Load Specifications
Bullet Manufacturer:Alaska Bullet Works
Bullet Weight:225 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:1:15.5
Load data in caliber .340 Weath. Mag. with .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC bullet and 106 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-26.
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 2495 | <<locked>> | 84% | 56,797 psi | 89% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,607 psi | 86% | 2736 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,445 psi | 81% | 2772 fps | 99.6% |
| Accurate 4064 | <<locked>> | 86% | 57,072 psi | 89% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,653 psi | 90% | 2877 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 53,432 psi | 84% | 2910 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 82% | 56,028 psi | 88% | 2795 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,159 psi | 90% | 2799 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,027 psi | 86% | 2867 fps | 98.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,576 psi | 82% | 2858 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,608 psi | 89% | 2927 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,549 psi | 85% | 2776 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,795 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,621 psi | 86% | 2877 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 56,072 psi | 88% | 2904 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,711 psi | 90% | 2907 fps | 98.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,227 psi | 80% | 2858 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,457 psi | 76% | 2795 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,279 psi | 66% | 2720 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,550 psi | 87% | 2986 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,927 psi | 88% | 2815 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,137 psi | 74% | 2782 fps | 97.2% |
| Bofors RP3 | <<locked>> | 86% | 55,303 psi | 87% | 2792 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,227 psi | 80% | 2858 fps | 98.1% |
| Bofors RP7 | <<locked>> | 90% | 54,694 psi | 86% | 2776 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 86% | 55,651 psi | 87% | 2808 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 56,275 psi | 88% | 2877 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 90% | 56,202 psi | 88% | 2838 fps | 98.8% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 56,565 psi | 89% | 2864 fps | 97% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,187 psi | 86% | 2841 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 82% | 56,637 psi | 89% | 2802 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,926 psi | 86% | 2802 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,884 psi | 89% | 2841 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 41,408 psi | 65% | 2743 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 92% | 56,536 psi | 89% | 2920 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,289 psi | 57% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,201 psi | 85% | 2753 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,464 psi | 90% | 2776 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,826 psi | 89% | 2782 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,086 psi | 88% | 2772 fps | 99.5% |
| IMR 4350 | <<locked>> | 94% | 55,434 psi | 87% | 2808 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,420 psi | 88% | 2805 fps | 99.5% |
| IMR 4831 | <<locked>> | 94% | 54,288 psi | 85% | 2815 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,217 psi | 88% | 2822 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,607 psi | 86% | 2795 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,111 psi | 79% | 2828 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 82% | 56,536 psi | 89% | 2769 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,955 psi | 86% | 2720 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,898 psi | 89% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,420 psi | 88% | 2799 fps | 99.9% |
| Lovex S070 | <<locked>> | 94% | 57,580 psi | 90% | 2838 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,815 psi | 67% | 2631 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 54,882 psi | 86% | 2740 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,622 psi | 87% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,522 psi | 90% | 2831 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,144 psi | 88% | 2861 fps | 98.5% |
| Norma MRPᴾ | <<locked>> | 100% | 54,389 psi | 85% | 2940 fps | 99.5% |
| Norma URP | <<locked>> | 94% | 56,260 psi | 88% | 2861 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,781 psi | 86% | 2808 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 50,241 psi | 79% | 2841 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 54,926 psi | 86% | 2864 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,744 psi | 70% | 2720 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 58% | 1755 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,579 psi | 87% | 2792 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,622 psi | 87% | 2861 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,637 psi | 87% | 2897 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,464 psi | 90% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,941 psi | 88% | 2930 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,176 psi | 65% | 2736 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 84% | 55,463 psi | 87% | 2740 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,405 psi | 87% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,840 psi | 89% | 2838 fps | 97.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,942 psi | 89% | 2894 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 90% | 54,694 psi | 86% | 2776 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,420 psi | 88% | 2799 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,536 psi | 89% | 2769 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,898 psi | 89% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,580 psi | 90% | 2838 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,913 psi | 89% | 2844 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,348 psi | 90% | 2802 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,462 psi | 85% | 2766 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,709 psi | 87% | 2667 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,449 psi | 88% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,260 psi | 88% | 2756 fps | 99.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,449 psi | 88% | 2890 fps | 98.8% |
| Somchem S335 | <<locked>> | 82% | 55,405 psi | 87% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,956 psi | 89% | 2785 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,347 psi | 87% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 54,984 psi | 86% | 2779 fps | 96.6% |
| Somchem S365 | <<locked>> | 96% | 55,477 psi | 87% | 2861 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,624 psi | 90% | 2867 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 82% | 56,231 psi | 88% | 2648 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,898 psi | 88% | 2697 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,014 psi | 88% | 2713 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,695 psi | 89% | 2756 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,926 psi | 86% | 2805 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,748 psi | 78% | 2736 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 86% | 57,667 psi | 90% | 2756 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,595 psi | 90% | 2861 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,114 psi | 85% | 2867 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2930 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,433 psi | 85% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,492 psi | 89% | 2881 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,584 psi | 68% | 2848 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,650 psi | 86% | 2776 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,143 psi | 85% | 2812 fps | 98.3% |
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 2495 | <<locked>> | 80% | 49,966 psi | 78% | 2621 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,950 psi | 75% | 2628 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 32,082 psi | 50% | 2402 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 47,340 psi | 74% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,795 psi | 56% | 2500 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 98% | 49,879 psi | 78% | 2851 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 52,678 psi | 83% | 2746 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,817 psi | 70% | 2605 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 42,467 psi | 67% | 2644 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 46,035 psi | 72% | 2740 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,182 psi | 77% | 2815 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,063 psi | 71% | 2628 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,211 psi | 76% | 2694 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,128 psi | 55% | 2510 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,581 psi | 62% | 2631 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,047 psi | 66% | 2638 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 39,363 psi | 62% | 2628 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,715 psi | 40% | 2277 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 90% | 30,951 psi | 49% | 2441 fps | 95.1% |
| Alliant Reloder-26 | 72 gr | 82% | 29,167 psi | 46% | 2434 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,446 psi | 82% | 2762 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 41,336 psi | 65% | 2671 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 45,324 psi | 71% | 2641 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 39,363 psi | 62% | 2628 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 40,089 psi | 63% | 2516 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 45,716 psi | 72% | 2648 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 37,782 psi | 59% | 2546 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 40,770 psi | 64% | 2562 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 96% | 49,284 psi | 77% | 2746 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 48,312 psi | 76% | 2730 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 53,243 psi | 83% | 2753 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,648 psi | 51% | 2408 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,821 psi | 78% | 2740 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 38,754 psi | 61% | 2680 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 36,709 psi | 58% | 2552 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,108 psi | 42% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,923 psi | 80% | 2707 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,853 psi | 84% | 2730 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,123 psi | 74% | 2638 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,458 psi | 78% | 2667 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 38,174 psi | 60% | 2497 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,452 psi | 65% | 2546 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 34,534 psi | 54% | 2457 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 49,443 psi | 77% | 2723 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 48,109 psi | 75% | 2690 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 98% | 46,920 psi | 74% | 2772 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 80% | 52,924 psi | 83% | 2720 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,677 psi | 81% | 2671 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,253 psi | 74% | 2635 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,059 psi | 61% | 2500 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 37,260 psi | 58% | 2477 fps | 96.3% |
| Lovex S071 | <<locked>> | 92% | 33,127 psi | 52% | 2428 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 51,576 psi | 81% | 2690 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,069 psi | 82% | 2687 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,587 psi | 75% | 2680 fps | 100% |
| Norma 204 | <<locked>> | 86% | 42,975 psi | 67% | 2635 fps | 95.8% |
| Norma MRP | <<locked>> | 88% | 36,114 psi | 57% | 2585 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 35,723 psi | 56% | 2497 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,819 psi | 75% | 2703 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 46,760 psi | 73% | 2779 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 34,577 psi | 54% | 2480 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 38,682 psi | 61% | 2598 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,557 psi | 43% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,774 psi | 72% | 2631 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,880 psi | 81% | 2805 fps | 100% |
| ReloadSwiss RS 60 | 68.5 gr | 80% | 42,061 psi | 66% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,418 psi | 56% | 2516 fps | 97.9% |
| ReloadSwiss RS 70 | 69.6 gr | 80% | 34,679 psi | 54% | 2523 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,348 psi | 60% | 2667 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 49,226 psi | 77% | 2648 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,714 psi | 67% | 2589 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 47,036 psi | 74% | 2680 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 90% | 40,930 psi | 64% | 2618 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 40,089 psi | 63% | 2516 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,059 psi | 61% | 2500 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,924 psi | 83% | 2720 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,253 psi | 74% | 2635 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,260 psi | 58% | 2477 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,685 psi | 68% | 2638 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,679 psi | 84% | 2749 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,082 psi | 80% | 2717 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,489 psi | 82% | 2625 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,295 psi | 69% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,261 psi | 60% | 2444 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,538 psi | 64% | 2615 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 52,199 psi | 82% | 2621 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,345 psi | 84% | 2736 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,134 psi | 68% | 2589 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 48,138 psi | 75% | 2667 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 32,242 psi | 51% | 2457 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 36,593 psi | 57% | 2497 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 53,011 psi | 83% | 2608 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,371 psi | 77% | 2612 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,472 psi | 78% | 2621 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,133 psi | 64% | 2520 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,101 psi | 58% | 2497 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 38,290 psi | 60% | 2526 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 47,718 psi | 75% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,521 psi | 57% | 2497 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 27,992 psi | 44% | 2346 fps | 96.2% |
| Vihtavuori N560 | <<locked>> | 96% | 47,950 psi | 75% | 2808 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,318 psi | 57% | 2467 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 37,898 psi | 59% | 2546 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,149 psi | 38% | 2297 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,169 psi | 80% | 2726 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,060 psi | 64% | 2585 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 106 powders for .340 Weath. Mag. loaded with the .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC. Alliant Reloder-26 delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,713 fps to 2,986 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 225.0 gr projectile in 0.338" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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 60, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .340 Weath. Mag. with the .338 | 225gr | Alaska Bullet Works Kodiak PP SPBC 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.