Load Specifications
Load data in caliber .350 Mag. Rigby with .355 | 170gr | Barnes VOT-TX TSX bullet and 46 powders. The key underlying parameters are shown in the table above.
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% | 38,319 psi | 85% | 2779 fps | 99.5% |
| Accurate 2015 | <<locked>> | 82% | 38,319 psi | 85% | 2779 fps | 99.5% |
| Accurate 2495 | <<locked>> | 90% | 39,581 psi | 88% | 2864 fps | 99.8% |
| Accurate 2495 | <<locked>> | 90% | 39,581 psi | 88% | 2864 fps | 99.8% |
| Accurate 2520 | <<locked>> | 84% | 39,233 psi | 87% | 2858 fps | 97.2% |
| Accurate 2520 | <<locked>> | 84% | 39,233 psi | 87% | 2858 fps | 97.2% |
| Accurate 4064 | <<locked>> | 92% | 39,668 psi | 88% | 2890 fps | 98.4% |
| Accurate 4064 | <<locked>> | 92% | 39,668 psi | 88% | 2890 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 86% | 40,408 psi | 90% | 2910 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 40,408 psi | 90% | 2910 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 82% | 39,508 psi | 88% | 2782 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 82% | 39,508 psi | 88% | 2782 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 86% | 39,929 psi | 89% | 2890 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 86% | 39,929 psi | 89% | 2890 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,605 psi | 75% | 1906 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,605 psi | 75% | 1906 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 38,450 psi | 86% | 2890 fps | 99.2% |
| IMR 3031 | <<locked>> | 86% | 38,450 psi | 86% | 2890 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 88% | 40,393 psi | 90% | 2894 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 88% | 40,393 psi | 90% | 2894 fps | 97.5% |
| Norma 202 | <<locked>> | 86% | 38,943 psi | 87% | 2838 fps | 97.8% |
| Norma 202 | <<locked>> | 86% | 38,943 psi | 87% | 2838 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,736 psi | 75% | 1949 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,736 psi | 75% | 1949 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 39,668 psi | 88% | 2949 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 39,668 psi | 88% | 2949 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 84% | 40,437 psi | 90% | 2835 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 84% | 40,437 psi | 90% | 2835 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 40,393 psi | 90% | 2894 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 88% | 40,393 psi | 90% | 2894 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 38,725 psi | 86% | 2746 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 38,725 psi | 86% | 2746 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 40,553 psi | 90% | 2799 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 40,553 psi | 90% | 2799 fps | 98.9% |
| Somchem S335 | <<locked>> | 86% | 40,495 psi | 90% | 2805 fps | 98.8% |
| Somchem S335 | <<locked>> | 86% | 40,495 psi | 90% | 2805 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 84% | 38,595 psi | 86% | 2759 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 84% | 38,595 psi | 86% | 2759 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 90% | 40,263 psi | 90% | 2874 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 90% | 40,263 psi | 90% | 2874 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 88% | 39,349 psi | 88% | 2825 fps | 98.2% |
| Vihtavuori N140 | <<locked>> | 88% | 39,349 psi | 88% | 2825 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 90% | 40,466 psi | 90% | 2861 fps | 98% |
| Vihtavuori N540 | <<locked>> | 90% | 40,466 psi | 90% | 2861 fps | 98% |
| Winchester 748 | <<locked>> | 84% | 38,189 psi | 85% | 2858 fps | 96% |
| Winchester 748 | <<locked>> | 84% | 38,189 psi | 85% | 2858 fps | 96% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 35,882 psi | 80% | 2723 fps | 99.1% |
| Accurate 2015 | <<locked>> | 80% | 35,882 psi | 80% | 2723 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 28,340 psi | 63% | 2585 fps | 97.4% |
| Accurate 2495 | <<locked>> | 80% | 28,340 psi | 63% | 2585 fps | 97.4% |
| Accurate 2520 | <<locked>> | 80% | 34,098 psi | 76% | 2736 fps | 95.6% |
| Accurate 2520 | <<locked>> | 80% | 34,098 psi | 76% | 2736 fps | 95.6% |
| Accurate 4064 | <<locked>> | 84% | 30,632 psi | 68% | 2664 fps | 95.6% |
| Accurate 4064 | <<locked>> | 84% | 30,632 psi | 68% | 2664 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 33,083 psi | 74% | 2746 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 33,083 psi | 74% | 2746 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,130 psi | 83% | 2726 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,130 psi | 83% | 2726 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 84% | 37,318 psi | 83% | 2831 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 84% | 37,318 psi | 83% | 2831 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,845 psi | 55% | 1703 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,845 psi | 55% | 1703 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 31,546 psi | 70% | 2713 fps | 97.4% |
| IMR 3031 | <<locked>> | 80% | 31,546 psi | 70% | 2713 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 82% | 32,967 psi | 73% | 2717 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 82% | 32,967 psi | 73% | 2717 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 32,184 psi | 72% | 2671 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 32,184 psi | 72% | 2671 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,932 psi | 55% | 1745 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,932 psi | 55% | 1745 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 37,304 psi | 83% | 2887 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 37,304 psi | 83% | 2887 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 35,766 psi | 80% | 2726 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 80% | 35,766 psi | 80% | 2726 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 32,967 psi | 73% | 2717 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 32,967 psi | 73% | 2717 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,243 psi | 76% | 2641 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,243 psi | 76% | 2641 fps | 96.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 29,530 psi | 66% | 2536 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 29,530 psi | 66% | 2536 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 33,533 psi | 75% | 2641 fps | 97% |
| Somchem S335 | <<locked>> | 80% | 33,533 psi | 75% | 2641 fps | 97% |
| Vihtavuori N133 | <<locked>> | 80% | 34,127 psi | 76% | 2654 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 80% | 34,127 psi | 76% | 2654 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 80% | 29,124 psi | 65% | 2602 fps | 97.5% |
| Vihtavuori N135 | <<locked>> | 80% | 29,124 psi | 65% | 2602 fps | 97.5% |
| Vihtavuori N140 | <<locked>> | 80% | 30,342 psi | 67% | 2598 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 80% | 30,342 psi | 67% | 2598 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 82% | 31,154 psi | 69% | 2635 fps | 95% |
| Vihtavuori N540 | <<locked>> | 82% | 31,154 psi | 69% | 2635 fps | 95% |
| Winchester 748 | <<locked>> | 82% | 35,694 psi | 79% | 2795 fps | 95% |
| Winchester 748 | <<locked>> | 82% | 35,694 psi | 79% | 2795 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 46 powders for .350 Mag. Rigby loaded with the .355 | 170gr | Barnes VOT-TX TSX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,906 fps to 2,949 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 46 of the 46 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, Hodgdon TrailBoss, ReloadSwiss RS 14 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.