Load Specifications
Load data in caliber 7 x 50 R with .285 | 173gr | Prvi Partizan FMJ BT bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Hodgdon H335 and Lovex D073.5.
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>> | 84% | 45,803 psi | 87% | 1952 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 47,848 psi | 90% | 2047 fps | 100% |
| Accurate 2460 | <<locked>> | 96% | 46,412 psi | 88% | 2057 fps | 98.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,737 psi | 68% | 1962 fps | 99.4% |
| Accurate 2520ᴾ | <<locked>> | 100% | 46,064 psi | 87% | 2087 fps | 98.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 33,359 psi | 63% | 1936 fps | 96.9% |
| Accurate LT-30 | <<locked>> | 90% | 46,340 psi | 88% | 1955 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 90% | 46,862 psi | 89% | 1962 fps | 98.3% |
| ADI AR 2207 | <<locked>> | 88% | 45,847 psi | 87% | 1988 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 46,470 psi | 88% | 2067 fps | 99.5% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 47,210 psi | 89% | 2060 fps | 96.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 43,845 psi | 83% | 2067 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 46,731 psi | 88% | 2126 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 94% | 45,730 psi | 86% | 2031 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 47,732 psi | 90% | 1998 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 47,021 psi | 89% | 1988 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 45,150 psi | 85% | 1991 fps | 96.9% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 43,671 psi | 82% | 2070 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 96% | 47,747 psi | 90% | 2083 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 94% | 45,687 psi | 86% | 2067 fps | 98.8% |
| Hodgdon H4198 | <<locked>> | 86% | 45,527 psi | 86% | 1952 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,662 psi | 60% | 1194 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 41,843 psi | 79% | 2057 fps | 99.5% |
| IMR 4198 | <<locked>> | 92% | 45,614 psi | 86% | 1985 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 46,079 psi | 87% | 1926 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 47,210 psi | 89% | 2060 fps | 96.8% |
| Lovex D073.4 | <<locked>> | 90% | 47,065 psi | 89% | 2064 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 96% | 46,354 psi | 88% | 2054 fps | 97.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 40,277 psi | 76% | 2024 fps | 97.3% |
| Lovex S053 | <<locked>> | 84% | 47,892 psi | 90% | 1923 fps | 100% |
| Norma 200 | <<locked>> | 90% | 46,238 psi | 87% | 2021 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 43,004 psi | 81% | 2008 fps | 96% |
| Norma 202ᴾ | <<locked>> | 100% | 42,482 psi | 80% | 2024 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,763 psi | 60% | 1227 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 45,426 psi | 86% | 1955 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 47,659 psi | 90% | 2067 fps | 98.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 46,862 psi | 89% | 2051 fps | 98.8% |
| Shooters World AR Plus | <<locked>> | 90% | 47,065 psi | 89% | 2064 fps | 98.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 40,277 psi | 76% | 2024 fps | 97.3% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 45,411 psi | 86% | 1998 fps | 95.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 46,108 psi | 87% | 1785 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 46,978 psi | 89% | 2073 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 47,137 psi | 89% | 2041 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 46,644 psi | 88% | 1991 fps | 98.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 37,304 psi | 70% | 1883 fps | 97.9% |
| Somchem S321 | <<locked>> | 96% | 44,889 psi | 85% | 2057 fps | 96.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 44,860 psi | 85% | 1998 fps | 99.2% |
| Vihtavuori N120 | <<locked>> | 88% | 45,977 psi | 87% | 1952 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 46,688 psi | 88% | 1995 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 45,585 psi | 86% | 1995 fps | 99.9% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 37,710 psi | 71% | 1965 fps | 99.5% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 40,263 psi | 76% | 1972 fps | 98.1% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 47,340 psi | 89% | 2057 fps | 96.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 38,870 psi | 73% | 1969 fps | 97.3% |
| Winchester 748ᴾ | <<locked>> | 100% | 45,600 psi | 86% | 2087 fps | 97.4% |
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% | 40,176 psi | 76% | 1880 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 25,599 psi | 48% | 1699 fps | 96.3% |
| Accurate 2460 | <<locked>> | 84% | 31,024 psi | 59% | 1824 fps | 95% |
| Accurate 2495 | <<locked>> | 86% | 22,350 psi | 42% | 1703 fps | 95.5% |
| Accurate 2520 | <<locked>> | 90% | 32,663 psi | 62% | 1890 fps | 95.1% |
| Accurate 4064 | <<locked>> | 96% | 29,109 psi | 55% | 1857 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 34,737 psi | 66% | 1788 fps | 97.6% |
| Accurate LT-32 | <<locked>> | 80% | 35,114 psi | 66% | 1788 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 35,723 psi | 67% | 1857 fps | 100% |
| ADI AR 2219 | 19.5 gr | 80% | 31,604 psi | 60% | 1834 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 96% | 41,510 psi | 78% | 1982 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 23,757 psi | 45% | 1706 fps | 97.8% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 41,394 psi | 78% | 2047 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,979 psi | 57% | 1791 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 37,130 psi | 70% | 1860 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 32,445 psi | 61% | 1778 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 90% | 37,826 psi | 71% | 1886 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 96% | 38,334 psi | 72% | 1991 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 28,805 psi | 54% | 1778 fps | 95.4% |
| Hodgdon H335 | 20.7 gr | 82% | 31,082 psi | 59% | 1834 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 38,319 psi | 72% | 1850 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,728 psi | 45% | 1073 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 27,412 psi | 52% | 1798 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 32,126 psi | 61% | 1785 fps | 99.6% |
| IMR 4227 | <<locked>> | 80% | 43,598 psi | 82% | 1896 fps | 100% |
| IMR 8208 XBR | <<locked>> | 96% | 41,510 psi | 78% | 1982 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 33,402 psi | 63% | 1864 fps | 95% |
| Lovex D073.5 | 22.8 gr | 90% | 37,840 psi | 71% | 1939 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 94% | 32,866 psi | 62% | 1903 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 42,424 psi | 80% | 1860 fps | 100% |
| Norma 200 | <<locked>> | 80% | 34,040 psi | 64% | 1850 fps | 99.8% |
| Norma 201 | <<locked>> | 98% | 40,219 psi | 76% | 1969 fps | 95.3% |
| Norma 202 | <<locked>> | 90% | 31,357 psi | 59% | 1847 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,482 psi | 44% | 1096 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,062 psi | 81% | 1926 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 34,766 psi | 66% | 1877 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 86% | 31,401 psi | 59% | 1808 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 33,402 psi | 63% | 1864 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 94% | 32,866 psi | 62% | 1903 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 42,482 psi | 80% | 1959 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,755 psi | 75% | 1713 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 31,807 psi | 60% | 1841 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 30,501 psi | 58% | 1785 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 32,343 psi | 61% | 1785 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 29,414 psi | 56% | 1745 fps | 95.5% |
| Somchem S321 | <<locked>> | 92% | 38,856 psi | 73% | 1969 fps | 95.2% |
| Somchem S335 | <<locked>> | 86% | 29,370 psi | 55% | 1752 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 35,940 psi | 68% | 1827 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,877 psi | 55% | 1729 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 25,193 psi | 48% | 1657 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 84% | 23,337 psi | 44% | 1683 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 90% | 29,921 psi | 57% | 1795 fps | 95% |
| Vihtavuori N530 | <<locked>> | 96% | 41,930 psi | 79% | 1985 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 94% | 32,082 psi | 61% | 1854 fps | 95.2% |
| Winchester 748 | <<locked>> | 94% | 37,536 psi | 71% | 1969 fps | 95.2% |
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 55 powders for 7 x 50 R loaded with the .285 | 173gr | Prvi Partizan FMJ BT. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,126 fps; across all powders the maximum-charge window runs from 1,194 fps to 2,126 fps. Accurate 2015 gives the best case fill at 100 %, and 55 of the 55 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 173.0 gr projectile in 0.285" calls for a 1:12.0 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. ADI AR 2219, Hodgdon H335, Lovex D073.5 rank at the top here: for 7 x 50 R with the .285 | 173gr | Prvi Partizan FMJ BT 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.