Load Specifications
Bullet Manufacturer:North Fork
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 | North Fork Semi Spitz bullet and 110 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% | 56,014 psi | 88% | 2467 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,450 psi | 90% | 2546 fps | 99.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,096 psi | 79% | 2536 fps | 99.7% |
| Accurate 4064 | <<locked>> | 86% | 56,260 psi | 88% | 2520 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,550 psi | 89% | 2628 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 51,880 psi | 81% | 2667 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 82% | 55,477 psi | 87% | 2546 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,507 psi | 89% | 2552 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2674 fps | 99.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 51,416 psi | 81% | 2615 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,682 psi | 90% | 2539 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,608 psi | 87% | 2671 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,116 psi | 90% | 2572 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,450 psi | 90% | 2595 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 57,130 psi | 90% | 2674 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,766 psi | 86% | 2654 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,347 psi | 88% | 2661 fps | 99.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,879 psi | 78% | 2615 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,195 psi | 74% | 2556 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,307 psi | 65% | 2493 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,505 psi | 84% | 2730 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,129 psi | 86% | 2569 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,919 psi | 72% | 2546 fps | 97.5% |
| Bofors RP3 | <<locked>> | 86% | 54,331 psi | 85% | 2546 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,879 psi | 78% | 2615 fps | 98.4% |
| Bofors RP7 | <<locked>> | 92% | 57,392 psi | 90% | 2582 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,566 psi | 90% | 2572 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,795 psi | 86% | 2562 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 55,158 psi | 86% | 2631 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 90% | 55,245 psi | 87% | 2592 fps | 99.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,085 psi | 86% | 2618 fps | 97.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 53,925 psi | 85% | 2602 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 56,072 psi | 88% | 2552 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,377 psi | 90% | 2602 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,086 psi | 88% | 2592 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 40,379 psi | 63% | 2516 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 92% | 54,969 psi | 86% | 2671 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 57% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,116 psi | 90% | 2556 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,797 psi | 89% | 2523 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,072 psi | 88% | 2536 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,288 psi | 87% | 2526 fps | 99.7% |
| IMR 4350 | <<locked>> | 94% | 54,520 psi | 85% | 2566 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,666 psi | 87% | 2559 fps | 99.7% |
| IMR 4831 | <<locked>> | 96% | 56,710 psi | 89% | 2618 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,521 psi | 87% | 2575 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,956 psi | 89% | 2608 fps | 97.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 48,907 psi | 77% | 2592 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 82% | 57,682 psi | 90% | 2539 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,767 psi | 87% | 2523 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,505 psi | 85% | 2477 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,217 psi | 88% | 2530 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,419 psi | 87% | 2552 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 56,666 psi | 89% | 2595 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,872 psi | 66% | 2408 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 57,696 psi | 90% | 2536 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,969 psi | 86% | 2490 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,724 psi | 89% | 2582 fps | 100% |
| Norma 204 | <<locked>> | 94% | 55,143 psi | 86% | 2618 fps | 98.8% |
| Norma MRPᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2690 fps | 99.6% |
| Norma URP | <<locked>> | 94% | 55,230 psi | 87% | 2615 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 57,479 psi | 90% | 2612 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 48,892 psi | 77% | 2602 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 96% | 57,421 psi | 90% | 2667 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 43,352 psi | 68% | 2490 fps | 97.6% |
| Ramshot TAC | <<locked>> | 82% | 57,595 psi | 90% | 2575 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,999 psi | 58% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,926 psi | 86% | 2552 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,882 psi | 86% | 2612 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 54,346 psi | 85% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 56,072 psi | 88% | 2651 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,723 psi | 86% | 2680 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 39,929 psi | 63% | 2510 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 84% | 54,911 psi | 86% | 2493 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,389 psi | 85% | 2539 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,695 psi | 87% | 2595 fps | 98.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,608 psi | 87% | 2648 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 92% | 57,392 psi | 90% | 2582 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,419 psi | 87% | 2552 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,767 psi | 87% | 2523 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,217 psi | 88% | 2530 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,666 psi | 89% | 2595 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,941 psi | 88% | 2598 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,463 psi | 88% | 2556 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,276 psi | 90% | 2569 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,274 psi | 87% | 2425 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,811 psi | 87% | 2428 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,274 psi | 87% | 2513 fps | 99.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,114 psi | 86% | 2644 fps | 99% |
| Somchem S335 | <<locked>> | 82% | 54,882 psi | 86% | 2425 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,101 psi | 88% | 2539 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,476 psi | 85% | 2536 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 57,363 psi | 90% | 2592 fps | 97.5% |
| Somchem S365 | <<locked>> | 98% | 57,682 psi | 90% | 2657 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,289 psi | 88% | 2625 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 55,767 psi | 87% | 2408 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,129 psi | 86% | 2451 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,434 psi | 87% | 2470 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,767 psi | 87% | 2513 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,551 psi | 90% | 2608 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,559 psi | 76% | 2503 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 86% | 56,840 psi | 89% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,434 psi | 88% | 2615 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,736 psi | 83% | 2621 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 53,301 psi | 84% | 2680 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 57,000 psi | 89% | 2579 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,288 psi | 87% | 2631 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,438 psi | 67% | 2608 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 57,450 psi | 90% | 2579 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,721 psi | 83% | 2572 fps | 98.5% |
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% | 49,429 psi | 77% | 2385 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,311 psi | 74% | 2398 fps | 98.3% |
| Accurate 3100 | <<locked>> | 84% | 29,501 psi | 46% | 2149 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 46,818 psi | 73% | 2395 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,244 psi | 55% | 2283 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 98% | 48,414 psi | 76% | 2612 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 52,083 psi | 82% | 2500 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,382 psi | 70% | 2375 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 39,247 psi | 62% | 2369 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 45,063 psi | 71% | 2507 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,157 psi | 85% | 2493 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,428 psi | 76% | 2569 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,643 psi | 70% | 2395 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,659 psi | 75% | 2457 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,780 psi | 55% | 2293 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,015 psi | 61% | 2405 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 38,798 psi | 61% | 2365 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 38,595 psi | 60% | 2408 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,411 psi | 40% | 2083 fps | 97% |
| Alliant Reloder-25 | <<locked>> | 90% | 30,371 psi | 48% | 2238 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 26,701 psi | 42% | 2175 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,634 psi | 81% | 2520 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 38,087 psi | 60% | 2398 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 44,802 psi | 70% | 2408 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 38,595 psi | 60% | 2408 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 39,653 psi | 62% | 2297 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,911 psi | 84% | 2526 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,194 psi | 71% | 2418 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 37,260 psi | 58% | 2326 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 80% | 40,379 psi | 63% | 2343 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 94% | 45,208 psi | 71% | 2464 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 47,282 psi | 74% | 2497 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 52,692 psi | 83% | 2507 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,256 psi | 51% | 2198 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,168 psi | 77% | 2497 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 38,014 psi | 60% | 2461 fps | 95.7% |
| Hodgdon Superformance | 95.8 gr | 80% | 36,071 psi | 57% | 2336 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 43% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,488 psi | 79% | 2464 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,272 psi | 83% | 2484 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,688 psi | 73% | 2402 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,921 psi | 77% | 2431 fps | 99.1% |
| IMR 4350 | <<locked>> | 80% | 35,462 psi | 56% | 2234 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,075 psi | 64% | 2323 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 34,098 psi | 53% | 2247 fps | 98.5% |
| IMR 4895 | <<locked>> | 80% | 48,892 psi | 77% | 2480 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 44,570 psi | 70% | 2415 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 96% | 43,033 psi | 67% | 2484 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 54,157 psi | 85% | 2493 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,257 psi | 82% | 2477 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,329 psi | 80% | 2431 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,833 psi | 73% | 2398 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,682 psi | 61% | 2280 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 36,840 psi | 58% | 2264 fps | 96.9% |
| Lovex S071 | <<locked>> | 90% | 30,589 psi | 48% | 2178 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 51,111 psi | 80% | 2451 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,576 psi | 81% | 2444 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,021 psi | 74% | 2444 fps | 100% |
| Norma 204 | <<locked>> | 84% | 39,523 psi | 62% | 2359 fps | 95.5% |
| Norma MRP | <<locked>> | 86% | 33,127 psi | 52% | 2316 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 35,273 psi | 55% | 2280 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 47,094 psi | 74% | 2467 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 42,554 psi | 67% | 2487 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 34,185 psi | 54% | 2270 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 96% | 37,768 psi | 59% | 2382 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 54,056 psi | 85% | 2526 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,673 psi | 43% | 1401 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,252 psi | 71% | 2405 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,401 psi | 81% | 2562 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,481 psi | 65% | 2451 fps | 100% |
| ReloadSwiss RS 62 | 90.6 gr | 80% | 34,911 psi | 55% | 2303 fps | 98.4% |
| ReloadSwiss RS 70 | 92.1 gr | 80% | 34,142 psi | 54% | 2310 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 34,853 psi | 55% | 2388 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 48,617 psi | 76% | 2405 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,206 psi | 66% | 2359 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 43,366 psi | 68% | 2398 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 88% | 37,739 psi | 59% | 2349 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 39,653 psi | 62% | 2297 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,682 psi | 61% | 2280 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,257 psi | 82% | 2477 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,833 psi | 73% | 2398 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,840 psi | 58% | 2264 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,207 psi | 68% | 2411 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,808 psi | 83% | 2507 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,589 psi | 79% | 2477 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,938 psi | 81% | 2382 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,787 psi | 69% | 2270 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,724 psi | 59% | 2231 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 37,376 psi | 59% | 2343 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 51,721 psi | 81% | 2385 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,562 psi | 82% | 2493 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,699 psi | 67% | 2359 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 47,166 psi | 74% | 2441 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 31,807 psi | 50% | 2244 fps | 99.9% |
| Somchem S385 | <<locked>> | 86% | 35,926 psi | 56% | 2283 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 52,475 psi | 82% | 2365 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,747 psi | 76% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,965 psi | 77% | 2388 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,640 psi | 64% | 2297 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,593 psi | 57% | 2277 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 35,244 psi | 55% | 2264 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 47,152 psi | 74% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,042 psi | 56% | 2280 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 27,601 psi | 43% | 2149 fps | 97% |
| Vihtavuori N560 | <<locked>> | 94% | 43,816 psi | 69% | 2520 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,737 psi | 56% | 2254 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 37,376 psi | 59% | 2329 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 22,379 psi | 35% | 2057 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,372 psi | 79% | 2484 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 37,695 psi | 59% | 2320 fps | 95.1% |
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 | North Fork Semi Spitz. 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 45–90 %, 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 | North Fork Semi Spitz they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.