Load Specifications
Load data in caliber 7 x 50 R with .284 | 120gr | Sierra Pro-Hunter bullet and 28 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 and ADI AR 2207.
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% | 47,007 psi | 89% | 2477 fps | 99.5% |
| Accurate 2015ᴾ | <<locked>> | 100% | 41,829 psi | 79% | 2480 fps | 98.1% |
| Accurate 2460ᴾ | <<locked>> | 100% | 46,383 psi | 88% | 2566 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 94% | 47,442 psi | 90% | 2470 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 92% | 45,818 psi | 87% | 2526 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 47,239 psi | 89% | 2595 fps | 97.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 38,812 psi | 73% | 2500 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 98% | 45,295 psi | 86% | 2556 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 92% | 47,674 psi | 90% | 2526 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 44,962 psi | 85% | 2457 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 98% | 45,237 psi | 85% | 2562 fps | 97.1% |
| Hodgdon H335 | <<locked>> | 98% | 46,296 psi | 87% | 2582 fps | 96.2% |
| Hodgdon H4198 | <<locked>> | 90% | 46,615 psi | 88% | 2470 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,821 psi | 58% | 1529 fps | 100% |
| IMR 4198 | <<locked>> | 96% | 45,484 psi | 86% | 2507 fps | 99.8% |
| IMR 4227 | <<locked>> | 86% | 46,949 psi | 89% | 2461 fps | 100% |
| Lovex S053 | <<locked>> | 88% | 47,892 psi | 90% | 2454 fps | 100% |
| Norma 200 | <<locked>> | 94% | 45,701 psi | 86% | 2546 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,560 psi | 58% | 1568 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 46,050 psi | 87% | 2490 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 46,847 psi | 88% | 2300 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 47,369 psi | 89% | 2598 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 46,804 psi | 88% | 2559 fps | 98.3% |
| Vihtavuori N110 | <<locked>> | 82% | 47,427 psi | 90% | 2372 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 46,035 psi | 87% | 2487 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 46,514 psi | 88% | 2510 fps | 99.4% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 40,263 psi | 76% | 2415 fps | 97.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 32,808 psi | 62% | 2349 fps | 95.8% |
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% | 35,810 psi | 68% | 2283 fps | 97.6% |
| Accurate 2015 | <<locked>> | 92% | 32,619 psi | 62% | 2303 fps | 95.7% |
| Accurate 2460 | <<locked>> | 98% | 42,830 psi | 81% | 2510 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 86% | 37,420 psi | 71% | 2297 fps | 95.3% |
| ADI AR 2207 | 21.5 gr | 80% | 31,430 psi | 59% | 2267 fps | 99.5% |
| ADI AR 2219 | 26.8 gr | 90% | 38,798 psi | 73% | 2444 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 88% | 26,818 psi | 51% | 2211 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 82% | 27,862 psi | 53% | 2201 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 33,214 psi | 63% | 2264 fps | 97.6% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 37,362 psi | 71% | 2326 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 92% | 37,536 psi | 71% | 2421 fps | 95% |
| Hodgdon H335 | <<locked>> | 96% | 43,381 psi | 82% | 2533 fps | 95.5% |
| Hodgdon H4198 | <<locked>> | 84% | 38,798 psi | 73% | 2333 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,785 psi | 43% | 1368 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 29,022 psi | 55% | 2169 fps | 96.4% |
| IMR 4227 | <<locked>> | 80% | 39,102 psi | 74% | 2333 fps | 99.8% |
| Lovex S053 | <<locked>> | 80% | 38,392 psi | 73% | 2306 fps | 100% |
| Norma 200 | 22.5 gr | 80% | 29,385 psi | 56% | 2228 fps | 96.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,350 psi | 42% | 1398 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 38,145 psi | 72% | 2356 fps | 99.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 35,839 psi | 68% | 2139 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 43,947 psi | 83% | 2543 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 34,722 psi | 66% | 2336 fps | 95.3% |
| Vihtavuori N110 | <<locked>> | 80% | 44,701 psi | 84% | 2333 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 31,618 psi | 60% | 2241 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 28,979 psi | 55% | 2172 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 92% | 32,082 psi | 61% | 2247 fps | 95% |
| Vihtavuori N135 | <<locked>> | 98% | 31,053 psi | 59% | 2310 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 28 powders for 7 x 50 R loaded with the .284 | 120gr | Sierra Pro-Hunter. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,598 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,598 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 58–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.284" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Alliant AR-Comp 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, Norma 200, ADI AR 2207 rank at the top here: for 7 x 50 R with the .284 | 120gr | Sierra Pro-Hunter 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.