Load Specifications
Load data in caliber 7 x 50 R with .284 | 150gr | Prvi Partizan HP BT bullet and 37 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 and Norma 200.
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>> | 88% | 47,108 psi | 89% | 2123 fps | 99.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 41,901 psi | 79% | 2133 fps | 99% |
| Accurate 2460ᴾ | <<locked>> | 100% | 46,122 psi | 87% | 2208 fps | 97.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 29,921 psi | 57% | 2018 fps | 96.8% |
| Accurate LT-30 | <<locked>> | 94% | 47,253 psi | 89% | 2116 fps | 98.5% |
| Accurate LT-32 | <<locked>> | 94% | 47,805 psi | 90% | 2119 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 92% | 46,137 psi | 87% | 2165 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 47,079 psi | 89% | 2231 fps | 98.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 38,609 psi | 73% | 2149 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 98% | 45,527 psi | 86% | 2195 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 90% | 45,136 psi | 85% | 2129 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 45,295 psi | 86% | 2116 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 98% | 45,310 psi | 86% | 2205 fps | 98.2% |
| Hodgdon H335 | <<locked>> | 98% | 45,963 psi | 87% | 2221 fps | 97.3% |
| Hodgdon H4198 | <<locked>> | 90% | 46,456 psi | 88% | 2116 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,908 psi | 58% | 1286 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 36,840 psi | 70% | 2126 fps | 97.1% |
| IMR 4198 | <<locked>> | 96% | 45,687 psi | 86% | 2146 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 46,833 psi | 88% | 2096 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 47,805 psi | 90% | 2228 fps | 96.8% |
| Lovex S053 | <<locked>> | 86% | 46,021 psi | 87% | 2067 fps | 100% |
| Norma 200 | <<locked>> | 94% | 45,905 psi | 87% | 2185 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,835 psi | 58% | 1319 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 46,180 psi | 87% | 2129 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 44,962 psi | 85% | 2182 fps | 96% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 41,249 psi | 78% | 2126 fps | 96.2% |
| Shooters World AR Plus | <<locked>> | 94% | 47,805 psi | 90% | 2228 fps | 96.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 47,152 psi | 89% | 1959 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 47,021 psi | 89% | 2234 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 47,195 psi | 89% | 2201 fps | 99.1% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 41,466 psi | 78% | 2070 fps | 96.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 39,639 psi | 75% | 2073 fps | 96.8% |
| Vihtavuori N110 | <<locked>> | 82% | 47,892 psi | 90% | 2018 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 46,267 psi | 87% | 2126 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 46,731 psi | 88% | 2156 fps | 99.8% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 40,538 psi | 77% | 2080 fps | 98.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 32,996 psi | 62% | 2031 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% | 36,289 psi | 69% | 1969 fps | 98.7% |
| Accurate 2015 | <<locked>> | 86% | 27,180 psi | 51% | 1870 fps | 95% |
| Accurate 2460 | <<locked>> | 94% | 37,681 psi | 71% | 2083 fps | 95.1% |
| Accurate 2495 | <<locked>> | 96% | 26,368 psi | 50% | 1939 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 82% | 33,272 psi | 63% | 1896 fps | 95.3% |
| Accurate LT-32 | <<locked>> | 88% | 40,437 psi | 76% | 2011 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 31,807 psi | 60% | 1949 fps | 99.9% |
| ADI AR 2219 | 21.1 gr | 86% | 33,939 psi | 64% | 2018 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 84% | 23,888 psi | 45% | 1831 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 26,455 psi | 50% | 1860 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 33,359 psi | 63% | 1946 fps | 98.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 32,909 psi | 62% | 1923 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 90% | 35,317 psi | 67% | 2044 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 92% | 37,884 psi | 72% | 2096 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 34,403 psi | 65% | 1923 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,713 psi | 43% | 1145 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 32,764 psi | 62% | 2047 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 29,225 psi | 55% | 1867 fps | 97.8% |
| IMR 4227 | <<locked>> | 80% | 39,218 psi | 74% | 1991 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 41,669 psi | 79% | 2142 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 38,667 psi | 73% | 1969 fps | 100% |
| Norma 200 | 18.6 gr | 80% | 29,675 psi | 56% | 1919 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,365 psi | 42% | 1171 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 38,377 psi | 72% | 2018 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 42,105 psi | 80% | 2142 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 98% | 39,146 psi | 74% | 2090 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 90% | 41,669 psi | 79% | 2142 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,027 psi | 68% | 1818 fps | 100% |
| SNPE Vectan SP 10 | 22.9 gr | 90% | 38,783 psi | 73% | 2110 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 30,850 psi | 58% | 1929 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 39,247 psi | 74% | 2037 fps | 95.6% |
| Somchem S335 | <<locked>> | 96% | 35,302 psi | 67% | 2001 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 80% | 45,252 psi | 85% | 1988 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 32,053 psi | 61% | 1923 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 25,788 psi | 49% | 1795 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 88% | 28,572 psi | 54% | 1860 fps | 95% |
| Vihtavuori N135 | <<locked>> | 94% | 27,862 psi | 53% | 1923 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 37 powders for 7 x 50 R loaded with the .284 | 150gr | Prvi Partizan HP BT. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,234 fps; across all powders the maximum-charge window runs from 1,286 fps to 2,234 fps. Accurate 2015 gives the best case fill at 100 %, and 37 of the 37 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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, SNPE Vectan SP 10, Norma 200 rank at the top here: for 7 x 50 R with the .284 | 150gr | Prvi Partizan HP BT they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.