Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:206 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 | 206gr | Peregrine VLR-5 bullet and 104 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% | 54,418 psi | 85% | 2766 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,782 psi | 89% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,013 psi | 86% | 2861 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,825 psi | 87% | 2854 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,976 psi | 69% | 2759 fps | 97.7% |
| Accurate 4064 | <<locked>> | 90% | 56,768 psi | 89% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,653 psi | 90% | 2995 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 57,188 psi | 90% | 2930 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,926 psi | 86% | 2881 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,982 psi | 81% | 2920 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,086 psi | 88% | 2874 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,319 psi | 90% | 2841 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,624 psi | 90% | 3064 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,634 psi | 81% | 2913 fps | 96.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,969 psi | 86% | 2900 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,535 psi | 87% | 2923 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,897 psi | 86% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,260 psi | 88% | 3031 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,879 psi | 80% | 2904 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,829 psi | 66% | 2789 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,782 psi | 58% | 2687 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,297 psi | 74% | 2966 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,305 psi | 90% | 2949 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,680 psi | 87% | 2920 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,608 psi | 87% | 2897 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,653 psi | 90% | 2854 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,753 psi | 87% | 2907 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,434 psi | 88% | 2933 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 56,724 psi | 89% | 2995 fps | 99% |
| Hodgdon H4350 | <<locked>> | 94% | 57,072 psi | 89% | 2956 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 84% | 54,259 psi | 85% | 2887 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,984 psi | 86% | 2920 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,114 psi | 85% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,435 psi | 90% | 3038 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,650 psi | 56% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,593 psi | 87% | 2890 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,578 psi | 86% | 2867 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,259 psi | 85% | 2861 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,653 psi | 90% | 2900 fps | 99% |
| IMR 4350 | <<locked>> | 98% | 56,115 psi | 88% | 2923 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,609 psi | 90% | 2927 fps | 98.9% |
| IMR 4831 | <<locked>> | 98% | 54,172 psi | 85% | 2930 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 56,985 psi | 89% | 2956 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,086 psi | 88% | 2874 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,261 psi | 90% | 2900 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,608 psi | 89% | 2854 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,537 psi | 90% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,913 psi | 89% | 2917 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 54,433 psi | 85% | 2904 fps | 98.8% |
| Norma 201 | <<locked>> | 86% | 55,680 psi | 87% | 2867 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,521 psi | 89% | 2867 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,723 psi | 86% | 2910 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,043 psi | 89% | 2979 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 47,021 psi | 74% | 2920 fps | 97.5% |
| Norma URP | <<locked>> | 98% | 56,391 psi | 88% | 2982 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,622 psi | 87% | 2940 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,216 psi | 87% | 2982 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 56,275 psi | 88% | 2900 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,231 psi | 88% | 2920 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,797 psi | 89% | 2877 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,114 psi | 57% | 1814 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,855 psi | 89% | 2920 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,188 psi | 88% | 2995 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,101 psi | 88% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,450 psi | 90% | 3022 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,608 psi | 89% | 3051 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 56,521 psi | 89% | 2844 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,318 psi | 88% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,550 psi | 87% | 2910 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,766 psi | 84% | 2890 fps | 95.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,617 psi | 78% | 2887 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 94% | 55,608 psi | 87% | 2897 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,913 psi | 89% | 2917 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,261 psi | 90% | 2900 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,537 psi | 90% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,433 psi | 85% | 2904 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,667 psi | 90% | 2976 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,897 psi | 86% | 2881 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,622 psi | 87% | 2900 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,261 psi | 90% | 2802 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,740 psi | 90% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,203 psi | 90% | 2871 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,153 psi | 77% | 2881 fps | 96.5% |
| Somchem S321 | <<locked>> | 82% | 57,450 psi | 90% | 2907 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,536 psi | 89% | 2799 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,563 psi | 86% | 2867 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,782 psi | 87% | 2907 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,665 psi | 86% | 2979 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,401 psi | 79% | 2867 fps | 97.6% |
| Vihtavuori N130 | <<locked>> | 82% | 56,840 psi | 89% | 2759 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,609 psi | 90% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,391 psi | 88% | 2828 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,029 psi | 89% | 2844 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,464 psi | 90% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,361 psi | 87% | 2923 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,536 psi | 89% | 2874 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,158 psi | 86% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,201 psi | 85% | 2930 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,412 psi | 73% | 2867 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,448 psi | 87% | 2897 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,855 psi | 89% | 2923 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,724 psi | 89% | 2995 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,376 psi | 59% | 2812 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,637 psi | 87% | 2910 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% | 51,140 psi | 80% | 2720 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,540 psi | 68% | 2648 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,271 psi | 80% | 2808 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,830 psi | 67% | 2631 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 35,665 psi | 56% | 2589 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 41,249 psi | 65% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,342 psi | 48% | 2474 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 47,181 psi | 74% | 2769 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,205 psi | 63% | 2621 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 45,716 psi | 72% | 2805 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,327 psi | 77% | 2772 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,372 psi | 79% | 2749 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,381 psi | 68% | 2818 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 45,484 psi | 71% | 2802 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,914 psi | 63% | 2644 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,772 psi | 67% | 2710 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,937 psi | 48% | 2497 fps | 95.4% |
| Alliant Reloder-17 | 66.8 gr | 80% | 34,621 psi | 54% | 2625 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,846 psi | 70% | 2795 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,745 psi | 42% | 2398 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,476 psi | 54% | 2625 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,953 psi | 52% | 2638 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,789 psi | 73% | 2782 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 39,566 psi | 62% | 2648 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 40,480 psi | 63% | 2621 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,039 psi | 80% | 2759 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,559 psi | 76% | 2799 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,379 psi | 63% | 2654 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 40,393 psi | 63% | 2707 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 44,092 psi | 69% | 2733 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 47,630 psi | 75% | 2779 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,326 psi | 44% | 2395 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,019 psi | 69% | 2759 fps | 99.9% |
| Hodgdon Superformance | 77.6 gr | 88% | 42,772 psi | 67% | 2782 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 41% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,759 psi | 72% | 2733 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,805 psi | 75% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,221 psi | 66% | 2657 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,686 psi | 70% | 2680 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 40,843 psi | 64% | 2654 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,508 psi | 62% | 2602 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 31,749 psi | 50% | 2493 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 43,874 psi | 69% | 2740 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 49,327 psi | 77% | 2772 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,688 psi | 73% | 2746 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,978 psi | 74% | 2703 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,032 psi | 66% | 2654 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,519 psi | 54% | 2497 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 39,682 psi | 62% | 2635 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 46,180 psi | 72% | 2720 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,659 psi | 73% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,134 psi | 66% | 2697 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 46,456 psi | 73% | 2802 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 40,973 psi | 64% | 2795 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 30,835 psi | 48% | 2480 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 42,105 psi | 66% | 2713 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 36,825 psi | 58% | 2635 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 49,313 psi | 77% | 2789 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,095 psi | 77% | 2808 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,200 psi | 83% | 2825 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,934 psi | 42% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,785 psi | 64% | 2638 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,629 psi | 72% | 2818 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,883 psi | 58% | 2690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,445 psi | 51% | 2549 fps | 95.7% |
| ReloadSwiss RS 70 | 71.2 gr | 84% | 34,809 psi | 55% | 2618 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 50,082 psi | 78% | 2753 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,932 psi | 69% | 2671 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,173 psi | 58% | 2592 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 98% | 50,531 psi | 79% | 2838 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 43,468 psi | 68% | 2772 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 40,480 psi | 63% | 2621 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,519 psi | 54% | 2497 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,688 psi | 73% | 2746 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,032 psi | 66% | 2654 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,682 psi | 62% | 2635 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,392 psi | 60% | 2644 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,790 psi | 75% | 2766 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,759 psi | 72% | 2743 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,471 psi | 74% | 2664 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,639 psi | 62% | 2530 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,551 psi | 60% | 2546 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,093 psi | 72% | 2825 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 53,708 psi | 84% | 2854 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,108 psi | 74% | 2664 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,616 psi | 75% | 2759 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,058 psi | 60% | 2598 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 27,601 psi | 43% | 2434 fps | 97.5% |
| Somchem S385 | <<locked>> | 94% | 41,263 psi | 65% | 2700 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 53,490 psi | 84% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,950 psi | 75% | 2651 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,700 psi | 68% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,121 psi | 69% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,114 psi | 57% | 2530 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,213 psi | 50% | 2484 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 49,530 psi | 78% | 2769 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,525 psi | 67% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,705 psi | 50% | 2484 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 28,848 psi | 45% | 2477 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,010 psi | 50% | 2464 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 49,647 psi | 78% | 2818 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,567 psi | 64% | 2710 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,774 psi | 42% | 2477 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,411 psi | 71% | 2746 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 104 powders for .340 Weath. Mag. loaded with the .338 | 206gr | Peregrine VLR-5. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,064 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,064 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 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 206.0 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 Power Pro Varmint 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 | 206gr | Peregrine VLR-5 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.