Load Specifications
Load data in caliber 7 x 50 R with .284 | 120gr | Prvi Partizan HP bullet and 28 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma 200, ADI AR 2207 and ReloadSwiss RS 36.
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>> | 90% | 46,630 psi | 88% | 2428 fps | 99% |
| Accurate 2015ᴾ | <<locked>> | 100% | 37,840 psi | 71% | 2372 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 96% | 47,152 psi | 89% | 2421 fps | 97% |
| ADI AR 2205 | <<locked>> | 82% | 46,934 psi | 89% | 2329 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 47,877 psi | 90% | 2523 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 46,340 psi | 88% | 2533 fps | 96.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 35,491 psi | 67% | 2388 fps | 98.2% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 44,396 psi | 84% | 2503 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 94% | 47,369 psi | 89% | 2480 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 47,805 psi | 90% | 2457 fps | 97.4% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 44,672 psi | 84% | 2507 fps | 96.2% |
| Hodgdon H4198 | <<locked>> | 92% | 46,470 psi | 88% | 2425 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,284 psi | 57% | 1490 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 47,224 psi | 89% | 2490 fps | 99.7% |
| IMR 4227 | <<locked>> | 88% | 46,601 psi | 88% | 2418 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 47,471 psi | 90% | 2451 fps | 99.6% |
| Lovex S053 | <<locked>> | 88% | 45,223 psi | 85% | 2382 fps | 100% |
| Norma 200 | <<locked>> | 98% | 47,442 psi | 90% | 2536 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,994 psi | 57% | 1529 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 45,832 psi | 87% | 2448 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 47,471 psi | 90% | 2451 fps | 99.6% |
| Shooters World SOCOM | <<locked>> | 82% | 47,239 psi | 89% | 2421 fps | 99.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 46,572 psi | 88% | 2267 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 46,224 psi | 87% | 2507 fps | 97.6% |
| Vihtavuori N110 | <<locked>> | 84% | 47,340 psi | 89% | 2339 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 45,281 psi | 86% | 2444 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 43,395 psi | 82% | 2421 fps | 98.5% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 37,666 psi | 71% | 2323 fps | 96.1% |
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% | 33,663 psi | 64% | 2201 fps | 96.4% |
| Accurate 2015 | <<locked>> | 96% | 33,475 psi | 63% | 2287 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 90% | 39,117 psi | 74% | 2287 fps | 95% |
| ADI AR 2205 | <<locked>> | 80% | 44,251 psi | 84% | 2290 fps | 100% |
| ADI AR 2207 | 20 gr | 80% | 29,269 psi | 55% | 2188 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 94% | 40,698 psi | 77% | 2434 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 92% | 28,166 psi | 53% | 2208 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 86% | 29,051 psi | 55% | 2201 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 30,980 psi | 59% | 2182 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 39,218 psi | 74% | 2320 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 98% | 41,626 psi | 79% | 2454 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 90% | 43,352 psi | 82% | 2372 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,205 psi | 42% | 1332 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 28,572 psi | 54% | 2119 fps | 95.5% |
| IMR 4227 | <<locked>> | 80% | 36,941 psi | 70% | 2254 fps | 99.3% |
| Lovex D060 | <<locked>> | 80% | 44,730 psi | 84% | 2408 fps | 99.3% |
| Lovex S053 | <<locked>> | 80% | 35,984 psi | 68% | 2231 fps | 100% |
| Norma 200 | 20.9 gr | 80% | 27,151 psi | 51% | 2139 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,727 psi | 41% | 1358 fps | 100% |
| ReloadSwiss RS 36 | 20.8 gr | 80% | 35,737 psi | 68% | 2274 fps | 99% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 44,730 psi | 84% | 2408 fps | 99.3% |
| Shooters World SOCOM | <<locked>> | 80% | 44,469 psi | 84% | 2379 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 33,678 psi | 64% | 2073 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 38,276 psi | 72% | 2365 fps | 95.7% |
| Vihtavuori N110 | <<locked>> | 80% | 42,206 psi | 80% | 2267 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 29,501 psi | 56% | 2165 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 90% | 31,879 psi | 60% | 2208 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 98% | 35,201 psi | 66% | 2274 fps | 95.3% |
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 28 powders for 7 x 50 R loaded with the .284 | 120gr | Prvi Partizan HP. Norma 200 delivers the highest muzzle velocity at 2,536 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,536 fps. Accurate 2015 gives the best case fill at 100 %, and 28 of the 28 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 120.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Alliant AR-Comp, Alliant Reloder-10x 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. Norma 200, ADI AR 2207, ReloadSwiss RS 36 rank at the top here: for 7 x 50 R with the .284 | 120gr | Prvi Partizan HP 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.