Load Specifications
Load data in caliber 7 x 50 R with .284 | 140gr | Barnes X S 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 Alliant Reloder-10x.
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% | 46,702 psi | 88% | 2162 fps | 99.4% |
| Accurate 2015ᴾ | <<locked>> | 100% | 41,785 psi | 79% | 2172 fps | 98.1% |
| Accurate 2460ᴾ | <<locked>> | 100% | 45,397 psi | 86% | 2238 fps | 95.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 30,893 psi | 58% | 2064 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 94% | 47,123 psi | 89% | 2156 fps | 97.6% |
| ADI AR 2207 | <<locked>> | 92% | 45,368 psi | 86% | 2205 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 46,514 psi | 88% | 2264 fps | 97.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 38,551 psi | 73% | 2185 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 98% | 45,063 psi | 85% | 2238 fps | 99.4% |
| Alliant Reloder-7 | <<locked>> | 92% | 47,776 psi | 90% | 2208 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 47,543 psi | 90% | 2188 fps | 97.9% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 47,747 psi | 90% | 2280 fps | 97.5% |
| Hodgdon H335 | <<locked>> | 98% | 45,585 psi | 86% | 2254 fps | 95.9% |
| Hodgdon H4198 | <<locked>> | 90% | 46,340 psi | 88% | 2156 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,270 psi | 59% | 1319 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 47,776 psi | 90% | 2221 fps | 99.9% |
| IMR 4227 | <<locked>> | 86% | 46,470 psi | 88% | 2142 fps | 100% |
| Lovex S053 | <<locked>> | 86% | 45,934 psi | 87% | 2116 fps | 100% |
| Norma 200 | <<locked>> | 94% | 46,064 psi | 87% | 2231 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,357 psi | 59% | 1355 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 45,992 psi | 87% | 2175 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 46,891 psi | 89% | 2005 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 46,456 psi | 88% | 2267 fps | 96.2% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 46,340 psi | 88% | 2234 fps | 98.2% |
| Vihtavuori N120 | <<locked>> | 92% | 45,426 psi | 86% | 2169 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 46,195 psi | 87% | 2195 fps | 99.3% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 40,292 psi | 76% | 2113 fps | 97.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 33,388 psi | 63% | 2067 fps | 95.9% |
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% | 36,318 psi | 69% | 2001 fps | 97.7% |
| Accurate 2015 | <<locked>> | 90% | 31,241 psi | 59% | 1985 fps | 95.2% |
| Accurate 2460 | <<locked>> | 98% | 43,221 psi | 82% | 2205 fps | 95.1% |
| Accurate 2495 | <<locked>> | 98% | 28,950 psi | 55% | 2024 fps | 95% |
| Accurate LT-30 | <<locked>> | 86% | 37,608 psi | 71% | 2008 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 32,285 psi | 61% | 1995 fps | 99.7% |
| ADI AR 2219 | 21.6 gr | 90% | 38,508 psi | 73% | 2133 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 86% | 26,484 psi | 50% | 1916 fps | 95.4% |
| Alliant Reloder-10x | 17.6 gr | 80% | 27,456 psi | 52% | 1906 fps | 95.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,084 psi | 64% | 1988 fps | 97.8% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 37,115 psi | 70% | 2031 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 94% | 40,016 psi | 76% | 2159 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 96% | 42,917 psi | 81% | 2211 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 84% | 38,827 psi | 73% | 2034 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,554 psi | 44% | 1181 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 29,660 psi | 56% | 1903 fps | 96.7% |
| IMR 4227 | <<locked>> | 80% | 39,102 psi | 74% | 2034 fps | 99.8% |
| Lovex S053 | <<locked>> | 80% | 38,841 psi | 73% | 2014 fps | 100% |
| Norma 200 | 18.2 gr | 80% | 31,053 psi | 59% | 1972 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,308 psi | 44% | 1211 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 38,522 psi | 73% | 2060 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,695 psi | 69% | 1870 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 43,671 psi | 82% | 2224 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 35,172 psi | 66% | 2047 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 32,474 psi | 61% | 1969 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 28,442 psi | 54% | 1880 fps | 95% |
| Vihtavuori N133 | <<locked>> | 92% | 32,721 psi | 62% | 1975 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 98% | 31,763 psi | 60% | 2031 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 28 powders for 7 x 50 R loaded with the .284 | 140gr | Barnes X S. Hodgdon H322 delivers the highest muzzle velocity at 2,280 fps; across all powders the maximum-charge window runs from 1,319 fps to 2,280 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 140.0 gr projectile in 0.284" calls for a 1:10.5 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, Norma 200, Alliant Reloder-10x rank at the top here: for 7 x 50 R with the .284 | 140gr | Barnes X S 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.