Load Specifications
Bullet:.416 | 400gr | Woodleigh HS
Bullet Manufacturer:Woodleigh
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:1:20.0
Load data in caliber .416 Weath. Mag. with .416 | 400gr | Woodleigh HS bullet and 108 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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>> | 84% | 57,566 psi | 90% | 2398 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,463 psi | 88% | 2431 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,492 psi | 89% | 2484 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,144 psi | 88% | 2461 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,714 psi | 69% | 2340 fps | 97.9% |
| Accurate 4064 | <<locked>> | 90% | 56,507 psi | 89% | 2480 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,173 psi | 88% | 2575 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 56,565 psi | 89% | 2472 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,508 psi | 90% | 2475 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2471 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,521 psi | 87% | 2461 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,840 psi | 89% | 2393 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,202 psi | 88% | 2587 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,638 psi | 90% | 2493 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,708 psi | 86% | 2470 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,246 psi | 90% | 2581 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,824 psi | 86% | 2568 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 49,980 psi | 78% | 2462 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,988 psi | 64% | 2365 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,086 psi | 58% | 2281 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,688 psi | 73% | 2518 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,318 psi | 88% | 2494 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 54,839 psi | 86% | 2466 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 43,410 psi | 68% | 2451 fps | 96.1% |
| Bofors RP7 | <<locked>> | 94% | 54,723 psi | 86% | 2446 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,159 psi | 90% | 2405 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,766 psi | 86% | 2493 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,101 psi | 89% | 2589 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 55,651 psi | 87% | 2401 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,593 psi | 87% | 2480 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 56,666 psi | 89% | 2555 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 98% | 57,217 psi | 90% | 2559 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 86% | 57,130 psi | 90% | 2479 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,679 psi | 86% | 2469 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,724 psi | 89% | 2552 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,492 psi | 87% | 2574 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,289 psi | 57% | 1455 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,087 psi | 89% | 2503 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,883 psi | 88% | 2436 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,289 psi | 88% | 2487 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,506 psi | 87% | 2429 fps | 99% |
| IMR 4350 | <<locked>> | 98% | 54,926 psi | 86% | 2516 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,579 psi | 89% | 2513 fps | 99.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,517 psi | 79% | 2444 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 56,115 psi | 88% | 2494 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,521 psi | 87% | 2424 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,492 psi | 89% | 2449 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,985 psi | 88% | 2405 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,927 psi | 89% | 2452 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,999 psi | 88% | 2467 fps | 99.7% |
| Lovex S070 | <<locked>> | 98% | 57,276 psi | 90% | 2503 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,492 psi | 57% | 2212 fps | 96% |
| Norma 201 | <<locked>> | 86% | 55,303 psi | 87% | 2420 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,985 psi | 88% | 2419 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,377 psi | 90% | 2501 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,347 psi | 87% | 2520 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 46,833 psi | 73% | 2477 fps | 97.5% |
| Norma URP | <<locked>> | 98% | 55,550 psi | 87% | 2522 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 54,360 psi | 85% | 2484 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 53,563 psi | 84% | 2523 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 55,579 psi | 87% | 2452 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,288 psi | 87% | 2464 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,260 psi | 88% | 2430 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 57% | 1492 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,825 psi | 87% | 2468 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,361 psi | 87% | 2530 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,607 psi | 86% | 2562 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,826 psi | 89% | 2559 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,911 psi | 86% | 2585 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 56,434 psi | 88% | 2397 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,869 psi | 88% | 2420 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,694 psi | 86% | 2460 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 52,518 psi | 82% | 2446 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,907 psi | 77% | 2446 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 54,723 psi | 86% | 2446 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,999 psi | 88% | 2467 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,492 psi | 89% | 2449 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,927 psi | 89% | 2452 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,985 psi | 89% | 2543 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,217 psi | 88% | 2514 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,012 psi | 85% | 2432 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,882 psi | 86% | 2450 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,724 psi | 89% | 2358 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,014 psi | 89% | 2361 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,260 psi | 88% | 2429 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2487 fps | 97.2% |
| Somchem S321 | <<locked>> | 82% | 56,550 psi | 89% | 2454 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,043 psi | 88% | 2359 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,464 psi | 90% | 2469 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,868 psi | 86% | 2455 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,272 psi | 83% | 2523 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,327 psi | 77% | 2428 fps | 97.6% |
| Unknown powder | <<locked>> | 96% | 56,144 psi | 88% | 2529 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 82% | 55,506 psi | 87% | 2308 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,478 psi | 89% | 2339 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,709 psi | 87% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,637 psi | 87% | 2393 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 52,939 psi | 83% | 2398 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,681 psi | 89% | 2502 fps | 100% |
| Vihtavuori N530 | <<locked>> | 82% | 55,143 psi | 86% | 2427 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,071 psi | 86% | 2419 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,869 psi | 89% | 2546 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,427 psi | 73% | 2429 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,508 psi | 90% | 2497 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,521 psi | 89% | 2474 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,666 psi | 89% | 2555 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,362 psi | 59% | 2389 fps | 99.9% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,620 psi | 82% | 2447 fps | 96.9% |
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% | 50,966 psi | 80% | 2320 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,772 psi | 69% | 2270 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,284 psi | 77% | 2395 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 38,232 psi | 60% | 2182 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 35,201 psi | 55% | 2199 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 41,452 psi | 65% | 2274 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,574 psi | 48% | 2146 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 80% | 47,079 psi | 74% | 2339 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 39,987 psi | 63% | 2212 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 44,773 psi | 70% | 2373 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,124 psi | 77% | 2375 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,024 psi | 78% | 2314 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,931 psi | 67% | 2383 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,842 psi | 62% | 2233 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,714 psi | 67% | 2289 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,024 psi | 49% | 2115 fps | 96.3% |
| Alliant Reloder-17 | 80.3 gr | 80% | 34,345 psi | 54% | 2222 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 96% | 43,976 psi | 69% | 2366 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,280 psi | 40% | 1996 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,708 psi | 54% | 2231 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,460 psi | 51% | 2243 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,195 psi | 72% | 2351 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 39,566 psi | 62% | 2240 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 40,756 psi | 64% | 2402 fps | 95.3% |
| Bofors RP7 | <<locked>> | 84% | 40,335 psi | 63% | 2218 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,705 psi | 79% | 2322 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,124 psi | 75% | 2402 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,301 psi | 84% | 2536 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 52,243 psi | 82% | 2359 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,234 psi | 63% | 2244 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 82% | 37,985 psi | 60% | 2256 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 39,813 psi | 62% | 2283 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 47,514 psi | 74% | 2347 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,500 psi | 45% | 2031 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,988 psi | 64% | 2329 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 39,102 psi | 61% | 2302 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 42% | 1297 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,293 psi | 66% | 2290 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 43,700 psi | 68% | 2275 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,291 psi | 62% | 2228 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 38,986 psi | 61% | 2163 fps | 95.8% |
| IMR 4350 | <<locked>> | 86% | 38,058 psi | 60% | 2241 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 36,999 psi | 58% | 2192 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 28,761 psi | 45% | 2046 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 43,772 psi | 69% | 2315 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 49,124 psi | 77% | 2339 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,398 psi | 73% | 2319 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,833 psi | 73% | 2278 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,061 psi | 66% | 2241 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,606 psi | 54% | 2113 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 37,086 psi | 58% | 2183 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 33,808 psi | 53% | 2167 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 46,064 psi | 72% | 2292 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,441 psi | 73% | 2294 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,090 psi | 66% | 2279 fps | 99.7% |
| Norma 204 | <<locked>> | 92% | 45,455 psi | 71% | 2370 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 37,521 psi | 59% | 2319 fps | 95% |
| Norma URP | <<locked>> | 80% | 30,922 psi | 48% | 2105 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 41,684 psi | 65% | 2296 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 34,243 psi | 54% | 2186 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 48,892 psi | 77% | 2358 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,515 psi | 76% | 2371 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,649 psi | 83% | 2383 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 43% | 1329 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,524 psi | 64% | 2230 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,281 psi | 71% | 2385 fps | 99.7% |
| ReloadSwiss RS 60 | 80.3 gr | 80% | 36,535 psi | 57% | 2275 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,197 psi | 47% | 2117 fps | 95.4% |
| ReloadSwiss RS 70 | 83.6 gr | 82% | 32,300 psi | 51% | 2168 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,125 psi | 79% | 2316 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,903 psi | 69% | 2252 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,260 psi | 58% | 2192 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 98% | 50,009 psi | 78% | 2402 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 96% | 42,627 psi | 67% | 2349 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 84% | 40,335 psi | 63% | 2218 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,606 psi | 54% | 2113 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,398 psi | 73% | 2319 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,061 psi | 66% | 2241 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 34,853 psi | 55% | 2178 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,203 psi | 60% | 2239 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,239 psi | 74% | 2335 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,469 psi | 71% | 2316 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,340 psi | 74% | 2240 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,552 psi | 62% | 2131 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,377 psi | 60% | 2156 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 39,624 psi | 62% | 2339 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 53,069 psi | 83% | 2409 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,949 psi | 74% | 2242 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,050 psi | 74% | 2331 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,029 psi | 60% | 2195 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 27,688 psi | 43% | 2065 fps | 98.2% |
| Somchem S385 | <<locked>> | 94% | 40,451 psi | 63% | 2286 fps | 95.6% |
| Unknown powder | <<locked>> | 80% | 33,620 psi | 53% | 2153 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 80% | 52,315 psi | 82% | 2271 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,802 psi | 70% | 2191 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,642 psi | 68% | 2260 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,497 psi | 68% | 2232 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,518 psi | 51% | 2069 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 33,446 psi | 52% | 2130 fps | 96.8% |
| Vihtavuori N530 | <<locked>> | 80% | 51,779 psi | 81% | 2383 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,004 psi | 67% | 2252 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,953 psi | 53% | 2167 fps | 96.9% |
| Vihtavuori N555 | <<locked>> | 84% | 27,064 psi | 42% | 2061 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,865 psi | 50% | 2087 fps | 98.3% |
| Winchester 748 | <<locked>> | 80% | 52,910 psi | 83% | 2429 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 37,985 psi | 60% | 2256 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,164 psi | 39% | 2060 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,570 psi | 70% | 2346 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 108 powders for .416 Weath. Mag. loaded with the .416 | 400gr | Woodleigh HS. Hodgdon CFE223 delivers the highest muzzle velocity at 2,589 fps; across all powders the maximum-charge window runs from 1,455 fps to 2,589 fps. Accurate 3100 gives the best case fill at 100 %, and 108 of the 108 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 1:20.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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. Alliant Reloder-17, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for .416 Weath. Mag. with the .416 | 400gr | Woodleigh HS 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.