Load Specifications
Load data in caliber 7 x 50 R with .284 | 150gr | Barnes X BT bullet and 36 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Hodgdon H322 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>> | 86% | 45,397 psi | 86% | 2060 fps | 99.6% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,265 psi | 82% | 2110 fps | 98.8% |
| Accurate 2460 | <<locked>> | 98% | 45,020 psi | 85% | 2149 fps | 96.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,547 psi | 61% | 2014 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 92% | 45,701 psi | 86% | 2057 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 92% | 46,224 psi | 87% | 2057 fps | 96% |
| ADI AR 2207 | <<locked>> | 92% | 47,210 psi | 89% | 2139 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 45,556 psi | 86% | 2169 fps | 97.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,335 psi | 76% | 2133 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 98% | 47,166 psi | 89% | 2175 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 90% | 47,108 psi | 89% | 2113 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 46,195 psi | 87% | 2090 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 98% | 46,760 psi | 88% | 2185 fps | 98% |
| Hodgdon H335 | <<locked>> | 98% | 47,210 psi | 89% | 2195 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 90% | 47,790 psi | 90% | 2093 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,879 psi | 60% | 1273 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,624 psi | 73% | 2110 fps | 97% |
| IMR 4198 | <<locked>> | 96% | 46,934 psi | 89% | 2126 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 45,847 psi | 87% | 2047 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,079 psi | 87% | 2162 fps | 95.9% |
| Lovex S053 | <<locked>> | 86% | 47,195 psi | 89% | 2044 fps | 100% |
| Norma 200 | <<locked>> | 92% | 45,832 psi | 87% | 2139 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,473 psi | 59% | 1299 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,587 psi | 90% | 2106 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,050 psi | 87% | 2156 fps | 95.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,034 psi | 83% | 2116 fps | 96.3% |
| Shooters World AR Plus | <<locked>> | 92% | 46,079 psi | 87% | 2162 fps | 95.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,137 psi | 87% | 1909 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 45,281 psi | 86% | 2165 fps | 96.7% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 45,339 psi | 86% | 2136 fps | 98.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,062 psi | 81% | 2051 fps | 96% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,162 psi | 78% | 2054 fps | 96.7% |
| Vihtavuori N120 | <<locked>> | 92% | 47,239 psi | 89% | 2100 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 45,861 psi | 87% | 2103 fps | 99.6% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,018 psi | 79% | 2057 fps | 98.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,824 psi | 66% | 2021 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% | 37,956 psi | 72% | 1952 fps | 98.6% |
| Accurate 2015 | <<locked>> | 86% | 29,457 psi | 56% | 1870 fps | 95.4% |
| Accurate 2460 | <<locked>> | 94% | 39,508 psi | 75% | 2067 fps | 95% |
| Accurate 2495 | <<locked>> | 94% | 27,383 psi | 52% | 1909 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 82% | 34,606 psi | 65% | 1877 fps | 95.2% |
| Accurate LT-32 | <<locked>> | 90% | 43,932 psi | 83% | 2024 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 33,823 psi | 64% | 1939 fps | 100% |
| ADI AR 2219 | 20.3 gr | 86% | 35,824 psi | 68% | 2008 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 82% | 24,584 psi | 46% | 1798 fps | 95.3% |
| Alliant Reloder-10x | 17.2 gr | 80% | 28,384 psi | 54% | 1854 fps | 96.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,563 psi | 67% | 1936 fps | 98.7% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 34,243 psi | 65% | 1906 fps | 95.4% |
| Hodgdon H322 | 20.5 gr | 90% | 36,738 psi | 69% | 2024 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 92% | 39,697 psi | 75% | 2080 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 80% | 36,013 psi | 68% | 1909 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,917 psi | 45% | 1138 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 34,519 psi | 65% | 2034 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 30,777 psi | 58% | 1854 fps | 97.8% |
| IMR 4227 | <<locked>> | 80% | 40,625 psi | 77% | 1975 fps | 100% |
| Lovex D073.4 | <<locked>> | 90% | 43,105 psi | 81% | 2119 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 40,277 psi | 76% | 1952 fps | 100% |
| Norma 200 | <<locked>> | 80% | 32,605 psi | 62% | 1923 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,714 psi | 45% | 1165 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,190 psi | 76% | 2005 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 43,758 psi | 83% | 2123 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 96% | 39,378 psi | 74% | 2044 fps | 95% |
| Shooters World AR Plus | <<locked>> | 90% | 43,105 psi | 81% | 2119 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,797 psi | 71% | 1804 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 40,466 psi | 76% | 2093 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 32,430 psi | 61% | 1916 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 40,799 psi | 77% | 2018 fps | 95.4% |
| Somchem S335 | <<locked>> | 94% | 35,099 psi | 66% | 1952 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 33,968 psi | 64% | 1913 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,920 psi | 53% | 1795 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 88% | 30,327 psi | 57% | 1854 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 94% | 29,718 psi | 56% | 1913 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 36 powders for 7 x 50 R loaded with the .284 | 150gr | Barnes X BT. Hodgdon H335 delivers the highest muzzle velocity at 2,195 fps; across all powders the maximum-charge window runs from 1,273 fps to 2,195 fps. Accurate 2015 gives the best case fill at 100 %, and 36 of the 36 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 150.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, 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, Hodgdon H322, Alliant Reloder-10x rank at the top here: for 7 x 50 R with the .284 | 150gr | Barnes X 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.