Load Specifications
Load data in caliber 7 x 50 R with .284 | 174gr | Prvi Partizan PSP BT bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, Hodgdon H322 and ADI AR 2219.
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% | 46,963 psi | 89% | 1936 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 45,252 psi | 85% | 1988 fps | 99.9% |
| Accurate 2460 | <<locked>> | 98% | 46,702 psi | 88% | 2028 fps | 98.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,330 psi | 63% | 1900 fps | 98.9% |
| Accurate 2520ᴾ | <<locked>> | 100% | 43,250 psi | 82% | 2021 fps | 97.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 31,169 psi | 59% | 1870 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 92% | 47,485 psi | 90% | 1936 fps | 99.4% |
| Accurate LT-32 | <<locked>> | 90% | 45,440 psi | 86% | 1909 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 90% | 46,383 psi | 88% | 1969 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 47,326 psi | 89% | 2044 fps | 99.4% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 45,136 psi | 85% | 1998 fps | 95.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,568 psi | 79% | 2005 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 47,413 psi | 90% | 2100 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 96% | 45,977 psi | 87% | 2005 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 45,368 psi | 86% | 1942 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 45,092 psi | 85% | 1932 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 98% | 45,905 psi | 87% | 1969 fps | 96.7% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 41,423 psi | 78% | 2005 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 96% | 45,382 psi | 86% | 2021 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 96% | 46,108 psi | 87% | 2037 fps | 98.5% |
| Hodgdon H4198 | <<locked>> | 88% | 46,354 psi | 88% | 1932 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,386 psi | 59% | 1168 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,639 psi | 75% | 1991 fps | 99% |
| IMR 4198 | <<locked>> | 94% | 45,658 psi | 86% | 1955 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 47,137 psi | 89% | 1909 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 45,136 psi | 85% | 1998 fps | 95.9% |
| Lovex D073.4 | <<locked>> | 92% | 47,819 psi | 90% | 2037 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 98% | 46,789 psi | 88% | 2028 fps | 97.3% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 37,710 psi | 71% | 1952 fps | 96.2% |
| Lovex S053 | <<locked>> | 84% | 45,600 psi | 86% | 1870 fps | 100% |
| Norma 200 | <<locked>> | 92% | 46,398 psi | 88% | 1995 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 40,321 psi | 76% | 1965 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,473 psi | 59% | 1201 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 46,586 psi | 88% | 1939 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 45,411 psi | 86% | 2005 fps | 97.5% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,309 psi | 84% | 1985 fps | 98.1% |
| Shooters World AR Plus | <<locked>> | 92% | 47,819 psi | 90% | 2037 fps | 98.1% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 37,710 psi | 71% | 1952 fps | 96.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,905 psi | 89% | 1768 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 47,790 psi | 90% | 2051 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 47,500 psi | 90% | 2011 fps | 99.8% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 44,222 psi | 84% | 1929 fps | 98% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,418 psi | 67% | 1821 fps | 97.1% |
| Somchem S321 | <<locked>> | 98% | 45,368 psi | 86% | 2028 fps | 96.3% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,699 psi | 81% | 1939 fps | 98.6% |
| Vihtavuori N120 | <<locked>> | 90% | 46,586 psi | 88% | 1932 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 47,137 psi | 89% | 1969 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,207 psi | 82% | 1936 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,491 psi | 67% | 1903 fps | 99% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 38,363 psi | 72% | 1913 fps | 97.3% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 45,194 psi | 85% | 1995 fps | 95.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 36,695 psi | 69% | 1903 fps | 96.3% |
| Winchester 748ᴾ | <<locked>> | 100% | 43,236 psi | 82% | 2018 fps | 96.3% |
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% | 38,711 psi | 73% | 1831 fps | 99.7% |
| Accurate 2015 | <<locked>> | 80% | 24,424 psi | 46% | 1647 fps | 95.3% |
| Accurate 2460 | <<locked>> | 88% | 33,649 psi | 64% | 1844 fps | 95.5% |
| Accurate 2495 | <<locked>> | 88% | 22,249 psi | 42% | 1680 fps | 95.1% |
| Accurate 2520 | <<locked>> | 94% | 35,360 psi | 67% | 1906 fps | 95.6% |
| Accurate 4064 | <<locked>> | 98% | 29,022 psi | 55% | 1831 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 33,156 psi | 63% | 1732 fps | 96.8% |
| Accurate LT-32 | <<locked>> | 82% | 35,984 psi | 68% | 1772 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 34,156 psi | 65% | 1808 fps | 100% |
| ADI AR 2219 | 18.5 gr | 80% | 30,313 psi | 57% | 1781 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 98% | 42,206 psi | 80% | 1959 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 22,829 psi | 43% | 1654 fps | 96.9% |
| Alliant Power Pro 1200-R | <<locked>> | 96% | 44,802 psi | 85% | 2064 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 28,616 psi | 54% | 1742 fps | 98.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,766 psi | 68% | 1811 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,850 psi | 58% | 1722 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 40,683 psi | 77% | 1896 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 98% | 38,667 psi | 73% | 1965 fps | 95% |
| Hodgdon H322 | 18.3 gr | 82% | 29,457 psi | 56% | 1762 fps | 95.2% |
| Hodgdon H335 | 20.5 gr | 86% | 33,330 psi | 63% | 1844 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 80% | 36,564 psi | 69% | 1795 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,105 psi | 44% | 1043 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 27,688 psi | 52% | 1772 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 30,806 psi | 58% | 1732 fps | 99.2% |
| IMR 4227 | <<locked>> | 80% | 41,974 psi | 79% | 1847 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 42,206 psi | 80% | 1959 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 84% | 36,347 psi | 69% | 1883 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 92% | 38,334 psi | 72% | 1916 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 98% | 35,665 psi | 67% | 1923 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 40,727 psi | 77% | 1811 fps | 100% |
| Norma 200 | <<locked>> | 80% | 32,169 psi | 61% | 1795 fps | 99.4% |
| Norma 202 | <<locked>> | 94% | 33,605 psi | 63% | 1857 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,858 psi | 43% | 1066 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 41,031 psi | 78% | 1870 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 37,333 psi | 71% | 1890 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 90% | 33,301 psi | 63% | 1818 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 84% | 36,347 psi | 69% | 1883 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 98% | 35,665 psi | 67% | 1923 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,392 psi | 73% | 1673 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 32,242 psi | 61% | 1821 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 29,298 psi | 55% | 1732 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 32,764 psi | 62% | 1762 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 30,023 psi | 57% | 1729 fps | 95.2% |
| Somchem S321 | <<locked>> | 96% | 42,293 psi | 80% | 1988 fps | 95.6% |
| Somchem S335 | <<locked>> | 88% | 29,646 psi | 56% | 1732 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 34,389 psi | 65% | 1778 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,659 psi | 52% | 1677 fps | 97.5% |
| Vihtavuori N133 | <<locked>> | 82% | 25,570 psi | 48% | 1640 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 88% | 25,063 psi | 47% | 1699 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 94% | 32,169 psi | 61% | 1808 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 98% | 42,134 psi | 80% | 1955 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 98% | 34,824 psi | 66% | 1870 fps | 95.7% |
| Winchester 748 | <<locked>> | 98% | 40,422 psi | 76% | 1978 fps | 95.6% |
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 53 powders for 7 x 50 R loaded with the .284 | 174gr | Prvi Partizan PSP BT. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,100 fps; across all powders the maximum-charge window runs from 1,168 fps to 2,100 fps. Accurate 2015 gives the best case fill at 100 %, and 53 of the 53 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 174.0 gr projectile in 0.284" calls for a 1:11.0 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. Hodgdon H335, Hodgdon H322, ADI AR 2219 rank at the top here: for 7 x 50 R with the .284 | 174gr | Prvi Partizan PSP 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.