Load Specifications
Bullet Manufacturer:Hornady
Bullet Weight:400 gr
Bullet Diameter:0.416"
Bullet Length:<<locked>>
Caliber:.416 Weath. Mag. load data
Case Length (l3):2.913"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:140 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:21.5
Load data in caliber .416 Weath. Mag. with .416 | 400gr | Hornady FMJ RN 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 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.
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% | 56,565 psi | 89% | 2477 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,317 psi | 85% | 2510 fps | 99.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,850 psi | 80% | 2552 fps | 99.8% |
| Accurate 4064 | <<locked>> | 86% | 56,898 psi | 89% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,276 psi | 90% | 2641 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 52,576 psi | 82% | 2684 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 82% | 56,086 psi | 88% | 2559 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,043 psi | 89% | 2566 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,520 psi | 85% | 2638 fps | 98.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2631 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,188 psi | 88% | 2684 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,682 psi | 90% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,563 psi | 86% | 2559 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,375 psi | 85% | 2641 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,492 psi | 87% | 2667 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,072 psi | 89% | 2677 fps | 99.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,560 psi | 79% | 2631 fps | 98.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,921 psi | 75% | 2569 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,727 psi | 65% | 2507 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 54,404 psi | 85% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,825 psi | 87% | 2582 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,601 psi | 73% | 2562 fps | 97.7% |
| Bofors RP3 | <<locked>> | 86% | 55,085 psi | 86% | 2559 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,560 psi | 79% | 2631 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 54,549 psi | 85% | 2549 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 86% | 55,521 psi | 87% | 2575 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 55,796 psi | 87% | 2644 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 90% | 55,912 psi | 88% | 2605 fps | 99.2% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,738 psi | 87% | 2635 fps | 97.5% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 54,607 psi | 86% | 2618 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 82% | 56,724 psi | 89% | 2566 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,505 psi | 85% | 2569 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,652 psi | 89% | 2605 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 40,915 psi | 64% | 2533 fps | 97% |
| Hodgdon Superformance | <<locked>> | 92% | 55,666 psi | 87% | 2684 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 57% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,551 psi | 90% | 2566 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,348 psi | 90% | 2536 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,681 psi | 89% | 2549 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,811 psi | 87% | 2539 fps | 99.7% |
| IMR 4350 | <<locked>> | 94% | 55,100 psi | 86% | 2582 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,115 psi | 88% | 2572 fps | 99.7% |
| IMR 4831 | <<locked>> | 96% | 57,551 psi | 90% | 2631 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,941 psi | 88% | 2585 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 57,464 psi | 90% | 2621 fps | 97.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 49,545 psi | 78% | 2608 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 82% | 56,405 psi | 88% | 2533 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,926 psi | 86% | 2487 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,768 psi | 89% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,057 psi | 88% | 2569 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 57,319 psi | 90% | 2608 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,438 psi | 67% | 2421 fps | 98.9% |
| Norma 201 | <<locked>> | 82% | 54,781 psi | 86% | 2503 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,448 psi | 87% | 2500 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,290 psi | 90% | 2595 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,724 psi | 87% | 2631 fps | 98.9% |
| Norma MRPᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2707 fps | 99.7% |
| Norma URP | <<locked>> | 94% | 55,912 psi | 88% | 2628 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,317 psi | 85% | 2575 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 49,516 psi | 78% | 2618 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 94% | 54,491 psi | 85% | 2635 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 43,990 psi | 69% | 2507 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,130 psi | 58% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,405 psi | 87% | 2562 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,564 psi | 87% | 2625 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,071 psi | 86% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,884 psi | 89% | 2667 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,463 psi | 87% | 2697 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,509 psi | 63% | 2526 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 55,535 psi | 87% | 2507 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,114 psi | 86% | 2552 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,260 psi | 88% | 2608 fps | 98.2% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,405 psi | 88% | 2664 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 90% | 54,549 psi | 85% | 2549 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,057 psi | 88% | 2569 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,405 psi | 88% | 2533 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,768 psi | 89% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,319 psi | 90% | 2608 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,608 psi | 89% | 2612 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,145 psi | 90% | 2569 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,404 psi | 85% | 2536 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,767 psi | 87% | 2434 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,405 psi | 88% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,840 psi | 88% | 2526 fps | 99.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 2657 fps | 99.2% |
| Somchem S335 | <<locked>> | 82% | 55,332 psi | 87% | 2438 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,826 psi | 89% | 2556 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,100 psi | 86% | 2546 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 54,360 psi | 85% | 2556 fps | 97.1% |
| Somchem S365 | <<locked>> | 96% | 54,824 psi | 86% | 2628 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2641 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 82% | 56,260 psi | 88% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,811 psi | 87% | 2464 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,883 psi | 88% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,289 psi | 88% | 2523 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,563 psi | 86% | 2575 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,197 psi | 77% | 2520 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 86% | 57,508 psi | 90% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,029 psi | 89% | 2628 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,592 psi | 84% | 2635 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 54,114 psi | 85% | 2700 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 57,682 psi | 90% | 2592 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,927 psi | 88% | 2648 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,989 psi | 67% | 2625 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,360 psi | 85% | 2543 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,461 psi | 84% | 2585 fps | 98.7% |
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% | 2395 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,834 psi | 75% | 2411 fps | 98.4% |
| Accurate 3100 | <<locked>> | 84% | 29,849 psi | 47% | 2162 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 47,326 psi | 74% | 2405 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,781 psi | 56% | 2300 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 96% | 45,876 psi | 72% | 2572 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 52,707 psi | 83% | 2513 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,802 psi | 70% | 2385 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 39,639 psi | 62% | 2382 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 42,844 psi | 67% | 2470 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,008 psi | 77% | 2582 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,107 psi | 71% | 2405 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,283 psi | 76% | 2470 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,172 psi | 55% | 2310 fps | 99% |
| Alliant Reloder-17 | 91.8 gr | 80% | 39,537 psi | 62% | 2418 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 36,869 psi | 58% | 2326 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 90% | 36,709 psi | 58% | 2372 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,715 psi | 40% | 2096 fps | 97.2% |
| Alliant Reloder-25 | <<locked>> | 88% | 28,950 psi | 45% | 2201 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 27,064 psi | 42% | 2192 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,214 psi | 82% | 2533 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 38,595 psi | 60% | 2411 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 45,281 psi | 71% | 2418 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 36,709 psi | 58% | 2372 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 40,161 psi | 63% | 2310 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 80% | 45,730 psi | 72% | 2431 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 37,782 psi | 59% | 2343 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 40,741 psi | 64% | 2356 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 94% | 45,861 psi | 72% | 2480 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 44,889 psi | 70% | 2461 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 53,301 psi | 84% | 2520 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,663 psi | 51% | 2211 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,777 psi | 78% | 2510 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 36,100 psi | 57% | 2421 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 36,579 psi | 57% | 2352 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 43% | 1371 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,908 psi | 80% | 2477 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,867 psi | 84% | 2493 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,137 psi | 74% | 2411 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,298 psi | 77% | 2441 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 35,810 psi | 56% | 2247 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,452 psi | 65% | 2336 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 34,490 psi | 54% | 2257 fps | 98.7% |
| IMR 4895 | <<locked>> | 80% | 49,472 psi | 78% | 2493 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 44,933 psi | 70% | 2425 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 96% | 43,511 psi | 68% | 2500 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 80% | 52,750 psi | 83% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,779 psi | 81% | 2444 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,355 psi | 74% | 2411 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,073 psi | 61% | 2293 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 37,231 psi | 58% | 2277 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 29,124 psi | 46% | 2146 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 51,605 psi | 81% | 2461 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,083 psi | 82% | 2454 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,616 psi | 75% | 2457 fps | 100% |
| Norma 204 | <<locked>> | 84% | 39,972 psi | 63% | 2372 fps | 95.8% |
| Norma MRP | <<locked>> | 86% | 33,518 psi | 53% | 2329 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 35,679 psi | 56% | 2293 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 47,645 psi | 75% | 2480 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 43,163 psi | 68% | 2503 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 34,519 psi | 54% | 2283 fps | 97% |
| Ramshot Magnum | <<locked>> | 94% | 35,723 psi | 56% | 2343 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,659 psi | 43% | 1404 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,774 psi | 72% | 2418 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,880 psi | 81% | 2572 fps | 100% |
| ReloadSwiss RS 60 | 91.8 gr | 80% | 42,032 psi | 66% | 2464 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,433 psi | 56% | 2316 fps | 98.6% |
| ReloadSwiss RS 70 | 93.2 gr | 80% | 34,548 psi | 54% | 2323 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 35,418 psi | 56% | 2408 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 49,095 psi | 77% | 2418 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,656 psi | 67% | 2372 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 41,220 psi | 65% | 2365 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 38,174 psi | 60% | 2362 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 40,161 psi | 63% | 2310 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,073 psi | 61% | 2293 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,750 psi | 83% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,355 psi | 74% | 2411 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,231 psi | 58% | 2277 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,613 psi | 68% | 2421 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,345 psi | 84% | 2520 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,024 psi | 80% | 2490 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,417 psi | 82% | 2395 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,251 psi | 69% | 2280 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,203 psi | 60% | 2244 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 37,811 psi | 59% | 2356 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 52,170 psi | 82% | 2395 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,098 psi | 83% | 2507 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,149 psi | 68% | 2372 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 44,686 psi | 70% | 2405 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 32,184 psi | 50% | 2257 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 34,084 psi | 53% | 2251 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 52,953 psi | 83% | 2375 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,313 psi | 77% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,414 psi | 77% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,089 psi | 64% | 2306 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,115 psi | 58% | 2290 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 35,708 psi | 56% | 2280 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 47,674 psi | 75% | 2398 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,564 psi | 57% | 2297 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 28,094 psi | 44% | 2165 fps | 97.3% |
| Vihtavuori N560 | <<locked>> | 94% | 44,309 psi | 69% | 2533 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,114 psi | 57% | 2267 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 37,782 psi | 59% | 2343 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 22,611 psi | 35% | 2070 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,937 psi | 80% | 2497 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 38,189 psi | 60% | 2333 fps | 95.3% |
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 .416 Weath. Mag. loaded with the .416 | 400gr | Hornady FMJ RN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,749 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,749 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 400.0 gr projectile in 0.416" calls for a 1:21.5 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .416 Weath. Mag. with the .416 | 400gr | Hornady FMJ RN 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.