Load Specifications
Bullet Manufacturer:North Fork
Bullet Weight:200 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:1:17.0
Load data in caliber .340 Weath. Mag. with .338 | 200gr | NorthFork Bonded Core bullet and 107 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-16.
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% | 57,319 psi | 90% | 2858 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 56,942 psi | 89% | 2890 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,303 psi | 87% | 2904 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,892 psi | 75% | 2871 fps | 98.5% |
| Accurate 4064 | <<locked>> | 88% | 57,232 psi | 90% | 2946 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,595 psi | 90% | 3048 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 52,286 psi | 82% | 3071 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 84% | 56,594 psi | 89% | 2976 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,259 psi | 85% | 2927 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,347 psi | 87% | 3031 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,303 psi | 87% | 2920 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,029 psi | 89% | 2887 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,811 psi | 89% | 3107 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,027 psi | 86% | 3025 fps | 97.6% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,027 psi | 86% | 3025 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,795 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,100 psi | 86% | 2972 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,708 psi | 86% | 3051 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,144 psi | 88% | 3084 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 3015 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,805 psi | 75% | 2949 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,107 psi | 71% | 2900 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,653 psi | 62% | 2805 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,213 psi | 80% | 3087 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,579 psi | 89% | 2995 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 55,535 psi | 87% | 2966 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,805 psi | 75% | 2949 fps | 96.3% |
| Bofors RP7 | <<locked>> | 92% | 55,100 psi | 86% | 2943 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,811 psi | 89% | 2900 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,100 psi | 86% | 2953 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,130 psi | 88% | 2982 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 56,318 psi | 88% | 3045 fps | 99% |
| Hodgdon H4350 | <<locked>> | 92% | 56,492 psi | 89% | 3005 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 84% | 57,188 psi | 90% | 2986 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,810 psi | 86% | 2969 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,232 psi | 90% | 3022 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,884 psi | 89% | 3087 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,998 psi | 56% | 1824 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,882 psi | 86% | 2933 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,667 psi | 90% | 2959 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,188 psi | 90% | 2959 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,710 psi | 89% | 2943 fps | 98.9% |
| IMR 4350 | <<locked>> | 96% | 55,811 psi | 87% | 2972 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,826 psi | 89% | 2972 fps | 98.9% |
| IMR 4831 | <<locked>> | 96% | 54,331 psi | 85% | 2982 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,536 psi | 89% | 3002 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,303 psi | 87% | 2920 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,956 psi | 89% | 2949 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,680 psi | 87% | 2897 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,334 psi | 90% | 2956 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,623 psi | 89% | 2969 fps | 99.6% |
| Lovex S070 | <<locked>> | 94% | 54,404 psi | 85% | 2956 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,682 psi | 62% | 2717 fps | 96.7% |
| Norma 201 | <<locked>> | 84% | 55,405 psi | 87% | 2917 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,057 psi | 88% | 2917 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,375 psi | 85% | 2959 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,652 psi | 89% | 3028 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 50,647 psi | 79% | 3038 fps | 98.3% |
| Norma URP | <<locked>> | 96% | 56,391 psi | 88% | 3035 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 54,955 psi | 86% | 2982 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,143 psi | 86% | 3031 fps | 99.4% |
| Ramshot TAC | <<locked>> | 82% | 55,463 psi | 87% | 2943 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,564 psi | 87% | 2963 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,666 psi | 57% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,275 psi | 88% | 2966 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,854 psi | 88% | 3041 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,666 psi | 87% | 3077 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,406 psi | 90% | 3071 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,260 psi | 88% | 3104 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,304 psi | 88% | 2894 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,970 psi | 88% | 2917 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,579 psi | 87% | 2963 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2999 fps | 96.7% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,345 psi | 84% | 2999 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 92% | 55,100 psi | 86% | 2943 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,623 psi | 89% | 2969 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,956 psi | 89% | 2949 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,334 psi | 90% | 2956 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,404 psi | 85% | 2956 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,305 psi | 90% | 3025 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,331 psi | 85% | 2923 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,984 psi | 86% | 2946 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,507 psi | 89% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,174 psi | 90% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,739 psi | 89% | 2920 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,852 psi | 83% | 2995 fps | 97.3% |
| Somchem S335 | <<locked>> | 84% | 56,057 psi | 88% | 2844 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,653 psi | 90% | 2966 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,521 psi | 87% | 2956 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,056 psi | 86% | 3035 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,998 psi | 85% | 2976 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 84% | 56,913 psi | 89% | 2828 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,159 psi | 88% | 2877 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,550 psi | 89% | 2890 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,942 psi | 89% | 2930 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,129 psi | 86% | 2972 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,528 psi | 73% | 2835 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 82% | 55,898 psi | 88% | 2920 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,766 psi | 86% | 2890 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,201 psi | 85% | 2979 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 2979 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,940 psi | 86% | 2943 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,391 psi | 88% | 2972 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,550 psi | 89% | 3048 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,596 psi | 64% | 2936 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,187 psi | 86% | 2956 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,618 psi | 79% | 2910 fps | 96.6% |
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% | 53,925 psi | 85% | 2812 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,978 psi | 74% | 2746 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,397 psi | 71% | 2733 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 36,463 psi | 57% | 2644 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 44,440 psi | 70% | 2749 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,301 psi | 52% | 2589 fps | 96.4% |
| Accurate High Country | <<locked>> | 98% | 48,617 psi | 76% | 3005 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 50,009 psi | 78% | 2871 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,482 psi | 67% | 2717 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 45,397 psi | 71% | 2851 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,127 psi | 82% | 2871 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,447 psi | 84% | 2841 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,209 psi | 72% | 2927 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 45,455 psi | 71% | 2854 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 45,455 psi | 71% | 2854 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,641 psi | 67% | 2743 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,629 psi | 72% | 2812 fps | 99.6% |
| Alliant Reloder-16 | 65.7 gr | 80% | 33,040 psi | 52% | 2598 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,115 psi | 58% | 2730 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,875 psi | 70% | 2844 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,730 psi | 70% | 2890 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,253 psi | 43% | 2454 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,911 psi | 55% | 2680 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,402 psi | 52% | 2694 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,545 psi | 78% | 2881 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 42,612 psi | 67% | 2753 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 44,730 psi | 70% | 2890 fps | 95.4% |
| Bofors RP7 | <<locked>> | 82% | 40,422 psi | 63% | 2667 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,374 psi | 84% | 2848 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,692 psi | 81% | 2900 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,120 psi | 68% | 2756 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 40,466 psi | 63% | 2753 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 84% | 43,743 psi | 69% | 2776 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 50,575 psi | 79% | 2881 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,560 psi | 48% | 2497 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,920 psi | 74% | 2861 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 39,668 psi | 62% | 2759 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,818 psi | 42% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,269 psi | 76% | 2828 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,792 psi | 80% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,657 psi | 70% | 2753 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,934 psi | 74% | 2776 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 40,799 psi | 64% | 2700 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,262 psi | 62% | 2644 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 32,155 psi | 50% | 2543 fps | 96% |
| IMR 4895 | <<locked>> | 80% | 46,789 psi | 73% | 2841 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 52,127 psi | 82% | 2871 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,821 psi | 78% | 2844 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,298 psi | 77% | 2795 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,701 psi | 70% | 2753 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,854 psi | 58% | 2595 fps | 96.1% |
| Lovex S070 | <<locked>> | 82% | 37,391 psi | 59% | 2625 fps | 95% |
| Lovex S071 | <<locked>> | 96% | 34,838 psi | 55% | 2608 fps | 95% |
| Norma 201 | <<locked>> | 80% | 48,921 psi | 77% | 2815 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,487 psi | 78% | 2818 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,005 psi | 71% | 2799 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 46,282 psi | 73% | 2851 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 41,234 psi | 65% | 2848 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 33,315 psi | 52% | 2585 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 44,918 psi | 70% | 2815 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 36,970 psi | 58% | 2684 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 51,953 psi | 81% | 2887 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,982 psi | 81% | 2907 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,340 psi | 43% | 1673 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,381 psi | 68% | 2740 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,805 psi | 76% | 2927 fps | 99.8% |
| ReloadSwiss RS 60 | 70.8 gr | 80% | 39,479 psi | 62% | 2792 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,924 psi | 52% | 2602 fps | 95.8% |
| ReloadSwiss RS 70 | 73.6 gr | 82% | 34,766 psi | 54% | 2661 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 52,997 psi | 83% | 2848 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,499 psi | 73% | 2766 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,016 psi | 63% | 2694 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 50,183 psi | 79% | 2887 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 94% | 43,700 psi | 68% | 2825 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 82% | 40,422 psi | 63% | 2667 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,854 psi | 58% | 2595 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,821 psi | 78% | 2844 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,701 psi | 70% | 2753 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,391 psi | 59% | 2625 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,162 psi | 65% | 2749 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,749 psi | 80% | 2867 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,515 psi | 76% | 2841 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,951 psi | 78% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,930 psi | 66% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,522 psi | 60% | 2592 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,279 psi | 68% | 2818 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 49,647 psi | 78% | 2753 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,415 psi | 79% | 2858 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,654 psi | 64% | 2697 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 29,979 psi | 47% | 2539 fps | 98.4% |
| Somchem S385 | <<locked>> | 92% | 41,553 psi | 65% | 2749 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 50,401 psi | 79% | 2740 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,499 psi | 73% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,775 psi | 73% | 2746 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,711 psi | 61% | 2625 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 34,780 psi | 55% | 2589 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 98% | 43,540 psi | 68% | 2776 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 52,388 psi | 82% | 2867 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,165 psi | 71% | 2740 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,229 psi | 54% | 2589 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 29,501 psi | 46% | 2530 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,200 psi | 54% | 2559 fps | 98.6% |
| Winchester 748 | <<locked>> | 80% | 52,634 psi | 82% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 40,466 psi | 63% | 2753 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,340 psi | 43% | 2536 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,225 psi | 76% | 2844 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 47,239 psi | 74% | 2851 fps | 95.8% |
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 107 powders for .340 Weath. Mag. loaded with the .338 | 200gr | NorthFork Bonded Core. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,107 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,107 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 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 200.0 gr projectile in 0.338" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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 60, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .340 Weath. Mag. with the .338 | 200gr | 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.