Load Specifications
Load data in caliber 10.3 x 60 R Swiss with .416 | 400gr | Nosler Partition bullet and 35 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 N540.
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 2015 | <<locked>> | 82% | 35,433 psi | 90% | 1847 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 33,504 psi | 86% | 1880 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 33,373 psi | 85% | 1873 fps | 98% |
| Accurate 4064 | <<locked>> | 90% | 33,518 psi | 86% | 1896 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 82% | 34,534 psi | 88% | 1854 fps | 96.4% |
| Alliant AR-Comp | <<locked>> | 84% | 34,766 psi | 89% | 1900 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 33,692 psi | 86% | 1890 fps | 95.9% |
| Bofors RP3 | <<locked>> | 92% | 34,853 psi | 89% | 1926 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 84% | 33,866 psi | 86% | 1896 fps | 97% |
| Hodgdon H4895 | <<locked>> | 84% | 34,867 psi | 89% | 1886 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 35,056 psi | 90% | 1929 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,620 psi | 86% | 1214 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 35,230 psi | 90% | 1929 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 82% | 34,534 psi | 88% | 1854 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 86% | 34,127 psi | 87% | 1896 fps | 98.2% |
| Lovex S062 | <<locked>> | 88% | 34,229 psi | 87% | 1867 fps | 96.5% |
| Norma 201 | <<locked>> | 84% | 33,953 psi | 87% | 1847 fps | 96.4% |
| Norma 202 | <<locked>> | 84% | 33,765 psi | 86% | 1864 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,518 psi | 86% | 1240 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 33,953 psi | 87% | 1942 fps | 97.2% |
| Rottweil R 901 | <<locked>> | 82% | 35,404 psi | 90% | 1854 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 86% | 34,185 psi | 87% | 1844 fps | 96.4% |
| Rottweil R 903 | <<locked>> | 94% | 34,795 psi | 89% | 1916 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,127 psi | 87% | 1896 fps | 98.2% |
| Shooters World Precision | <<locked>> | 88% | 34,229 psi | 87% | 1867 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 33,997 psi | 87% | 1795 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 35,012 psi | 89% | 1831 fps | 99.4% |
| Somchem S335 | <<locked>> | 84% | 35,317 psi | 90% | 1834 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 82% | 33,823 psi | 86% | 1798 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 88% | 34,505 psi | 88% | 1880 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 33,881 psi | 87% | 1850 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 94% | 34,795 psi | 89% | 1883 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 82% | 34,185 psi | 87% | 1847 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 88% | 34,563 psi | 88% | 1880 fps | 98.6% |
| Winchester 748 | <<locked>> | 84% | 34,940 psi | 89% | 1913 fps | 97.5% |
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 2015 | <<locked>> | 80% | 33,330 psi | 85% | 1811 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 25,759 psi | 66% | 1736 fps | 99% |
| Accurate 2520 | <<locked>> | 80% | 31,198 psi | 80% | 1834 fps | 97.4% |
| Accurate 4064 | 45.4 gr | 80% | 24,453 psi | 62% | 1713 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 32,401 psi | 83% | 1814 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 30,530 psi | 78% | 1827 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 31,575 psi | 81% | 1847 fps | 95.1% |
| Bofors RP3 | <<locked>> | 90% | 32,547 psi | 83% | 1886 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 29,776 psi | 76% | 1821 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 82% | 32,663 psi | 83% | 1847 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 32,953 psi | 84% | 1890 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,714 psi | 63% | 1079 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 29,269 psi | 75% | 1818 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 32,401 psi | 83% | 1814 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 80% | 27,876 psi | 71% | 1781 fps | 96.2% |
| Lovex S062 | <<locked>> | 84% | 30,226 psi | 77% | 1791 fps | 95% |
| Norma 201 | <<locked>> | 82% | 32,010 psi | 82% | 1811 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 29,733 psi | 76% | 1788 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,772 psi | 63% | 1106 fps | 100% |
| ReloadSwiss RS 60 | 53.6 gr | 88% | 30,066 psi | 77% | 1857 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 33,402 psi | 85% | 1818 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 82% | 30,400 psi | 78% | 1775 fps | 95% |
| Rottweil R 903 | <<locked>> | 92% | 32,503 psi | 83% | 1877 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 27,876 psi | 71% | 1781 fps | 96.2% |
| Shooters World Precision | <<locked>> | 84% | 30,226 psi | 77% | 1791 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,981 psi | 82% | 1759 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,904 psi | 66% | 1660 fps | 97% |
| Somchem S335 | <<locked>> | 80% | 31,256 psi | 80% | 1762 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 80% | 31,778 psi | 81% | 1765 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 26,847 psi | 69% | 1739 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 28,079 psi | 72% | 1739 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 90% | 30,719 psi | 78% | 1808 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 32,010 psi | 82% | 1808 fps | 95.6% |
| Vihtavuori N540 | 47.4 gr | 80% | 26,832 psi | 69% | 1729 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 30,763 psi | 79% | 1834 fps | 96.1% |
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 67 powders for 10.3 x 60 R Swiss loaded with the .416 | 400gr | Nosler Partition. ReloadSwiss RS 60 delivers the highest muzzle velocity at 1,942 fps; across all powders the maximum-charge window runs from 1,214 fps to 1,942 fps. Accurate 4350 gives the best case fill at 100 %, and 67 of the 67 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (270 MPa), the top charges use 80–90 %, 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 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. ReloadSwiss RS 60, Accurate 4064, Vihtavuori N540 rank at the top here: for 10.3 x 60 R Swiss with the .416 | 400gr | Nosler Partition 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. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.