Load Specifications
Load data in caliber 10.3 x 60 R Swiss with .416 | 350gr | Reichenberg Super Penetr. bullet and 28 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 4064, Accurate 2495 and SNPE Vectan Tubal 5000.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 88% | 33,837 psi | 86% | 2093 fps | 99.9% |
| Accurate 2520 | <<locked>> | 82% | 33,881 psi | 87% | 2090 fps | 97.8% |
| Accurate 4064 | <<locked>> | 90% | 33,953 psi | 87% | 2116 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 34,969 psi | 89% | 2070 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 84% | 35,302 psi | 90% | 2123 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 34,635 psi | 88% | 2123 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,402 psi | 85% | 1368 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 33,707 psi | 86% | 2116 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 82% | 34,969 psi | 89% | 2070 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 86% | 34,867 psi | 89% | 2119 fps | 98% |
| Lovex S062 | <<locked>> | 88% | 34,679 psi | 89% | 2083 fps | 96.3% |
| Norma 201 | <<locked>> | 84% | 34,301 psi | 88% | 2064 fps | 96.1% |
| Norma 202 | <<locked>> | 84% | 34,243 psi | 87% | 2080 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,562 psi | 86% | 1404 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 34,635 psi | 88% | 2172 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 86% | 34,635 psi | 88% | 2060 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,867 psi | 89% | 2119 fps | 98% |
| Shooters World Precision | <<locked>> | 88% | 34,679 psi | 89% | 2083 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 34,403 psi | 88% | 2005 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 33,518 psi | 86% | 2008 fps | 99% |
| Somchem S335 | <<locked>> | 82% | 33,518 psi | 86% | 2008 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 82% | 34,301 psi | 88% | 2014 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 88% | 35,186 psi | 90% | 2103 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 34,548 psi | 88% | 2070 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 92% | 33,170 psi | 85% | 2060 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 82% | 34,824 psi | 89% | 2067 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 88% | 35,273 psi | 90% | 2100 fps | 98.5% |
| Winchester 748 | <<locked>> | 82% | 33,402 psi | 85% | 2093 fps | 96.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | 53.7 gr | 80% | 25,701 psi | 66% | 1926 fps | 98.6% |
| Accurate 2520 | <<locked>> | 80% | 31,647 psi | 81% | 2047 fps | 97.1% |
| Accurate 4064 | 53.7 gr | 80% | 24,424 psi | 62% | 1903 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 32,895 psi | 84% | 2028 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 30,966 psi | 79% | 2044 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 30,197 psi | 77% | 2031 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,671 psi | 63% | 1220 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 29,501 psi | 75% | 2028 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 32,895 psi | 84% | 2028 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 80% | 28,210 psi | 72% | 1985 fps | 95.8% |
| Lovex S062 | <<locked>> | 86% | 32,590 psi | 83% | 2044 fps | 95.5% |
| Norma 201 | <<locked>> | 82% | 32,111 psi | 82% | 2018 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 30,066 psi | 77% | 1995 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,584 psi | 63% | 1250 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 30,414 psi | 78% | 2070 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 84% | 32,561 psi | 83% | 2021 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,210 psi | 72% | 1985 fps | 95.8% |
| Shooters World Precision | <<locked>> | 86% | 32,590 psi | 83% | 2044 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,300 psi | 82% | 1965 fps | 97.8% |
| SNPE Vectan Tubal 5000 | 51.9 gr | 80% | 26,063 psi | 67% | 1854 fps | 96.7% |
| Somchem S335 | <<locked>> | 80% | 31,575 psi | 81% | 1972 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 80% | 32,213 psi | 82% | 1975 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 27,079 psi | 69% | 1942 fps | 98.9% |
| Vihtavuori N140 | <<locked>> | 80% | 28,413 psi | 73% | 1942 fps | 97% |
| Vihtavuori N150 | <<locked>> | 90% | 31,198 psi | 80% | 2021 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 32,547 psi | 83% | 2021 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 27,166 psi | 69% | 1929 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 31,140 psi | 80% | 2047 fps | 95.9% |
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 64 powders for 10.3 x 60 R Swiss loaded with the .416 | 350gr | Reichenberg Super Penetr.. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,172 fps; across all powders the maximum-charge window runs from 1,368 fps to 2,172 fps. Accurate 4350 gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (270 MPa), the top charges use 81–90 %, leaving at least 10 % headroom. Accurate 4350, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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. Accurate 4064, Accurate 2495, SNPE Vectan Tubal 5000 rank at the top here: for 10.3 x 60 R Swiss with the .416 | 350gr | Reichenberg Super Penetr. they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, ADI AR 2206H, ADI AR 2208 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.