Load Specifications
Bullet Manufacturer:Nosler
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:1:20.5
Load data in caliber .416 Weath. Mag. with .416 | 400gr | Nosler Partition bullet and 109 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 ReloadSwiss RS 62.
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% | 55,825 psi | 87% | 2464 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,766 psi | 86% | 2503 fps | 99.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,966 psi | 78% | 2533 fps | 99.7% |
| Accurate 4064 | <<locked>> | 86% | 56,043 psi | 88% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,362 psi | 88% | 2625 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,259 psi | 87% | 2543 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,304 psi | 88% | 2549 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,130 psi | 90% | 2667 fps | 99.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 51,242 psi | 80% | 2612 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,450 psi | 90% | 2533 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,390 psi | 87% | 2667 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,058 psi | 89% | 2569 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,261 psi | 90% | 2592 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,942 psi | 89% | 2671 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,592 psi | 86% | 2651 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,202 psi | 88% | 2657 fps | 99.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,748 psi | 78% | 2612 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,021 psi | 74% | 2552 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,046 psi | 64% | 2487 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,316 psi | 84% | 2730 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,114 psi | 86% | 2569 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,788 psi | 72% | 2543 fps | 97.5% |
| Bofors RP3 | <<locked>> | 86% | 54,302 psi | 85% | 2543 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,748 psi | 78% | 2612 fps | 98.4% |
| Bofors RP7 | <<locked>> | 92% | 57,203 psi | 90% | 2579 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,363 psi | 90% | 2569 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,781 psi | 86% | 2559 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,260 psi | 88% | 2644 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 94% | 56,855 psi | 89% | 2612 fps | 99.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 53,795 psi | 84% | 2598 fps | 97% |
| Hodgdon H4895 | <<locked>> | 82% | 55,898 psi | 88% | 2549 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,188 psi | 90% | 2598 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,188 psi | 88% | 2592 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 40,248 psi | 63% | 2510 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 92% | 54,839 psi | 86% | 2664 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 57% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,970 psi | 88% | 2539 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,361 psi | 87% | 2507 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,216 psi | 87% | 2523 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,493 psi | 90% | 2556 fps | 99.8% |
| IMR 4350 | <<locked>> | 94% | 54,360 psi | 85% | 2562 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,492 psi | 87% | 2556 fps | 99.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 2625 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,288 psi | 87% | 2569 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,666 psi | 89% | 2602 fps | 97.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,562 psi | 82% | 2648 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 82% | 57,450 psi | 90% | 2533 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,535 psi | 87% | 2516 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,595 psi | 90% | 2513 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,985 psi | 88% | 2523 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,434 psi | 87% | 2552 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 56,521 psi | 89% | 2592 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,713 psi | 65% | 2405 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 57,450 psi | 90% | 2533 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,766 psi | 86% | 2484 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,507 psi | 89% | 2579 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,984 psi | 86% | 2615 fps | 98.7% |
| Norma MRPᴾ | <<locked>> | 100% | 52,634 psi | 82% | 2687 fps | 99.6% |
| Norma URP | <<locked>> | 94% | 55,042 psi | 86% | 2612 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 57,290 psi | 90% | 2608 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,072 psi | 88% | 2710 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 96% | 57,232 psi | 90% | 2664 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,472 psi | 76% | 2575 fps | 98.6% |
| Ramshot TAC | <<locked>> | 82% | 57,421 psi | 90% | 2569 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,624 psi | 90% | 2582 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,999 psi | 58% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,737 psi | 86% | 2546 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,650 psi | 86% | 2605 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,157 psi | 85% | 2638 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,912 psi | 88% | 2648 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,592 psi | 86% | 2680 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 39,740 psi | 62% | 2503 fps | 97.5% |
| Rottweil R 902 | <<locked>> | 84% | 54,679 psi | 86% | 2490 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,331 psi | 85% | 2536 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,535 psi | 87% | 2592 fps | 98% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,463 psi | 87% | 2644 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 92% | 57,203 psi | 90% | 2579 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,434 psi | 87% | 2552 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,535 psi | 87% | 2516 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,985 psi | 88% | 2523 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,521 psi | 89% | 2592 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,753 psi | 87% | 2595 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,434 psi | 88% | 2556 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,072 psi | 89% | 2566 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,085 psi | 86% | 2421 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,651 psi | 87% | 2428 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,085 psi | 86% | 2510 fps | 99.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,969 psi | 86% | 2641 fps | 99% |
| Somchem S335 | <<locked>> | 82% | 54,679 psi | 86% | 2421 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,101 psi | 88% | 2539 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 57,696 psi | 90% | 2575 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 57,276 psi | 90% | 2589 fps | 97.5% |
| Somchem S365 | <<locked>> | 98% | 57,493 psi | 90% | 2654 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,086 psi | 88% | 2621 fps | 99.5% |
| Unknown powder | <<locked>> | 92% | 55,796 psi | 87% | 2615 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 55,550 psi | 87% | 2405 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,100 psi | 86% | 2451 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,274 psi | 87% | 2467 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,579 psi | 87% | 2510 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,377 psi | 90% | 2602 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,399 psi | 76% | 2500 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 86% | 56,811 psi | 89% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,275 psi | 88% | 2612 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,562 psi | 82% | 2618 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 53,185 psi | 83% | 2680 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,869 psi | 89% | 2575 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,260 psi | 88% | 2644 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,192 psi | 66% | 2605 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,462 psi | 85% | 2595 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% | 49,182 psi | 77% | 2382 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,366 psi | 66% | 2310 fps | 97.3% |
| Accurate 3100 | <<locked>> | 84% | 29,356 psi | 46% | 2146 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 46,615 psi | 73% | 2392 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,186 psi | 55% | 2283 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 80% | 52,040 psi | 82% | 2500 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,309 psi | 69% | 2372 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 39,088 psi | 61% | 2365 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 96% | 44,933 psi | 70% | 2503 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,114 psi | 85% | 2490 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,240 psi | 76% | 2562 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,570 psi | 70% | 2392 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,616 psi | 75% | 2454 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,621 psi | 54% | 2290 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,885 psi | 61% | 2402 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 38,653 psi | 61% | 2359 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 38,464 psi | 60% | 2405 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,295 psi | 40% | 2080 fps | 96.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 30,255 psi | 47% | 2231 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 82% | 28,514 psi | 45% | 2231 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,488 psi | 81% | 2516 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 37,956 psi | 59% | 2392 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 44,628 psi | 70% | 2405 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 38,464 psi | 60% | 2405 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 39,595 psi | 62% | 2293 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,693 psi | 84% | 2523 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,136 psi | 71% | 2415 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 40,219 psi | 63% | 2385 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 37,028 psi | 58% | 2274 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 47,152 psi | 74% | 2493 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 52,620 psi | 82% | 2507 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,184 psi | 50% | 2198 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,311 psi | 73% | 2454 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 37,768 psi | 59% | 2454 fps | 95.6% |
| Hodgdon Superformance | 95.5 gr | 80% | 35,926 psi | 56% | 2333 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 43% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,731 psi | 73% | 2408 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,965 psi | 77% | 2425 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,540 psi | 68% | 2349 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,801 psi | 67% | 2323 fps | 98.1% |
| IMR 4350 | <<locked>> | 80% | 35,302 psi | 55% | 2231 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,017 psi | 64% | 2323 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 30,850 psi | 48% | 2172 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 48,820 psi | 77% | 2477 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 44,425 psi | 70% | 2411 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 94% | 43,018 psi | 67% | 2480 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 54,114 psi | 85% | 2490 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,083 psi | 82% | 2474 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,140 psi | 80% | 2428 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,659 psi | 73% | 2395 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,522 psi | 60% | 2277 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 36,680 psi | 57% | 2260 fps | 96.9% |
| Lovex S071 | <<locked>> | 90% | 30,443 psi | 48% | 2172 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 50,894 psi | 80% | 2448 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,503 psi | 81% | 2444 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,963 psi | 74% | 2441 fps | 100% |
| Norma 204 | <<locked>> | 84% | 39,378 psi | 62% | 2356 fps | 95.5% |
| Norma MRP | <<locked>> | 86% | 33,040 psi | 52% | 2313 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,099 psi | 55% | 2277 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 46,891 psi | 73% | 2464 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 41,930 psi | 66% | 2474 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 34,026 psi | 53% | 2267 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 92% | 36,201 psi | 57% | 2346 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 53,867 psi | 84% | 2523 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,998 psi | 85% | 2533 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,659 psi | 43% | 1398 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,092 psi | 71% | 2398 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,155 psi | 80% | 2559 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,307 psi | 65% | 2448 fps | 100% |
| ReloadSwiss RS 62 | 90.3 gr | 80% | 34,751 psi | 54% | 2300 fps | 98.4% |
| ReloadSwiss RS 70 | 91.8 gr | 80% | 34,040 psi | 53% | 2306 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 34,780 psi | 55% | 2385 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 48,573 psi | 76% | 2405 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,032 psi | 66% | 2356 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 43,236 psi | 68% | 2395 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 88% | 37,565 psi | 59% | 2343 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 39,595 psi | 62% | 2293 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,522 psi | 60% | 2277 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,083 psi | 82% | 2474 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,659 psi | 73% | 2395 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,680 psi | 57% | 2260 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,033 psi | 67% | 2405 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,808 psi | 83% | 2507 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,444 psi | 79% | 2474 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,880 psi | 81% | 2382 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,714 psi | 69% | 2267 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,710 psi | 59% | 2228 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 37,217 psi | 58% | 2339 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 51,547 psi | 81% | 2382 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,373 psi | 82% | 2490 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,511 psi | 67% | 2356 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 47,050 psi | 74% | 2441 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 31,633 psi | 50% | 2241 fps | 99.9% |
| Somchem S385 | <<locked>> | 86% | 35,868 psi | 56% | 2283 fps | 95.7% |
| Unknown powder | <<locked>> | 80% | 37,956 psi | 59% | 2326 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 80% | 52,388 psi | 82% | 2365 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,704 psi | 76% | 2369 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,791 psi | 76% | 2382 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,480 psi | 63% | 2293 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,535 psi | 57% | 2277 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 92% | 37,434 psi | 59% | 2310 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 47,094 psi | 74% | 2382 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,984 psi | 56% | 2280 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 27,543 psi | 43% | 2146 fps | 97% |
| Vihtavuori N560 | <<locked>> | 94% | 43,685 psi | 68% | 2516 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,636 psi | 56% | 2251 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 40,219 psi | 63% | 2385 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 22,292 psi | 35% | 2051 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,493 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 117 powders for .416 Weath. Mag. loaded with the .416 | 400gr | Nosler Partition. Alliant Reloder-26 delivers the highest muzzle velocity at 2,730 fps; across all powders the maximum-charge window runs from 1,532 fps to 2,730 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 400.0 gr projectile in 0.416" calls for a 1:20.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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 70, Hodgdon Superformance, ReloadSwiss RS 62 rank at the top here: for .416 Weath. Mag. with the .416 | 400gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2217, ADI AR 2225 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.