Load Specifications
Load data in caliber 7 x 50 R with .284 | 160gr | Barnes X S 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 Hodgdon H335.
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% | 45,992 psi | 87% | 1978 fps | 99.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,367 psi | 84% | 2031 fps | 99.2% |
| Accurate 2460 | <<locked>> | 98% | 45,368 psi | 86% | 2060 fps | 96.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,083 psi | 62% | 1939 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 92% | 46,267 psi | 87% | 1972 fps | 98.3% |
| Accurate LT-32 | <<locked>> | 92% | 46,789 psi | 88% | 1975 fps | 96.6% |
| ADI AR 2207 | <<locked>> | 90% | 45,121 psi | 85% | 2018 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 46,064 psi | 87% | 2083 fps | 98.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,770 psi | 77% | 2047 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 45,527 psi | 86% | 2060 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 90% | 47,587 psi | 90% | 2024 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 46,905 psi | 89% | 2011 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 98% | 46,659 psi | 88% | 2090 fps | 98.3% |
| Hodgdon H335 | <<locked>> | 98% | 47,543 psi | 90% | 2110 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 88% | 45,701 psi | 86% | 1975 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,662 psi | 60% | 1207 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,030 psi | 74% | 2028 fps | 97.6% |
| IMR 4198 | <<locked>> | 96% | 47,413 psi | 90% | 2037 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,238 psi | 87% | 1959 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,702 psi | 88% | 2077 fps | 96.5% |
| Lovex S053 | <<locked>> | 86% | 47,601 psi | 90% | 1955 fps | 100% |
| Norma 200 | <<locked>> | 92% | 46,006 psi | 87% | 2044 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,581 psi | 75% | 2001 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,894 psi | 60% | 1243 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,834 psi | 90% | 2014 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,673 psi | 88% | 2073 fps | 96.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,338 psi | 84% | 2031 fps | 96.7% |
| Shooters World AR Plus | <<locked>> | 92% | 46,702 psi | 88% | 2077 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,833 psi | 88% | 1827 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 45,963 psi | 87% | 2083 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 46,035 psi | 87% | 2051 fps | 98.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,439 psi | 82% | 1969 fps | 96.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,698 psi | 79% | 1972 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 90% | 45,121 psi | 85% | 1982 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 46,064 psi | 87% | 2014 fps | 99.7% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,264 psi | 80% | 1975 fps | 98.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,157 psi | 66% | 1939 fps | 97.7% |
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% | 38,159 psi | 72% | 1870 fps | 98.9% |
| Accurate 2015 | <<locked>> | 84% | 28,094 psi | 53% | 1762 fps | 95.3% |
| Accurate 2460 | <<locked>> | 92% | 38,000 psi | 72% | 1955 fps | 95.1% |
| Accurate 2495 | <<locked>> | 92% | 26,295 psi | 50% | 1804 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 33,156 psi | 63% | 1772 fps | 95.2% |
| Accurate LT-32 | <<locked>> | 88% | 42,061 psi | 79% | 1909 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 34,098 psi | 64% | 1857 fps | 100% |
| ADI AR 2219 | 18.9 gr | 84% | 34,011 psi | 64% | 1890 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 23,728 psi | 45% | 1696 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,066 psi | 55% | 1788 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,042 psi | 68% | 1860 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 32,619 psi | 62% | 1795 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 88% | 35,302 psi | 67% | 1913 fps | 95.6% |
| Hodgdon H335 | 21 gr | 90% | 37,623 psi | 71% | 1962 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 36,318 psi | 69% | 1831 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,873 psi | 45% | 1083 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 31,299 psi | 59% | 1883 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 30,821 psi | 58% | 1772 fps | 98.2% |
| IMR 4227 | <<locked>> | 80% | 41,321 psi | 78% | 1896 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 41,249 psi | 78% | 2001 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 40,364 psi | 76% | 1864 fps | 100% |
| Norma 200 | <<locked>> | 80% | 33,054 psi | 62% | 1847 fps | 98.7% |
| Norma 202 | <<locked>> | 98% | 37,130 psi | 70% | 1959 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,743 psi | 45% | 1109 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,654 psi | 77% | 1923 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 41,466 psi | 78% | 2001 fps | 95% |
| Rottweil R 901 | <<locked>> | 94% | 38,043 psi | 72% | 1932 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 88% | 41,249 psi | 78% | 2001 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,072 psi | 72% | 1722 fps | 100% |
| SNPE Vectan SP 10 | 20.5 gr | 88% | 38,305 psi | 72% | 1969 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 31,154 psi | 59% | 1808 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 38,870 psi | 73% | 1903 fps | 95.4% |
| Somchem S335 | <<locked>> | 94% | 35,650 psi | 67% | 1880 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 34,243 psi | 65% | 1831 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,108 psi | 53% | 1722 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 86% | 28,979 psi | 55% | 1745 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 92% | 28,601 psi | 54% | 1808 fps | 95.4% |
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 65 powders for 7 x 50 R loaded with the .284 | 160gr | Barnes X S. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,133 fps; across all powders the maximum-charge window runs from 1,207 fps to 2,133 fps. Accurate 2015 gives the best case fill at 100 %, and 65 of the 65 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 160.0 gr projectile in 0.284" calls for a 1:10.0 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. ADI AR 2219, SNPE Vectan SP 10, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 160gr | Barnes X S they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 4064 burn incompletely and react more sensitively to barrel length and temperature. 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.