Load Specifications
Load data in caliber 7 x 50 R with .284 | 150gr | Sierra MatchKing bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 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% | 45,179 psi | 85% | 2116 fps | 99.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,511 psi | 82% | 2175 fps | 99.3% |
| Accurate 2460 | <<locked>> | 98% | 45,107 psi | 85% | 2215 fps | 97.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 31,430 psi | 59% | 2060 fps | 97.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 41,365 psi | 78% | 2198 fps | 96% |
| Accurate LT-30 | <<locked>> | 92% | 45,905 psi | 87% | 2119 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 92% | 46,369 psi | 88% | 2119 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 92% | 47,558 psi | 90% | 2198 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 45,527 psi | 86% | 2231 fps | 98.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 39,972 psi | 76% | 2192 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 47,427 psi | 90% | 2238 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 46,992 psi | 89% | 2172 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 46,485 psi | 88% | 2152 fps | 98.9% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,123 psi | 89% | 2185 fps | 95.8% |
| Hodgdon H322 | <<locked>> | 98% | 46,731 psi | 88% | 2247 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 98% | 47,703 psi | 90% | 2267 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 88% | 45,310 psi | 86% | 2119 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,241 psi | 59% | 1302 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,174 psi | 72% | 2169 fps | 97.8% |
| IMR 4198 | <<locked>> | 96% | 46,949 psi | 89% | 2182 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 45,353 psi | 86% | 2096 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,238 psi | 87% | 2228 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 98% | 44,962 psi | 85% | 2208 fps | 95.8% |
| Lovex S053 | <<locked>> | 86% | 47,007 psi | 89% | 2096 fps | 100% |
| Norma 200 | <<locked>> | 94% | 47,848 psi | 90% | 2228 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 38,493 psi | 73% | 2136 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,183 psi | 59% | 1339 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,572 psi | 90% | 2162 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,369 psi | 88% | 2224 fps | 96.7% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 42,801 psi | 81% | 2165 fps | 96.9% |
| Shooters World AR Plus | <<locked>> | 92% | 46,238 psi | 87% | 2228 fps | 96.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 45,861 psi | 87% | 1955 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 46,064 psi | 87% | 2238 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 45,934 psi | 87% | 2205 fps | 99.2% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 42,960 psi | 81% | 2110 fps | 96.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 40,944 psi | 77% | 2110 fps | 97.4% |
| Vihtavuori N120 | <<locked>> | 92% | 47,761 psi | 90% | 2159 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 45,426 psi | 86% | 2156 fps | 99.8% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 41,974 psi | 79% | 2119 fps | 99% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,287 psi | 65% | 2073 fps | 97.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,202 psi | 70% | 2083 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% | 37,405 psi | 71% | 2001 fps | 99.1% |
| Accurate 2015 | <<locked>> | 84% | 26,484 psi | 50% | 1870 fps | 95% |
| Accurate 2460 | <<locked>> | 92% | 36,593 psi | 69% | 2083 fps | 95.2% |
| Accurate 2495 | <<locked>> | 94% | 25,904 psi | 49% | 1942 fps | 95.5% |
| Accurate 2520 | <<locked>> | 98% | 38,682 psi | 73% | 2156 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 32,285 psi | 61% | 1896 fps | 95.3% |
| Accurate LT-32 | <<locked>> | 86% | 38,972 psi | 74% | 2008 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 32,822 psi | 62% | 1982 fps | 100% |
| ADI AR 2219 | 21.4 gr | 84% | 33,214 psi | 63% | 2021 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 82% | 23,525 psi | 44% | 1837 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,354 psi | 52% | 1896 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,635 psi | 65% | 1982 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 31,778 psi | 60% | 1919 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 98% | 44,367 psi | 84% | 2146 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 86% | 32,372 psi | 61% | 2005 fps | 95% |
| Hodgdon H335 | 23.7 gr | 90% | 36,811 psi | 70% | 2096 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 35,592 psi | 67% | 1965 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,771 psi | 43% | 1158 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 30,037 psi | 57% | 2005 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 30,037 psi | 57% | 1900 fps | 98.3% |
| IMR 4227 | <<locked>> | 80% | 40,263 psi | 76% | 2024 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 39,958 psi | 75% | 2136 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 96% | 42,061 psi | 79% | 2169 fps | 95.1% |
| Lovex S053 | <<locked>> | 80% | 39,769 psi | 75% | 2001 fps | 100% |
| Norma 200 | <<locked>> | 80% | 30,951 psi | 58% | 1959 fps | 98.6% |
| Norma 202 | <<locked>> | 98% | 36,564 psi | 69% | 2100 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,902 psi | 43% | 1194 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,784 psi | 75% | 2057 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 40,828 psi | 77% | 2139 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 94% | 35,998 psi | 68% | 2054 fps | 95% |
| Shooters World AR Plus | <<locked>> | 88% | 39,958 psi | 75% | 2136 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,246 psi | 70% | 1847 fps | 100% |
| SNPE Vectan SP 10 | 23.2 gr | 88% | 37,753 psi | 71% | 2110 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,052 psi | 57% | 1929 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 38,159 psi | 72% | 2037 fps | 95.6% |
| Somchem S335 | <<locked>> | 92% | 32,387 psi | 61% | 1965 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 33,054 psi | 62% | 1952 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,527 psi | 50% | 1827 fps | 96% |
| Vihtavuori N133 | <<locked>> | 86% | 27,746 psi | 52% | 1860 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 92% | 26,963 psi | 51% | 1916 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 98% | 34,954 psi | 66% | 2044 fps | 95.1% |
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 41 powders for 7 x 50 R loaded with the .284 | 150gr | Sierra MatchKing. Hodgdon H335 delivers the highest muzzle velocity at 2,267 fps; across all powders the maximum-charge window runs from 1,302 fps to 2,267 fps. Accurate 2015 gives the best case fill at 100 %, and 41 of the 41 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 1:11.5 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 150gr | Sierra MatchKing 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.