Load Specifications
Load data in caliber 10.3 x 60 R Swiss with .416 | 410gr | Peregrine VRG-2 bullet and 41 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 N135.
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% | 35,215 psi | 90% | 1837 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 35,157 psi | 90% | 1900 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 33,083 psi | 84% | 1864 fps | 98.4% |
| Accurate 4064 | <<locked>> | 92% | 35,215 psi | 90% | 1923 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 34,476 psi | 88% | 1850 fps | 96.9% |
| Alliant AR-Comp | <<locked>> | 84% | 34,606 psi | 88% | 1890 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 33,489 psi | 86% | 1883 fps | 96.4% |
| Bofors RP3 | <<locked>> | 92% | 34,722 psi | 89% | 1919 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 84% | 33,837 psi | 86% | 1893 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 34,708 psi | 89% | 1883 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 35,056 psi | 90% | 1926 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,417 psi | 85% | 1207 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 33,823 psi | 86% | 1850 fps | 95.8% |
| IMR 3031 | <<locked>> | 86% | 35,230 psi | 90% | 1923 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 35,128 psi | 90% | 1916 fps | 96% |
| IMR 8208 XBR | <<locked>> | 82% | 34,476 psi | 88% | 1850 fps | 96.9% |
| Lovex D073.6 | <<locked>> | 86% | 34,026 psi | 87% | 1893 fps | 98.6% |
| Lovex S062 | <<locked>> | 88% | 33,968 psi | 87% | 1860 fps | 97% |
| Norma 201 | <<locked>> | 84% | 33,576 psi | 86% | 1837 fps | 96.8% |
| Norma 202 | <<locked>> | 84% | 33,446 psi | 85% | 1854 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,243 psi | 85% | 1234 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 34,011 psi | 87% | 1946 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 82% | 34,650 psi | 88% | 1841 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 86% | 33,823 psi | 86% | 1837 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 94% | 34,664 psi | 89% | 1909 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,026 psi | 87% | 1893 fps | 98.6% |
| Shooters World Precision | <<locked>> | 88% | 33,968 psi | 87% | 1860 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 35,331 psi | 90% | 1886 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 33,736 psi | 86% | 1785 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 35,012 psi | 89% | 1824 fps | 99.6% |
| Somchem S335 | <<locked>> | 84% | 35,099 psi | 90% | 1827 fps | 99.5% |
| Somchem S355 | <<locked>> | 92% | 33,982 psi | 87% | 1883 fps | 96.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 31,154 psi | 80% | 1890 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 82% | 33,649 psi | 86% | 1791 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 88% | 34,461 psi | 88% | 1870 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 33,823 psi | 86% | 1844 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 94% | 34,722 psi | 89% | 1877 fps | 97.6% |
| Vihtavuori N530 | <<locked>> | 82% | 34,098 psi | 87% | 1844 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 88% | 34,563 psi | 88% | 1873 fps | 99% |
| Winchester 748 | <<locked>> | 84% | 35,041 psi | 89% | 1909 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 34,272 psi | 88% | 1886 fps | 96.2% |
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% | 32,895 psi | 84% | 1801 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 24,903 psi | 64% | 1716 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 30,893 psi | 79% | 1827 fps | 97.8% |
| Accurate 4064 | 46.4 gr | 80% | 23,699 psi | 61% | 1699 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 32,314 psi | 83% | 1811 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 80% | 30,269 psi | 77% | 1818 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 31,546 psi | 81% | 1847 fps | 95.8% |
| Bofors RP3 | <<locked>> | 88% | 30,269 psi | 77% | 1841 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 29,486 psi | 75% | 1811 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 82% | 32,518 psi | 83% | 1841 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 30,893 psi | 79% | 1847 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,613 psi | 63% | 1076 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 31,691 psi | 81% | 1811 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 28,964 psi | 74% | 1811 fps | 99.3% |
| IMR 4895 | <<locked>> | 86% | 32,895 psi | 84% | 1873 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 32,314 psi | 83% | 1811 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 80% | 27,528 psi | 70% | 1772 fps | 96.6% |
| Lovex S062 | <<locked>> | 84% | 29,907 psi | 76% | 1785 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 29,544 psi | 75% | 1762 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 29,385 psi | 75% | 1778 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,584 psi | 63% | 1102 fps | 100% |
| ReloadSwiss RS 60 | 53.4 gr | 86% | 27,891 psi | 71% | 1811 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 32,634 psi | 83% | 1804 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 29,820 psi | 76% | 1762 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 30,226 psi | 77% | 1831 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 27,528 psi | 70% | 1772 fps | 96.6% |
| Shooters World Precision | <<locked>> | 84% | 29,907 psi | 76% | 1785 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 33,141 psi | 85% | 1847 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,676 psi | 81% | 1752 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 25,512 psi | 65% | 1650 fps | 97.4% |
| Somchem S335 | <<locked>> | 80% | 30,980 psi | 79% | 1755 fps | 98.9% |
| Somchem S355 | <<locked>> | 90% | 31,981 psi | 82% | 1847 fps | 95.3% |
| Somchem S365 | <<locked>> | 98% | 29,254 psi | 75% | 1850 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 31,647 psi | 81% | 1759 fps | 99.8% |
| Vihtavuori N135 | 44.8 gr | 80% | 26,440 psi | 68% | 1729 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 27,847 psi | 71% | 1736 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 88% | 28,616 psi | 73% | 1765 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 31,879 psi | 81% | 1801 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 26,498 psi | 68% | 1722 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 30,574 psi | 78% | 1827 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 32,126 psi | 82% | 1847 fps | 95.4% |
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 69 powders for 10.3 x 60 R Swiss loaded with the .416 | 410gr | Peregrine VRG-2. ReloadSwiss RS 60 delivers the highest muzzle velocity at 1,946 fps; across all powders the maximum-charge window runs from 1,207 fps to 1,946 fps. Accurate 4350 gives the best case fill at 100 %, and 69 of the 69 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 410.0 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 N135 rank at the top here: for 10.3 x 60 R Swiss with the .416 | 410gr | Peregrine VRG-2 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.