Load Specifications
Bullet:.338 | 225gr | Swift A-Frame
Bullet Manufacturer:Swift
Bullet Weight:225 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:1:16.5
Load data in caliber .33 Nosler with .338 | 225gr | Swift A-Frame bullet and 109 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and ReloadSwiss RS 62.
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>> | 84% | 56,115 psi | 86% | 2651 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,493 psi | 88% | 2720 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,647 psi | 78% | 2703 fps | 99.2% |
| Accurate 4064 | <<locked>> | 86% | 56,463 psi | 87% | 2707 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,797 psi | 87% | 2808 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,593 psi | 86% | 2733 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,623 psi | 87% | 2736 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,914 psi | 89% | 2851 fps | 98.4% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 51,880 psi | 80% | 2782 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,798 psi | 89% | 2726 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,695 psi | 86% | 2858 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 57,725 psi | 89% | 2844 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,305 psi | 88% | 2759 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,696 psi | 89% | 2782 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 57,435 psi | 88% | 2861 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,274 psi | 85% | 2838 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,898 psi | 88% | 2835 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,459 psi | 78% | 2782 fps | 97.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,645 psi | 73% | 2723 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,655 psi | 64% | 2644 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,433 psi | 84% | 2910 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,259 psi | 85% | 2749 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,398 psi | 71% | 2707 fps | 96.3% |
| Bofors RP3 | <<locked>> | 88% | 58,204 psi | 90% | 2776 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,459 psi | 78% | 2782 fps | 97.4% |
| Bofors RP7 | <<locked>> | 92% | 57,566 psi | 89% | 2759 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,667 psi | 89% | 2759 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 58,813 psi | 90% | 2795 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 55,550 psi | 85% | 2808 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 90% | 55,434 psi | 85% | 2766 fps | 98.3% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,622 psi | 86% | 2789 fps | 96.2% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 54,476 psi | 84% | 2772 fps | 96% |
| Hodgdon H4895 | <<locked>> | 82% | 56,202 psi | 86% | 2740 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,856 psi | 89% | 2785 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,130 psi | 86% | 2776 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,550 psi | 85% | 2844 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,260 psi | 56% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,087 psi | 88% | 2740 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,898 psi | 88% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,028 psi | 86% | 2717 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,361 psi | 85% | 2703 fps | 99.1% |
| IMR 4350 | <<locked>> | 96% | 58,276 psi | 90% | 2789 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,825 psi | 86% | 2736 fps | 99.1% |
| IMR 4831 | <<locked>> | 96% | 57,087 psi | 88% | 2795 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,637 psi | 86% | 2759 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,392 psi | 88% | 2779 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 82% | 57,798 psi | 89% | 2726 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,941 psi | 86% | 2707 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,769 psi | 89% | 2703 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,304 psi | 87% | 2713 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,796 psi | 86% | 2733 fps | 99.8% |
| Lovex S070 | <<locked>> | 94% | 56,884 psi | 88% | 2772 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,163 psi | 65% | 2559 fps | 97.8% |
| Norma 201 | <<locked>> | 84% | 57,711 psi | 89% | 2723 fps | 100% |
| Norma 202 | <<locked>> | 84% | 58,494 psi | 90% | 2720 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,971 psi | 88% | 2769 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,535 psi | 85% | 2789 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 53,461 psi | 82% | 2861 fps | 99.1% |
| Norma URP | <<locked>> | 94% | 55,448 psi | 85% | 2792 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 57,638 psi | 89% | 2795 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 57,827 psi | 89% | 2844 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,034 psi | 68% | 2644 fps | 96.4% |
| Ramshot TAC | <<locked>> | 82% | 57,885 psi | 89% | 2756 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,812 psi | 89% | 2769 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,869 psi | 57% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 58,740 psi | 90% | 2782 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 58,668 psi | 90% | 2848 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 58,769 psi | 90% | 2881 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,536 psi | 87% | 2831 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,172 psi | 85% | 2858 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 58,581 psi | 90% | 2697 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 58,363 psi | 90% | 2723 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 58,276 psi | 90% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,985 psi | 86% | 2766 fps | 97.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,086 psi | 86% | 2822 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 92% | 57,566 psi | 89% | 2759 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,796 psi | 86% | 2733 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,941 psi | 86% | 2707 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,304 psi | 87% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,884 psi | 88% | 2772 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,086 psi | 86% | 2779 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,652 psi | 87% | 2736 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,392 psi | 88% | 2753 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 58,653 psi | 90% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,883 psi | 86% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,550 psi | 85% | 2687 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,593 psi | 86% | 2815 fps | 98.3% |
| Somchem S335 | <<locked>> | 84% | 58,218 psi | 90% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,275 psi | 87% | 2723 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 58,146 psi | 89% | 2766 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 57,885 psi | 89% | 2759 fps | 96.6% |
| Somchem S365 | <<locked>> | 98% | 58,233 psi | 90% | 2841 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,898 psi | 88% | 2799 fps | 99% |
| Vihtavuori N133 | <<locked>> | 82% | 55,695 psi | 86% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 58,595 psi | 90% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,405 psi | 85% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,057 psi | 86% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,696 psi | 89% | 2785 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,023 psi | 75% | 2667 fps | 97.5% |
| Vihtavuori N530 | <<locked>> | 82% | 58,291 psi | 90% | 2726 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 57,203 psi | 88% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,884 psi | 88% | 2795 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,374 psi | 82% | 2799 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 53,983 psi | 83% | 2851 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 57,667 psi | 89% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,550 psi | 85% | 2808 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,844 psi | 66% | 2769 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 57,624 psi | 89% | 2762 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,461 psi | 82% | 2740 fps | 97.7% |
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% | 49,385 psi | 76% | 2562 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,268 psi | 73% | 2562 fps | 97.2% |
| Accurate 3100 | <<locked>> | 88% | 33,852 psi | 52% | 2388 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 46,746 psi | 72% | 2569 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,317 psi | 54% | 2431 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 80% | 52,228 psi | 80% | 2684 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,353 psi | 68% | 2543 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 92% | 44,614 psi | 69% | 2628 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 98% | 48,617 psi | 75% | 2723 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,273 psi | 83% | 2680 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,399 psi | 74% | 2743 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 42,018 psi | 65% | 2575 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,599 psi | 69% | 2566 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,747 psi | 73% | 2631 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,693 psi | 53% | 2441 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,088 psi | 60% | 2562 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,092 psi | 68% | 2621 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 41,510 psi | 64% | 2615 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,948 psi | 41% | 2257 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,476 psi | 53% | 2477 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 84% | 30,719 psi | 47% | 2421 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,764 psi | 80% | 2697 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 43,482 psi | 67% | 2651 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 44,860 psi | 69% | 2579 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 41,510 psi | 64% | 2615 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 39,682 psi | 61% | 2451 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,940 psi | 83% | 2707 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,310 psi | 70% | 2585 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 37,231 psi | 57% | 2474 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 82% | 43,033 psi | 66% | 2552 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 98% | 52,040 psi | 80% | 2733 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 98% | 50,995 psi | 78% | 2713 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 52,779 psi | 81% | 2690 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,213 psi | 50% | 2343 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,168 psi | 76% | 2674 fps | 100% |
| Hodgdon Superformance | 72.6 gr | 82% | 38,899 psi | 60% | 2543 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 42% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,502 psi | 78% | 2644 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,214 psi | 82% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,601 psi | 72% | 2572 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,907 psi | 75% | 2598 fps | 98.2% |
| IMR 4350 | <<locked>> | 84% | 40,161 psi | 62% | 2484 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,060 psi | 63% | 2480 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 34,113 psi | 52% | 2392 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 48,979 psi | 75% | 2657 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 50,589 psi | 78% | 2674 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 54,273 psi | 83% | 2680 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,257 psi | 80% | 2657 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,198 psi | 79% | 2612 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,731 psi | 72% | 2572 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,624 psi | 59% | 2434 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 36,840 psi | 57% | 2415 fps | 95.5% |
| Lovex S071 | <<locked>> | 94% | 34,867 psi | 54% | 2411 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 51,082 psi | 79% | 2628 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,532 psi | 79% | 2628 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,108 psi | 72% | 2618 fps | 100% |
| Norma 204 | <<locked>> | 88% | 45,295 psi | 70% | 2618 fps | 95.7% |
| Norma MRP | <<locked>> | 90% | 38,087 psi | 59% | 2569 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 35,259 psi | 54% | 2431 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 47,079 psi | 72% | 2635 fps | 100% |
| Ramshot Hunter | <<locked>> | 80% | 34,214 psi | 53% | 2415 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 40,959 psi | 63% | 2582 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 54,230 psi | 83% | 2703 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,157 psi | 83% | 2717 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,499 psi | 42% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,266 psi | 70% | 2566 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,416 psi | 79% | 2743 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,524 psi | 64% | 2618 fps | 100% |
| ReloadSwiss RS 62 | 66.9 gr | 80% | 34,867 psi | 54% | 2448 fps | 97.1% |
| ReloadSwiss RS 70 | 68 gr | 80% | 34,171 psi | 53% | 2451 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 80% | 55,216 psi | 85% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 48,689 psi | 75% | 2585 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,235 psi | 65% | 2526 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 94% | 49,429 psi | 76% | 2661 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 92% | 43,149 psi | 66% | 2605 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 39,682 psi | 61% | 2451 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,624 psi | 59% | 2434 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,257 psi | 80% | 2657 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,731 psi | 72% | 2572 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,840 psi | 57% | 2415 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,308 psi | 67% | 2575 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,939 psi | 81% | 2684 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,691 psi | 78% | 2657 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,938 psi | 80% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,772 psi | 67% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,753 psi | 58% | 2379 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 42,728 psi | 66% | 2598 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 51,663 psi | 79% | 2566 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,634 psi | 81% | 2674 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,670 psi | 66% | 2526 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 50,720 psi | 78% | 2654 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 31,691 psi | 49% | 2385 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 38,435 psi | 59% | 2480 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 52,431 psi | 81% | 2549 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,718 psi | 75% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,994 psi | 75% | 2566 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,698 psi | 63% | 2457 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,680 psi | 56% | 2431 fps | 97.8% |
| Vihtavuori N165 | <<locked>> | 94% | 40,248 psi | 62% | 2510 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 54,665 psi | 84% | 2677 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,311 psi | 73% | 2559 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,158 psi | 56% | 2431 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 27,543 psi | 42% | 2277 fps | 95.2% |
| Vihtavuori N560 | <<locked>> | 98% | 50,372 psi | 77% | 2792 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,795 psi | 55% | 2402 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 37,362 psi | 57% | 2477 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,324 psi | 39% | 2280 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,430 psi | 78% | 2661 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,453 psi | 67% | 2575 fps | 95.4% |
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 109 powders for .33 Nosler loaded with the .338 | 225gr | Swift A-Frame. Alliant Reloder-26 delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,910 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 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 225.0 gr projectile in 0.338" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, ADI AR 2213 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 70, Hodgdon Superformance, ReloadSwiss RS 62 rank at the top here: for .33 Nosler with the .338 | 225gr | Swift A-Frame 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.