Load Specifications
Load data in caliber 7 x 50 R with .284 | 150gr | Sierra GameKing bullet and 43 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% | 45,832 psi | 87% | 2133 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,179 psi | 83% | 2188 fps | 99.5% |
| Accurate 2460 | <<locked>> | 98% | 45,730 psi | 86% | 2228 fps | 97.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,053 psi | 61% | 2073 fps | 97.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 41,887 psi | 79% | 2211 fps | 96.3% |
| Accurate LT-30 | <<locked>> | 92% | 46,572 psi | 88% | 2133 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 92% | 47,108 psi | 89% | 2139 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 92% | 47,776 psi | 90% | 2205 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 46,151 psi | 87% | 2244 fps | 98.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,567 psi | 77% | 2205 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 45,223 psi | 85% | 2215 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 90% | 47,181 psi | 89% | 2178 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 47,050 psi | 89% | 2165 fps | 99% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,747 psi | 90% | 2201 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 98% | 47,340 psi | 89% | 2260 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 96% | 45,353 psi | 86% | 2241 fps | 97.6% |
| Hodgdon H4198 | <<locked>> | 88% | 45,484 psi | 86% | 2129 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,328 psi | 59% | 1309 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,682 psi | 73% | 2185 fps | 98% |
| IMR 4198 | <<locked>> | 96% | 47,747 psi | 90% | 2198 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,267 psi | 87% | 2113 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,978 psi | 89% | 2244 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 98% | 45,513 psi | 86% | 2221 fps | 96.1% |
| Lovex S053 | <<locked>> | 86% | 47,268 psi | 89% | 2106 fps | 100% |
| Norma 200 | <<locked>> | 92% | 45,049 psi | 85% | 2195 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,088 psi | 74% | 2149 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,285 psi | 59% | 1345 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 45,469 psi | 86% | 2142 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,963 psi | 89% | 2238 fps | 96.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,439 psi | 82% | 2182 fps | 97.1% |
| Shooters World AR Plus | <<locked>> | 92% | 46,978 psi | 89% | 2244 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,209 psi | 87% | 1965 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 46,064 psi | 87% | 2247 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 46,079 psi | 87% | 2211 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,613 psi | 82% | 2126 fps | 97.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 34,925 psi | 66% | 2001 fps | 95.9% |
| Somchem S321ᴾ | <<locked>> | 100% | 46,949 psi | 89% | 2260 fps | 95.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,568 psi | 79% | 2126 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 90% | 45,571 psi | 86% | 2139 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 46,122 psi | 87% | 2172 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,554 psi | 80% | 2133 fps | 99.1% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,824 psi | 66% | 2090 fps | 98.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,681 psi | 71% | 2100 fps | 96.1% |
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% | 37,565 psi | 71% | 2011 fps | 99.1% |
| Accurate 2015 | <<locked>> | 84% | 26,745 psi | 51% | 1880 fps | 95.2% |
| Accurate 2460 | <<locked>> | 92% | 37,246 psi | 70% | 2100 fps | 95.5% |
| Accurate 2495 | <<locked>> | 94% | 26,121 psi | 49% | 1952 fps | 95.7% |
| Accurate 2520 | <<locked>> | 98% | 39,262 psi | 74% | 2172 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 32,460 psi | 61% | 1903 fps | 95.5% |
| Accurate LT-32 | <<locked>> | 86% | 39,653 psi | 75% | 2028 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 33,576 psi | 63% | 1998 fps | 100% |
| ADI AR 2219 | 21.6 gr | 84% | 33,315 psi | 63% | 2031 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 22,278 psi | 42% | 1804 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,644 psi | 52% | 1906 fps | 96.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,911 psi | 66% | 1991 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,472 psi | 58% | 1896 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 98% | 44,947 psi | 85% | 2162 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 86% | 32,518 psi | 61% | 2014 fps | 95.2% |
| Hodgdon H335 | 24 gr | 90% | 37,333 psi | 71% | 2113 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 35,853 psi | 68% | 1975 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,945 psi | 43% | 1165 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 30,560 psi | 58% | 2024 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 30,284 psi | 57% | 1909 fps | 98.4% |
| IMR 4227 | <<locked>> | 80% | 41,118 psi | 78% | 2044 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 40,625 psi | 77% | 2152 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 96% | 42,641 psi | 81% | 2182 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 40,059 psi | 76% | 2008 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,212 psi | 59% | 1969 fps | 98.7% |
| Norma 202 | <<locked>> | 96% | 34,882 psi | 66% | 2077 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,061 psi | 44% | 1201 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,089 psi | 76% | 2064 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 41,437 psi | 78% | 2159 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 94% | 36,651 psi | 69% | 2070 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 88% | 40,625 psi | 77% | 2152 fps | 95.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,637 psi | 71% | 1857 fps | 100% |
| SNPE Vectan SP 10 | 22.9 gr | 86% | 35,592 psi | 67% | 2077 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,240 psi | 57% | 1939 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 36,361 psi | 69% | 2014 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 32,808 psi | 62% | 1962 fps | 95.1% |
| Somchem S321 | <<locked>> | 98% | 44,106 psi | 83% | 2221 fps | 95% |
| Somchem S335 | <<locked>> | 92% | 32,547 psi | 61% | 1972 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 33,808 psi | 64% | 1972 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,093 psi | 51% | 1847 fps | 96.3% |
| Vihtavuori N133 | <<locked>> | 86% | 28,239 psi | 53% | 1877 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 92% | 27,485 psi | 52% | 1936 fps | 95.5% |
| Vihtavuori N140 | <<locked>> | 98% | 35,491 psi | 67% | 2060 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 43 powders for 7 x 50 R loaded with the .284 | 150gr | Sierra GameKing. Hodgdon H322 delivers the highest muzzle velocity at 2,260 fps; across all powders the maximum-charge window runs from 1,309 fps to 2,260 fps. Accurate 2015 gives the best case fill at 100 %, and 43 of the 43 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 1:12.0 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 150gr | Sierra GameKing 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.