Load Specifications
Bullet Manufacturer:North Fork
Bullet Weight:225 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338 Blaser Mag. load data
Case Length (l3):2.5078"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:92.6 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:60,916 psi
Recommended Twist Rate:1:15.0
Load data in caliber .338 Blaser Mag. with .338 | 225gr | NorthFork Bonded Core bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-16 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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 51,996 psi | 85% | 2615 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,795 psi | 88% | 2671 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,890 psi | 75% | 2641 fps | 98.5% |
| Accurate 4064 | <<locked>> | 86% | 52,112 psi | 86% | 2661 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 51,996 psi | 85% | 2756 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 82% | 52,054 psi | 85% | 2690 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 52,997 psi | 87% | 2694 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,374 psi | 88% | 2785 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,244 psi | 89% | 2687 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 51,416 psi | 84% | 2805 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,388 psi | 88% | 2717 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,606 psi | 88% | 2733 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,011 psi | 87% | 2808 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,041 psi | 89% | 2835 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,359 psi | 86% | 2776 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,180 psi | 76% | 2720 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,352 psi | 71% | 2667 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,159 psi | 63% | 2579 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,994 psi | 80% | 2841 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,071 psi | 90% | 2756 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 53,824 psi | 88% | 2730 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,180 psi | 76% | 2720 fps | 96.3% |
| Bofors RP7 | <<locked>> | 92% | 53,650 psi | 88% | 2707 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,606 psi | 88% | 2717 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,476 psi | 89% | 2743 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 54,520 psi | 90% | 2805 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 92% | 54,795 psi | 90% | 2762 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 82% | 52,576 psi | 86% | 2700 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,084 psi | 87% | 2733 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 52,011 psi | 85% | 2730 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,839 psi | 90% | 2841 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 59% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,447 psi | 88% | 2697 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 52,765 psi | 87% | 2677 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 52,591 psi | 86% | 2677 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 52,185 psi | 86% | 2657 fps | 98.6% |
| IMR 4350 | <<locked>> | 96% | 54,201 psi | 89% | 2740 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 52,214 psi | 86% | 2687 fps | 98.6% |
| IMR 4831 | <<locked>> | 96% | 52,533 psi | 86% | 2746 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,998 psi | 90% | 2762 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,244 psi | 89% | 2687 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 51,779 psi | 85% | 2664 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,636 psi | 90% | 2667 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 52,576 psi | 86% | 2671 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 51,895 psi | 85% | 2684 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 52,794 psi | 87% | 2720 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,174 psi | 63% | 2500 fps | 96.8% |
| Norma 201 | <<locked>> | 84% | 54,099 psi | 89% | 2684 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,607 psi | 90% | 2680 fps | 100% |
| Norma 203B | <<locked>> | 86% | 52,895 psi | 87% | 2720 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,723 psi | 90% | 2785 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 48,675 psi | 80% | 2799 fps | 98.2% |
| Norma URP | <<locked>> | 96% | 54,491 psi | 89% | 2792 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 53,403 psi | 88% | 2746 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 53,185 psi | 87% | 2792 fps | 99.4% |
| Ramshot TAC | <<locked>> | 82% | 54,114 psi | 89% | 2710 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,954 psi | 89% | 2723 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,448 psi | 60% | 1703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,824 psi | 90% | 2730 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,302 psi | 89% | 2799 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,838 psi | 88% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 51,561 psi | 85% | 2776 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,288 psi | 89% | 2858 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 55,013 psi | 90% | 2657 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,592 psi | 90% | 2680 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,940 psi | 89% | 2723 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 51,822 psi | 85% | 2707 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,416 psi | 84% | 2762 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 92% | 53,650 psi | 88% | 2707 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 51,895 psi | 85% | 2684 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 82% | 51,779 psi | 85% | 2664 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 52,576 psi | 86% | 2671 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 52,794 psi | 87% | 2720 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 52,069 psi | 85% | 2733 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,794 psi | 87% | 2690 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,737 psi | 88% | 2710 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 51,895 psi | 85% | 2572 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 52,504 psi | 86% | 2575 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,085 psi | 90% | 2684 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,923 psi | 84% | 2756 fps | 97.3% |
| Somchem S335 | <<locked>> | 84% | 54,810 psi | 90% | 2615 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 52,489 psi | 86% | 2677 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 54,172 psi | 89% | 2723 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 52,910 psi | 87% | 2792 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,214 psi | 86% | 2743 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 52,330 psi | 86% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,737 psi | 90% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,085 psi | 90% | 2657 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 52,040 psi | 85% | 2651 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,388 psi | 88% | 2736 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,817 psi | 74% | 2605 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 82% | 54,491 psi | 89% | 2684 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,272 psi | 87% | 2657 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 52,373 psi | 86% | 2743 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,341 psi | 79% | 2743 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,084 psi | 87% | 2710 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,810 psi | 90% | 2733 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,752 psi | 90% | 2808 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,015 psi | 64% | 2703 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,534 psi | 88% | 2717 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,762 psi | 80% | 2677 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 45,745 psi | 75% | 2523 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,367 psi | 73% | 2513 fps | 96.4% |
| Accurate 3100 | <<locked>> | 92% | 35,041 psi | 58% | 2434 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 43,279 psi | 71% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,198 psi | 53% | 2382 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 80% | 48,863 psi | 80% | 2641 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,452 psi | 68% | 2500 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 44,092 psi | 72% | 2625 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,908 psi | 84% | 2638 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,918 psi | 74% | 2694 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,452 psi | 68% | 2523 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,440 psi | 73% | 2585 fps | 99.6% |
| Alliant Reloder-16 | 57.9 gr | 80% | 32,169 psi | 53% | 2392 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,013 psi | 59% | 2513 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,468 psi | 71% | 2618 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 43,250 psi | 71% | 2664 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,484 psi | 43% | 2260 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,823 psi | 56% | 2474 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 88% | 32,111 psi | 53% | 2480 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,196 psi | 79% | 2651 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 41,365 psi | 68% | 2530 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 43,250 psi | 71% | 2664 fps | 95.5% |
| Bofors RP7 | <<locked>> | 82% | 39,334 psi | 65% | 2454 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,314 psi | 83% | 2667 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,076 psi | 69% | 2539 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 36,738 psi | 60% | 2480 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 84% | 42,554 psi | 70% | 2552 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 49,342 psi | 81% | 2648 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,646 psi | 49% | 2297 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,513 psi | 75% | 2628 fps | 100% |
| Hodgdon Superformance | 69.2 gr | 84% | 38,377 psi | 63% | 2543 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,760 psi | 44% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,239 psi | 78% | 2602 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,559 psi | 81% | 2631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,540 psi | 71% | 2530 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,021 psi | 76% | 2556 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 39,711 psi | 65% | 2487 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,479 psi | 63% | 2434 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,227 psi | 51% | 2343 fps | 96.3% |
| IMR 4895 | <<locked>> | 80% | 45,571 psi | 75% | 2615 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 50,908 psi | 84% | 2638 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,486 psi | 80% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,443 psi | 80% | 2572 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,772 psi | 72% | 2533 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,969 psi | 59% | 2388 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 36,376 psi | 60% | 2418 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 33,634 psi | 55% | 2405 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 47,834 psi | 79% | 2589 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,240 psi | 79% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,845 psi | 72% | 2575 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 44,759 psi | 73% | 2621 fps | 95.4% |
| Norma MRP | <<locked>> | 92% | 37,188 psi | 61% | 2566 fps | 95% |
| Norma URP | <<locked>> | 80% | 32,343 psi | 53% | 2382 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 43,642 psi | 72% | 2592 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 35,955 psi | 59% | 2474 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 50,720 psi | 83% | 2657 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,488 psi | 83% | 2671 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,195 psi | 45% | 1519 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,293 psi | 69% | 2520 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,340 psi | 78% | 2690 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,290 psi | 63% | 2572 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,778 psi | 52% | 2395 fps | 96% |
| ReloadSwiss RS 70 | 63.4 gr | 80% | 31,705 psi | 52% | 2398 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 51,880 psi | 85% | 2615 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,469 psi | 75% | 2543 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,943 psi | 64% | 2477 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 48,776 psi | 80% | 2657 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 94% | 42,235 psi | 69% | 2602 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 39,334 psi | 65% | 2454 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,969 psi | 59% | 2388 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,486 psi | 80% | 2615 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,772 psi | 72% | 2533 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,376 psi | 60% | 2418 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,885 psi | 65% | 2526 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,342 psi | 81% | 2638 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,224 psi | 78% | 2612 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,791 psi | 80% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,915 psi | 67% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,507 psi | 62% | 2385 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 41,843 psi | 69% | 2595 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 48,588 psi | 80% | 2530 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,081 psi | 81% | 2628 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,653 psi | 65% | 2484 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 29,138 psi | 48% | 2339 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 40,074 psi | 66% | 2530 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 49,255 psi | 81% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,295 psi | 74% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,687 psi | 75% | 2526 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,666 psi | 62% | 2418 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,779 psi | 55% | 2382 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 98% | 42,177 psi | 69% | 2559 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 51,053 psi | 84% | 2635 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,121 psi | 72% | 2523 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,286 psi | 55% | 2385 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 84% | 28,514 psi | 47% | 2333 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,257 psi | 55% | 2356 fps | 98.7% |
| Winchester 748 | <<locked>> | 80% | 51,343 psi | 84% | 2684 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 36,738 psi | 60% | 2480 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,513 psi | 44% | 2343 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,920 psi | 77% | 2615 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,556 psi | 75% | 2621 fps | 95.7% |
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 101 powders for .338 Blaser Mag. loaded with the .338 | 225gr | NorthFork Bonded Core. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,858 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, Alliant Reloder-16, Hodgdon Superformance rank at the top here: for .338 Blaser Mag. with the .338 | 225gr | NorthFork Bonded Core 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.