Load Specifications
Load data in caliber 7 x 50 R with .284 | 173gr | Sellier & Bellot SPCE bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and ReloadSwiss RS 40.
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 1680 | <<locked>> | 86% | 47,645 psi | 90% | 1965 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 46,557 psi | 88% | 2024 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 45,194 psi | 85% | 2031 fps | 98.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,262 psi | 74% | 2018 fps | 99.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 42,670 psi | 81% | 2047 fps | 97.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 32,256 psi | 61% | 1909 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 90% | 45,658 psi | 86% | 1936 fps | 99.3% |
| Accurate LT-32 | <<locked>> | 90% | 46,137 psi | 87% | 1942 fps | 98% |
| ADI AR 2207 | <<locked>> | 90% | 47,427 psi | 90% | 1998 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 45,861 psi | 87% | 2047 fps | 99.3% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 46,137 psi | 87% | 2034 fps | 96.3% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 43,294 psi | 82% | 2051 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 46,050 psi | 87% | 2103 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 96% | 47,485 psi | 90% | 2044 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 46,905 psi | 89% | 1982 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 46,528 psi | 88% | 1975 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 98% | 46,891 psi | 89% | 2005 fps | 97.1% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 42,728 psi | 81% | 2047 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 98% | 45,861 psi | 87% | 2047 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 94% | 47,703 psi | 90% | 2080 fps | 98.9% |
| Hodgdon H4198 | <<locked>> | 90% | 47,166 psi | 89% | 1965 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,850 psi | 60% | 1191 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 37,014 psi | 70% | 1975 fps | 98.7% |
| IMR 4198 | <<locked>> | 94% | 47,210 psi | 89% | 1995 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 45,063 psi | 85% | 1906 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 46,137 psi | 87% | 2034 fps | 96.3% |
| Lovex D073.4 | <<locked>> | 90% | 46,398 psi | 88% | 2044 fps | 98% |
| Lovex D073.5 | <<locked>> | 96% | 45,136 psi | 85% | 2031 fps | 97.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 39,189 psi | 74% | 1998 fps | 96.9% |
| Lovex S053 | <<locked>> | 84% | 46,847 psi | 88% | 1903 fps | 100% |
| Norma 200 | <<locked>> | 92% | 47,892 psi | 90% | 2031 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 41,350 psi | 78% | 2001 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,386 psi | 59% | 1217 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 47,616 psi | 90% | 1972 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 46,427 psi | 88% | 2041 fps | 97.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 46,166 psi | 87% | 2031 fps | 98.5% |
| Shooters World AR Plus | <<locked>> | 90% | 46,398 psi | 88% | 2044 fps | 98% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 39,189 psi | 74% | 1998 fps | 96.9% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 47,398 psi | 90% | 2011 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 45,701 psi | 86% | 1775 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 45,716 psi | 86% | 2047 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 45,672 psi | 86% | 2014 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 46,064 psi | 87% | 1975 fps | 98.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 36,811 psi | 70% | 1867 fps | 97.7% |
| Somchem S321 | <<locked>> | 98% | 46,862 psi | 89% | 2070 fps | 96.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 43,743 psi | 83% | 1972 fps | 98.9% |
| Vihtavuori N120 | <<locked>> | 90% | 47,572 psi | 90% | 1962 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 45,934 psi | 87% | 1978 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 44,976 psi | 85% | 1978 fps | 99.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,057 psi | 70% | 1946 fps | 99.4% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 39,827 psi | 75% | 1955 fps | 97.9% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 46,905 psi | 89% | 2041 fps | 96.5% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 37,971 psi | 72% | 1946 fps | 96.9% |
| Winchester 748 | <<locked>> | 98% | 45,774 psi | 86% | 2080 fps | 97.2% |
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 1680 | <<locked>> | 80% | 39,523 psi | 75% | 1860 fps | 99.8% |
| Accurate 2015 | <<locked>> | 80% | 25,266 psi | 48% | 1683 fps | 96% |
| Accurate 2460 | <<locked>> | 86% | 32,518 psi | 61% | 1844 fps | 95.3% |
| Accurate 2495 | <<locked>> | 84% | 23,119 psi | 44% | 1726 fps | 95.4% |
| Accurate 2520 | <<locked>> | 94% | 34,621 psi | 65% | 1926 fps | 95.5% |
| Accurate 4064 | <<locked>> | 96% | 28,442 psi | 54% | 1837 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 33,968 psi | 64% | 1765 fps | 97.2% |
| Accurate LT-32 | <<locked>> | 80% | 34,389 psi | 65% | 1768 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 35,331 psi | 67% | 1844 fps | 100% |
| ADI AR 2219 | 19.1 gr | 80% | 30,980 psi | 59% | 1814 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 96% | 40,944 psi | 77% | 1965 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 23,525 psi | 44% | 1690 fps | 97.6% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 42,975 psi | 81% | 2064 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,153 psi | 55% | 1768 fps | 98.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,796 psi | 70% | 1844 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 31,908 psi | 60% | 1759 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 92% | 39,189 psi | 74% | 1896 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 98% | 39,929 psi | 75% | 2008 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 84% | 29,747 psi | 56% | 1788 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 82% | 32,184 psi | 61% | 1844 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 35,491 psi | 67% | 1798 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,264 psi | 44% | 1056 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 27,586 psi | 52% | 1791 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 31,778 psi | 60% | 1768 fps | 99.5% |
| IMR 4227 | <<locked>> | 80% | 42,598 psi | 80% | 1877 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 40,944 psi | 77% | 1965 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 82% | 35,085 psi | 66% | 1883 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 90% | 36,738 psi | 69% | 1913 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 96% | 34,621 psi | 65% | 1926 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 41,974 psi | 79% | 1847 fps | 100% |
| Norma 200 | <<locked>> | 80% | 33,185 psi | 63% | 1827 fps | 99.6% |
| Norma 202 | <<locked>> | 90% | 30,734 psi | 58% | 1824 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,018 psi | 43% | 1083 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,119 psi | 80% | 1906 fps | 100% |
| ReloadSwiss RS 40 | 20.7 gr | 88% | 35,984 psi | 68% | 1890 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 88% | 32,343 psi | 61% | 1818 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 82% | 35,085 psi | 66% | 1883 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 96% | 34,621 psi | 65% | 1926 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 44,251 psi | 84% | 1972 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,233 psi | 74% | 1699 fps | 100% |
| SNPE Vectan SP 10 | 20.2 gr | 82% | 32,851 psi | 62% | 1850 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 30,182 psi | 57% | 1772 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 31,676 psi | 60% | 1765 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 28,950 psi | 55% | 1726 fps | 95.1% |
| Somchem S321 | <<locked>> | 94% | 40,973 psi | 77% | 1991 fps | 95.5% |
| Somchem S335 | <<locked>> | 86% | 28,747 psi | 54% | 1732 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 35,534 psi | 67% | 1814 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,543 psi | 54% | 1713 fps | 98% |
| Vihtavuori N133 | <<locked>> | 80% | 24,932 psi | 47% | 1644 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 86% | 24,381 psi | 46% | 1699 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 92% | 31,009 psi | 59% | 1808 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 96% | 40,814 psi | 77% | 1959 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 96% | 33,765 psi | 64% | 1873 fps | 95.6% |
| Winchester 748 | <<locked>> | 92% | 37,594 psi | 71% | 1959 fps | 95% |
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 54 powders for 7 x 50 R loaded with the .284 | 173gr | Sellier & Bellot SPCE. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,103 fps; across all powders the maximum-charge window runs from 1,191 fps to 2,103 fps. Accurate 2015 gives the best case fill at 100 %, and 54 of the 54 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 173.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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. SNPE Vectan SP 10, ADI AR 2219, ReloadSwiss RS 40 rank at the top here: for 7 x 50 R with the .284 | 173gr | Sellier & Bellot SPCE they combine a high case fill with complete burn and sit in the upper velocity band. 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.