Load Specifications
Bullet Manufacturer:Fox Bullets
Bullet Weight:210 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.340 Weath. Mag. load data
Case Length (l3):2.825"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:100 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.5
Load data in caliber .340 Weath. Mag. with .338 | 210gr | Fox Classic Hunter bullet and 103 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 Alliant Reloder-17.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 54,491 psi | 85% | 2736 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,826 psi | 89% | 2805 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,085 psi | 86% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,999 psi | 88% | 2828 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,106 psi | 69% | 2733 fps | 97.9% |
| Accurate 4064 | <<locked>> | 90% | 56,884 psi | 89% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,551 psi | 90% | 2963 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,246 psi | 90% | 2897 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,998 psi | 86% | 2851 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,938 psi | 81% | 2887 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,086 psi | 88% | 2841 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,508 psi | 90% | 2808 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,653 psi | 90% | 3028 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,100 psi | 86% | 2871 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,608 psi | 87% | 2894 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,955 psi | 86% | 2966 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,347 psi | 88% | 2999 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,995 psi | 80% | 2877 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,930 psi | 66% | 2762 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,738 psi | 58% | 2657 fps | 96.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,195 psi | 74% | 2933 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,276 psi | 90% | 2917 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,651 psi | 87% | 2884 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,564 psi | 87% | 2864 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,624 psi | 90% | 2822 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,666 psi | 87% | 2874 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,623 psi | 89% | 2904 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 56,594 psi | 89% | 2963 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 94% | 57,072 psi | 89% | 2923 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 84% | 54,244 psi | 85% | 2854 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,839 psi | 86% | 2887 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,696 psi | 90% | 2943 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,246 psi | 90% | 3005 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,650 psi | 56% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,608 psi | 87% | 2858 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,520 psi | 85% | 2831 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,288 psi | 85% | 2828 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,537 psi | 90% | 2867 fps | 99% |
| IMR 4350 | <<locked>> | 98% | 56,217 psi | 88% | 2894 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,595 psi | 90% | 2894 fps | 99% |
| IMR 4831 | <<locked>> | 98% | 54,259 psi | 85% | 2900 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,058 psi | 89% | 2923 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,086 psi | 88% | 2841 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,116 psi | 90% | 2864 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,594 psi | 89% | 2822 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,580 psi | 90% | 2871 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,927 psi | 89% | 2887 fps | 99.7% |
| Lovex S070 | <<locked>> | 96% | 54,476 psi | 85% | 2871 fps | 98.9% |
| Norma 201 | <<locked>> | 86% | 55,666 psi | 87% | 2835 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,521 psi | 89% | 2838 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,795 psi | 86% | 2881 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,000 psi | 89% | 2946 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 47,079 psi | 74% | 2890 fps | 97.6% |
| Norma URP | <<locked>> | 98% | 56,449 psi | 88% | 2949 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,579 psi | 87% | 2907 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,201 psi | 87% | 2949 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 56,449 psi | 88% | 2871 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,115 psi | 88% | 2884 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,898 psi | 89% | 2848 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,129 psi | 57% | 1788 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,869 psi | 89% | 2887 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,362 psi | 88% | 2963 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,912 psi | 88% | 2992 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,464 psi | 90% | 2989 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,608 psi | 89% | 3022 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,376 psi | 88% | 2812 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,333 psi | 88% | 2838 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,521 psi | 87% | 2877 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,911 psi | 84% | 2864 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,792 psi | 78% | 2861 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 55,564 psi | 87% | 2864 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,927 psi | 89% | 2887 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,116 psi | 90% | 2864 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,580 psi | 90% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,476 psi | 85% | 2871 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,450 psi | 90% | 2940 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,795 psi | 86% | 2848 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,709 psi | 87% | 2871 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,159 psi | 90% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,273 psi | 85% | 2726 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,217 psi | 90% | 2841 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 2854 fps | 96.6% |
| Somchem S321 | <<locked>> | 82% | 57,334 psi | 90% | 2874 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,521 psi | 89% | 2766 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,520 psi | 85% | 2835 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,666 psi | 87% | 2874 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,621 psi | 86% | 2946 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,357 psi | 79% | 2838 fps | 97.7% |
| Vihtavuori N130 | <<locked>> | 82% | 56,913 psi | 89% | 2726 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,537 psi | 90% | 2749 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,347 psi | 88% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,116 psi | 90% | 2812 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,450 psi | 90% | 2851 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,201 psi | 87% | 2890 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,550 psi | 89% | 2841 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,303 psi | 87% | 2815 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,288 psi | 85% | 2897 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,325 psi | 73% | 2835 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,477 psi | 87% | 2867 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,942 psi | 89% | 2890 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,840 psi | 89% | 2966 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,405 psi | 59% | 2785 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,796 psi | 87% | 2877 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 51,169 psi | 80% | 2690 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,424 psi | 68% | 2615 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,271 psi | 80% | 2776 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,801 psi | 67% | 2605 fps | 95.5% |
| Accurate 3100 | <<locked>> | 94% | 35,679 psi | 56% | 2562 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,118 psi | 64% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,400 psi | 48% | 2448 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 47,282 psi | 74% | 2740 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,234 psi | 63% | 2595 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 45,571 psi | 71% | 2772 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,458 psi | 78% | 2743 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,183 psi | 79% | 2717 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,410 psi | 68% | 2789 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,001 psi | 63% | 2615 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,859 psi | 67% | 2680 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,951 psi | 49% | 2470 fps | 95.6% |
| Alliant Reloder-17 | 65.8 gr | 80% | 34,606 psi | 54% | 2598 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,744 psi | 70% | 2762 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,745 psi | 42% | 2375 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,563 psi | 54% | 2602 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,851 psi | 51% | 2608 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,818 psi | 73% | 2753 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 39,653 psi | 62% | 2618 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,437 psi | 63% | 2592 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,908 psi | 80% | 2726 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,588 psi | 76% | 2769 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,495 psi | 63% | 2628 fps | 98% |
| Hodgdon H414 | <<locked>> | 84% | 37,623 psi | 59% | 2618 fps | 95% |
| Hodgdon H4350 | <<locked>> | 86% | 43,932 psi | 69% | 2700 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 47,747 psi | 75% | 2753 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,253 psi | 44% | 2365 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,005 psi | 69% | 2726 fps | 100% |
| Hodgdon Superformance | 74.7 gr | 86% | 39,769 psi | 62% | 2687 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 42% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,832 psi | 72% | 2703 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,819 psi | 75% | 2736 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,279 psi | 66% | 2628 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,628 psi | 70% | 2651 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 40,915 psi | 64% | 2625 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,610 psi | 62% | 2575 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 29,689 psi | 47% | 2411 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 43,961 psi | 69% | 2710 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 49,458 psi | 78% | 2743 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,673 psi | 73% | 2713 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,036 psi | 74% | 2674 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,090 psi | 66% | 2625 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,432 psi | 54% | 2467 fps | 95.3% |
| Lovex S070 | <<locked>> | 84% | 37,159 psi | 58% | 2549 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,064 psi | 72% | 2687 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,731 psi | 73% | 2694 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,235 psi | 66% | 2667 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 46,282 psi | 73% | 2769 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 40,915 psi | 64% | 2766 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 30,908 psi | 48% | 2454 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,090 psi | 66% | 2687 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 36,898 psi | 58% | 2608 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 49,342 psi | 77% | 2759 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,124 psi | 77% | 2776 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,229 psi | 83% | 2792 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,818 psi | 42% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,785 psi | 64% | 2608 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,614 psi | 71% | 2789 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,869 psi | 58% | 2661 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,460 psi | 51% | 2523 fps | 95.8% |
| ReloadSwiss RS 70 | 70.1 gr | 84% | 34,751 psi | 54% | 2592 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 50,096 psi | 79% | 2720 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,772 psi | 69% | 2638 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,231 psi | 58% | 2562 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 50,401 psi | 79% | 2805 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 96% | 43,526 psi | 68% | 2746 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 84% | 40,437 psi | 63% | 2592 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,432 psi | 54% | 2467 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,673 psi | 73% | 2713 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,090 psi | 66% | 2625 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 37,159 psi | 58% | 2549 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,377 psi | 60% | 2615 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,790 psi | 75% | 2736 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,716 psi | 72% | 2710 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,471 psi | 74% | 2631 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,682 psi | 62% | 2503 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,537 psi | 60% | 2520 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,120 psi | 68% | 2740 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 53,737 psi | 84% | 2825 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,992 psi | 74% | 2631 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,616 psi | 75% | 2730 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 37,956 psi | 59% | 2566 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 27,673 psi | 43% | 2408 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 41,249 psi | 65% | 2671 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 53,505 psi | 84% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,979 psi | 75% | 2621 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,700 psi | 68% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,193 psi | 69% | 2625 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,187 psi | 57% | 2503 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,285 psi | 51% | 2461 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 49,647 psi | 78% | 2743 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,656 psi | 67% | 2621 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,821 psi | 50% | 2461 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 28,848 psi | 45% | 2451 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,053 psi | 50% | 2438 fps | 98% |
| Winchester 748 | <<locked>> | 80% | 49,632 psi | 78% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,797 psi | 59% | 2621 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,760 psi | 42% | 2451 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,411 psi | 71% | 2717 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 103 powders for .340 Weath. Mag. loaded with the .338 | 210gr | Fox Classic Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,749 fps to 3,028 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 (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.338" calls for a 1:12.5 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .340 Weath. Mag. with the .338 | 210gr | Fox Classic Hunter 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.