Load Specifications
Load data in caliber .416 Rigby with .416 | 245gr | Sax KJG-BCS bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Accurate 4064 and Vihtavuori N140.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 40,524 psi | 86% | 2749 fps | 99.9% |
| Accurate 2495 | <<locked>> | 90% | 42,511 psi | 90% | 2844 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 41,945 psi | 89% | 2841 fps | 98.5% |
| Accurate 4064 | <<locked>> | 92% | 42,598 psi | 90% | 2874 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 41,829 psi | 89% | 2808 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 84% | 40,306 psi | 86% | 2825 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 42,656 psi | 90% | 2858 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 41,989 psi | 89% | 2858 fps | 96.5% |
| Bofors RP3 | <<locked>> | 92% | 41,539 psi | 88% | 2858 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 41,597 psi | 88% | 2759 fps | 97.3% |
| Hodgdon BL-C2 | <<locked>> | 86% | 42,569 psi | 90% | 2874 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 86% | 42,496 psi | 90% | 2854 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 40,828 psi | 87% | 2867 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,113 psi | 72% | 1860 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 41,017 psi | 87% | 2867 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 41,829 psi | 89% | 2808 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 86% | 40,321 psi | 86% | 2818 fps | 98.1% |
| Lovex S062 | <<locked>> | 90% | 42,018 psi | 89% | 2825 fps | 97% |
| Norma 201 | <<locked>> | 86% | 41,365 psi | 88% | 2799 fps | 96.8% |
| Norma 202 | <<locked>> | 86% | 41,452 psi | 88% | 2818 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,200 psi | 73% | 1903 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 42,148 psi | 89% | 2949 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 82% | 40,132 psi | 85% | 2756 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 88% | 41,698 psi | 88% | 2795 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 94% | 41,437 psi | 88% | 2848 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 40,321 psi | 86% | 2818 fps | 98.1% |
| Shooters World Precision | <<locked>> | 90% | 42,018 psi | 89% | 2825 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 40,828 psi | 87% | 2720 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 40,190 psi | 85% | 2720 fps | 99.3% |
| Somchem S321 | <<locked>> | 82% | 42,061 psi | 89% | 2831 fps | 97.2% |
| Somchem S335 | <<locked>> | 84% | 40,190 psi | 85% | 2723 fps | 99.2% |
| Somchem S355 | <<locked>> | 94% | 42,583 psi | 90% | 2858 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 84% | 40,712 psi | 86% | 2730 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 88% | 40,263 psi | 85% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 41,698 psi | 88% | 2799 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 94% | 40,872 psi | 87% | 2792 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 84% | 41,843 psi | 89% | 2802 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 88% | 40,263 psi | 85% | 2785 fps | 98.5% |
| Winchester 748 | <<locked>> | 84% | 40,495 psi | 86% | 2838 fps | 97.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,000 psi | 81% | 2697 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 30,501 psi | 65% | 2575 fps | 98.7% |
| Accurate 2520 | <<locked>> | 80% | 36,463 psi | 77% | 2723 fps | 97.2% |
| Accurate 4064 | 81.2 gr | 80% | 28,877 psi | 61% | 2543 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,883 psi | 78% | 2694 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 80% | 35,215 psi | 75% | 2720 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,030 psi | 85% | 2799 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 39,305 psi | 83% | 2799 fps | 95.7% |
| Bofors RP3 | <<locked>> | 90% | 38,812 psi | 82% | 2802 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,030 psi | 83% | 2703 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,621 psi | 73% | 2694 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 84% | 39,885 psi | 85% | 2795 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 38,159 psi | 81% | 2805 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,251 psi | 54% | 1663 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 33,620 psi | 71% | 2697 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 36,883 psi | 78% | 2694 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 80% | 32,822 psi | 70% | 2641 fps | 95.9% |
| Lovex S062 | <<locked>> | 86% | 37,159 psi | 79% | 2717 fps | 95.5% |
| Norma 201 | <<locked>> | 82% | 36,463 psi | 77% | 2684 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 34,069 psi | 72% | 2651 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,338 psi | 54% | 1703 fps | 100% |
| ReloadSwiss RS 60 | 95.8 gr | 88% | 34,635 psi | 73% | 2753 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 37,753 psi | 80% | 2700 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 36,854 psi | 78% | 2687 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 92% | 38,725 psi | 82% | 2789 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,822 psi | 70% | 2641 fps | 95.9% |
| Shooters World Precision | <<locked>> | 86% | 37,159 psi | 79% | 2717 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,027 psi | 76% | 2615 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,312 psi | 62% | 2464 fps | 96.5% |
| Somchem S321 | <<locked>> | 80% | 39,305 psi | 83% | 2772 fps | 96.4% |
| Somchem S335 | <<locked>> | 80% | 35,491 psi | 75% | 2618 fps | 98.2% |
| Somchem S355 | <<locked>> | 92% | 39,987 psi | 85% | 2802 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 35,984 psi | 76% | 2628 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 31,082 psi | 66% | 2585 fps | 98.7% |
| Vihtavuori N140 | 82.1 gr | 80% | 32,213 psi | 68% | 2585 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 90% | 35,839 psi | 76% | 2684 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 36,666 psi | 78% | 2687 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 30,995 psi | 66% | 2562 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 35,404 psi | 75% | 2720 fps | 95.8% |
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 73 powders for .416 Rigby loaded with the .416 | 245gr | Sax KJG-BCS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,860 fps to 2,949 fps. Accurate 4350 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 60, Accurate 4064, Vihtavuori N140 rank at the top here: for .416 Rigby with the .416 | 245gr | Sax KJG-BCS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, ADI AR 2208, Alliant Power Pro 2000-MR 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.