490 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,290 psi | 88% | 2605 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 57,043 psi | 88% | 2615 fps | 97.4% |
| Somchem S365 | <<locked>> | 96% | 57,740 psi | 89% | 2680 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,231 psi | 87% | 2648 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 57,986 psi | 89% | 2470 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,870 psi | 89% | 2516 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 58,015 psi | 89% | 2536 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 58,740 psi | 90% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 57,159 psi | 88% | 2631 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,851 psi | 80% | 2575 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 84% | 56,057 psi | 86% | 2536 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,086 psi | 86% | 2635 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,608 psi | 87% | 2690 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,246 psi | 88% | 2759 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,463 psi | 87% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 58,682 psi | 90% | 2703 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,585 psi | 70% | 2680 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,623 psi | 87% | 2598 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,463 psi | 87% | 2644 fps | 98.9% |
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 2495 | <<locked>> | 80% | 51,953 psi | 80% | 2451 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,541 psi | 69% | 2375 fps | 97.6% |
| Accurate 3100 | <<locked>> | 84% | 31,502 psi | 48% | 2211 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 49,255 psi | 76% | 2457 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,478 psi | 58% | 2349 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 80% | 54,476 psi | 84% | 2569 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 46,383 psi | 71% | 2438 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 38,856 psi | 60% | 2382 fps | 95% |
| ADI AR 2213 | <<locked>> | 94% | 44,889 psi | 69% | 2526 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,082 psi | 79% | 2635 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 38,827 psi | 60% | 2385 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,862 psi | 72% | 2461 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,024 psi | 77% | 2523 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,579 psi | 56% | 2359 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,278 psi | 64% | 2470 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 38,464 psi | 59% | 2379 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 38,595 psi | 59% | 2425 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,861 psi | 41% | 2146 fps | 97.3% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,269 psi | 47% | 2251 fps | 95.4% |
| Alliant Reloder-26 | 66.3 gr | 80% | 28,413 psi | 44% | 2241 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 54,288 psi | 84% | 2589 fps | 100% |
| Bofors RP15 | <<locked>> | 92% | 38,087 psi | 59% | 2415 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 47,224 psi | 73% | 2474 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 38,595 psi | 59% | 2425 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 41,626 psi | 64% | 2362 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 80% | 47,427 psi | 73% | 2484 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 39,363 psi | 61% | 2392 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 42,395 psi | 65% | 2408 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 94% | 48,051 psi | 74% | 2533 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 47,065 psi | 72% | 2516 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 55,114 psi | 85% | 2575 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,113 psi | 52% | 2260 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,692 psi | 80% | 2562 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 37,898 psi | 58% | 2474 fps | 95.3% |
| Hodgdon Superformance | 68.4 gr | 80% | 38,218 psi | 59% | 2402 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 42% | 1414 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,649 psi | 81% | 2530 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,762 psi | 75% | 2467 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,937 psi | 78% | 2497 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 37,231 psi | 57% | 2297 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,989 psi | 66% | 2388 fps | 97.9% |
| IMR 4831 | <<locked>> | 80% | 36,042 psi | 55% | 2306 fps | 98.7% |
| IMR 4895 | <<locked>> | 80% | 51,285 psi | 79% | 2546 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,992 psi | 72% | 2480 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 45,716 psi | 70% | 2556 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 80% | 54,940 psi | 85% | 2543 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 53,301 psi | 82% | 2497 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,950 psi | 75% | 2464 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,538 psi | 62% | 2346 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 38,653 psi | 59% | 2326 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 30,676 psi | 47% | 2192 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 53,403 psi | 82% | 2516 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,998 psi | 83% | 2510 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,356 psi | 76% | 2510 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,059 psi | 60% | 2369 fps | 95% |
| Norma MRP | <<locked>> | 86% | 35,230 psi | 54% | 2382 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 37,246 psi | 57% | 2343 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 49,574 psi | 76% | 2533 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 42,395 psi | 65% | 2507 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 36,071 psi | 55% | 2333 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 94% | 37,652 psi | 58% | 2395 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,818 psi | 43% | 1450 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,543 psi | 73% | 2470 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 54,070 psi | 83% | 2631 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,845 psi | 67% | 2513 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,072 psi | 57% | 2365 fps | 98.6% |
| ReloadSwiss RS 70 | 65.7 gr | 80% | 36,027 psi | 55% | 2372 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 34,867 psi | 54% | 2402 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 50,850 psi | 78% | 2474 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,411 psi | 68% | 2425 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 42,917 psi | 66% | 2415 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 37,463 psi | 58% | 2362 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 41,626 psi | 64% | 2362 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,538 psi | 62% | 2346 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,940 psi | 85% | 2543 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,950 psi | 75% | 2464 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,653 psi | 59% | 2326 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,469 psi | 70% | 2474 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,895 psi | 81% | 2543 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,940 psi | 83% | 2448 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,643 psi | 70% | 2329 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,508 psi | 61% | 2293 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,581 psi | 61% | 2408 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 53,896 psi | 83% | 2451 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,846 psi | 69% | 2425 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 46,688 psi | 72% | 2457 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,794 psi | 52% | 2306 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 35,781 psi | 55% | 2300 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 54,534 psi | 84% | 2431 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,024 psi | 78% | 2434 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,169 psi | 79% | 2451 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,656 psi | 66% | 2359 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,653 psi | 59% | 2343 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 37,434 psi | 58% | 2329 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 49,342 psi | 76% | 2448 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,029 psi | 59% | 2343 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 29,530 psi | 45% | 2211 fps | 97.3% |
| Vihtavuori N560 | <<locked>> | 94% | 46,601 psi | 72% | 2589 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,724 psi | 58% | 2316 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 39,552 psi | 61% | 2395 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,656 psi | 36% | 2116 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,837 psi | 81% | 2549 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,016 psi | 62% | 2382 fps | 95.5% |
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 103 powders for .33 Nosler loaded with the .338 | 250gr | Nosler Partition. Alliant Reloder-26 delivers the highest muzzle velocity at 2,808 fps; across all powders the maximum-charge window runs from 1,585 fps to 2,808 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 250.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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 Reloder-26, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .33 Nosler with the .338 | 250gr | 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.