Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:210 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:1:16.5
Load data in caliber .338 Blaser Mag. with .338 | 210gr | Nosler Partition bullet and 99 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-17 and ReloadSwiss RS 60.
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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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 2015 | <<locked>> | 82% | 54,926 psi | 90% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,114 psi | 89% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 52,721 psi | 87% | 2749 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,483 psi | 73% | 2710 fps | 97.7% |
| Accurate 4064 | <<locked>> | 88% | 54,259 psi | 89% | 2795 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,114 psi | 89% | 2887 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 54,143 psi | 89% | 2825 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 51,938 psi | 85% | 2779 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,112 psi | 86% | 2864 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 52,924 psi | 87% | 2769 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,172 psi | 89% | 2743 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,766 psi | 88% | 2943 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 51,938 psi | 85% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,417 psi | 86% | 2818 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,955 psi | 90% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 52,779 psi | 87% | 2923 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,082 psi | 84% | 2851 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,293 psi | 69% | 2743 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,173 psi | 61% | 2638 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,587 psi | 78% | 2913 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,867 psi | 88% | 2841 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 52,562 psi | 86% | 2815 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,547 psi | 86% | 2789 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,563 psi | 90% | 2753 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,315 psi | 86% | 2799 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,272 psi | 87% | 2825 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 53,069 psi | 87% | 2884 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 92% | 53,693 psi | 88% | 2844 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 84% | 54,679 psi | 90% | 2835 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,955 psi | 90% | 2864 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,143 psi | 89% | 2867 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,432 psi | 88% | 2920 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 59% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 52,431 psi | 86% | 2785 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,853 psi | 90% | 2812 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,723 psi | 90% | 2808 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,433 psi | 89% | 2792 fps | 98.5% |
| IMR 4350 | <<locked>> | 96% | 52,968 psi | 87% | 2815 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,404 psi | 89% | 2818 fps | 98.4% |
| IMR 4831 | <<locked>> | 98% | 54,491 psi | 89% | 2877 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 53,766 psi | 88% | 2848 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 52,924 psi | 87% | 2769 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 53,925 psi | 89% | 2799 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,417 psi | 88% | 2749 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,563 psi | 90% | 2802 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,969 psi | 89% | 2815 fps | 99.3% |
| Lovex S070 | <<locked>> | 96% | 54,940 psi | 90% | 2851 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 52,953 psi | 87% | 2769 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,359 psi | 88% | 2766 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,984 psi | 90% | 2854 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,447 psi | 88% | 2864 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 47,340 psi | 78% | 2871 fps | 97.4% |
| Norma URP | <<locked>> | 96% | 53,098 psi | 87% | 2874 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 52,069 psi | 85% | 2831 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 51,851 psi | 85% | 2871 fps | 98.9% |
| Ramshot TAC | <<locked>> | 82% | 53,127 psi | 87% | 2792 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 52,765 psi | 87% | 2808 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,318 psi | 60% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,621 psi | 88% | 2812 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 52,910 psi | 87% | 2884 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,489 psi | 86% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,737 psi | 88% | 2907 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,055 psi | 87% | 2936 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 53,896 psi | 88% | 2749 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,388 psi | 88% | 2766 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 52,460 psi | 86% | 2805 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,041 psi | 89% | 2838 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,067 psi | 82% | 2835 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 92% | 52,547 psi | 86% | 2789 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,969 psi | 89% | 2815 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 53,925 psi | 89% | 2799 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,563 psi | 90% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,940 psi | 90% | 2851 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,027 psi | 89% | 2867 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,576 psi | 85% | 2769 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 52,533 psi | 86% | 2795 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,201 psi | 89% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,491 psi | 89% | 2703 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,954 psi | 89% | 2766 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,574 psi | 81% | 2828 fps | 96.4% |
| Somchem S335 | <<locked>> | 84% | 53,722 psi | 88% | 2703 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,882 psi | 90% | 2815 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 52,852 psi | 87% | 2805 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,824 psi | 90% | 2923 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,778 psi | 83% | 2815 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 84% | 54,563 psi | 90% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,301 psi | 88% | 2730 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 53,969 psi | 89% | 2746 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,998 psi | 89% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 51,866 psi | 85% | 2815 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 53,316 psi | 88% | 2769 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,040 psi | 85% | 2743 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,520 psi | 90% | 2874 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,760 psi | 77% | 2815 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 51,822 psi | 85% | 2792 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,519 psi | 88% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,287 psi | 87% | 2887 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,826 psi | 62% | 2766 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,417 psi | 86% | 2802 fps | 100% |
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 2015 | <<locked>> | 80% | 51,561 psi | 85% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,556 psi | 73% | 2605 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,352 psi | 71% | 2585 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 36,216 psi | 59% | 2549 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,134 psi | 69% | 2608 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,154 psi | 51% | 2441 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 47,674 psi | 78% | 2720 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,538 psi | 67% | 2572 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 45,919 psi | 75% | 2749 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,748 psi | 82% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,691 psi | 83% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,642 psi | 72% | 2766 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,451 psi | 66% | 2598 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,308 psi | 71% | 2661 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,401 psi | 52% | 2454 fps | 95.5% |
| Alliant Reloder-17 | 64.3 gr | 80% | 34,998 psi | 57% | 2579 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,150 psi | 74% | 2743 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,427 psi | 45% | 2369 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,998 psi | 57% | 2582 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,518 psi | 55% | 2598 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,108 psi | 77% | 2733 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 40,350 psi | 66% | 2605 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,988 psi | 67% | 2575 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,358 psi | 84% | 2707 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,950 psi | 80% | 2749 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,901 psi | 67% | 2608 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 40,741 psi | 67% | 2657 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 44,251 psi | 73% | 2677 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 48,138 psi | 79% | 2730 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,877 psi | 47% | 2356 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,280 psi | 73% | 2707 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 43,120 psi | 71% | 2733 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 44% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,151 psi | 76% | 2684 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,138 psi | 79% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,598 psi | 70% | 2608 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,991 psi | 74% | 2628 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 41,263 psi | 68% | 2608 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,987 psi | 66% | 2556 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 30,298 psi | 50% | 2402 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 44,382 psi | 73% | 2690 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 49,748 psi | 82% | 2723 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,282 psi | 78% | 2697 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,253 psi | 78% | 2651 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,569 psi | 70% | 2608 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,114 psi | 58% | 2457 fps | 95.3% |
| Lovex S070 | <<locked>> | 84% | 37,826 psi | 62% | 2536 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,775 psi | 77% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,108 psi | 77% | 2674 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,699 psi | 70% | 2651 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 46,644 psi | 77% | 2749 fps | 95.2% |
| Norma MRP | <<locked>> | 96% | 41,365 psi | 68% | 2749 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 31,401 psi | 52% | 2441 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 42,438 psi | 70% | 2664 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 37,391 psi | 61% | 2592 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,676 psi | 82% | 2736 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,443 psi | 81% | 2756 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 45% | 1588 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,321 psi | 68% | 2592 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,064 psi | 76% | 2769 fps | 99.6% |
| ReloadSwiss RS 60 | 64.3 gr | 80% | 37,217 psi | 61% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,170 psi | 54% | 2516 fps | 95.9% |
| ReloadSwiss RS 70 | 68.6 gr | 84% | 35,288 psi | 58% | 2575 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 50,662 psi | 83% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,483 psi | 73% | 2621 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,855 psi | 62% | 2549 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 50,517 psi | 83% | 2779 fps | 95% |
| Rottweil R 905 | <<locked>> | 98% | 46,673 psi | 77% | 2779 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 84% | 40,988 psi | 67% | 2575 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,114 psi | 58% | 2457 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,282 psi | 78% | 2697 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,569 psi | 70% | 2608 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 37,826 psi | 62% | 2536 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,841 psi | 64% | 2598 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,240 psi | 79% | 2717 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,151 psi | 76% | 2690 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,935 psi | 79% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,103 psi | 66% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,030 psi | 64% | 2503 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,224 psi | 76% | 2772 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 47,572 psi | 78% | 2615 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,964 psi | 79% | 2710 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,667 psi | 63% | 2552 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 28,282 psi | 46% | 2398 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 41,626 psi | 68% | 2651 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 48,341 psi | 79% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,266 psi | 73% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,570 psi | 73% | 2608 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,695 psi | 60% | 2487 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,808 psi | 54% | 2444 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 50,009 psi | 82% | 2720 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,960 psi | 71% | 2598 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,256 psi | 53% | 2444 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 29,486 psi | 48% | 2441 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,489 psi | 53% | 2421 fps | 98% |
| Winchester 748 | <<locked>> | 80% | 50,082 psi | 82% | 2766 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,872 psi | 67% | 2661 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,398 psi | 45% | 2444 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,730 psi | 75% | 2697 fps | 99.9% |
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 99 powders for .338 Blaser Mag. loaded with the .338 | 210gr | Nosler Partition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,943 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 210.0 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, 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-17, ReloadSwiss RS 60 rank at the top here: for .338 Blaser Mag. with the .338 | 210gr | 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.