Load Specifications
Load data in caliber 7 x 50 R with .284 | 160gr | Sierra SBT GameKing bullet and 46 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H335, SNPE Vectan SP 10 and Shooters World AR Plus.
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% | 46,369 psi | 88% | 2051 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,686 psi | 84% | 2103 fps | 99.7% |
| Accurate 2460 | <<locked>> | 98% | 46,630 psi | 88% | 2149 fps | 98.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 33,083 psi | 62% | 2011 fps | 98.5% |
| Accurate 2520ᴾ | <<locked>> | 100% | 40,857 psi | 77% | 2119 fps | 96.5% |
| Accurate 2520ᴾ | <<locked>> | 100% | 40,857 psi | 77% | 2119 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 92% | 47,007 psi | 89% | 2051 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 92% | 47,543 psi | 90% | 2057 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 90% | 46,282 psi | 87% | 2093 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 47,195 psi | 89% | 2169 fps | 99.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,510 psi | 78% | 2129 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 96% | 45,861 psi | 87% | 2129 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 45,194 psi | 85% | 2064 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 44,831 psi | 85% | 2051 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 98% | 45,266 psi | 86% | 2080 fps | 96.1% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 47,195 psi | 89% | 2169 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 94% | 46,151 psi | 87% | 2162 fps | 98.2% |
| Hodgdon H4198 | <<locked>> | 90% | 46,296 psi | 87% | 2051 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,618 psi | 60% | 1253 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 35,636 psi | 67% | 2047 fps | 97.8% |
| IMR 4198 | <<locked>> | 94% | 45,658 psi | 86% | 2080 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,557 psi | 88% | 2028 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 47,558 psi | 90% | 2162 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 98% | 46,557 psi | 88% | 2149 fps | 96.8% |
| Lovex S053 | <<locked>> | 84% | 45,818 psi | 87% | 1995 fps | 100% |
| Norma 200 | <<locked>> | 92% | 46,383 psi | 88% | 2119 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 40,059 psi | 76% | 2080 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,096 psi | 59% | 1280 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 46,137 psi | 87% | 2057 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 45,165 psi | 85% | 2123 fps | 97% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,367 psi | 84% | 2106 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 92% | 47,558 psi | 90% | 2162 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,818 psi | 88% | 1883 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 47,369 psi | 89% | 2172 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 47,413 psi | 90% | 2136 fps | 99.6% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 44,396 psi | 84% | 2051 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,592 psi | 67% | 1936 fps | 96.6% |
| Somchem S321 | <<locked>> | 98% | 45,092 psi | 85% | 2146 fps | 95.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,554 psi | 80% | 2054 fps | 98.2% |
| Vihtavuori N120 | <<locked>> | 90% | 46,499 psi | 88% | 2057 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 46,847 psi | 88% | 2090 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,366 psi | 82% | 2057 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,563 psi | 67% | 2018 fps | 98.7% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 38,159 psi | 72% | 2024 fps | 96.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 36,724 psi | 69% | 2018 fps | 95.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 47,050 psi | 89% | 2195 fps | 96.7% |
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% | 38,189 psi | 72% | 1936 fps | 99.5% |
| Accurate 2015 | <<locked>> | 82% | 25,773 psi | 49% | 1781 fps | 95.4% |
| Accurate 2460 | <<locked>> | 90% | 35,737 psi | 68% | 1991 fps | 95.6% |
| Accurate 2495 | <<locked>> | 90% | 23,627 psi | 45% | 1814 fps | 95.1% |
| Accurate 2520 | <<locked>> | 96% | 35,708 psi | 67% | 2037 fps | 95% |
| Accurate 2520 | <<locked>> | 96% | 35,708 psi | 67% | 2037 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 33,156 psi | 63% | 1841 fps | 96.3% |
| Accurate LT-32 | <<locked>> | 84% | 37,695 psi | 71% | 1913 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 33,852 psi | 64% | 1919 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 31,952 psi | 60% | 1923 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 22,829 psi | 43% | 1752 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 28,297 psi | 53% | 1841 fps | 97.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,737 psi | 68% | 1923 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,705 psi | 58% | 1824 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 43,091 psi | 81% | 2047 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 86% | 30,719 psi | 58% | 1896 fps | 95.1% |
| Hodgdon H335 | 22.5 gr | 86% | 35,346 psi | 67% | 1995 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 34,258 psi | 65% | 1864 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,351 psi | 44% | 1119 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 28,311 psi | 53% | 1893 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 30,777 psi | 58% | 1841 fps | 98.9% |
| IMR 4227 | <<locked>> | 80% | 41,800 psi | 79% | 1965 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 38,827 psi | 73% | 2037 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 94% | 40,669 psi | 77% | 2067 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 40,698 psi | 77% | 1929 fps | 100% |
| Norma 200 | <<locked>> | 80% | 32,068 psi | 61% | 1903 fps | 99.2% |
| Norma 202 | <<locked>> | 94% | 33,460 psi | 63% | 1969 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,061 psi | 44% | 1145 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 41,002 psi | 77% | 1991 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 37,202 psi | 70% | 2005 fps | 95% |
| Rottweil R 901 | <<locked>> | 92% | 35,360 psi | 67% | 1965 fps | 95.5% |
| Shooters World AR Plus | 22.1 gr | 86% | 38,827 psi | 73% | 2037 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,826 psi | 71% | 1778 fps | 100% |
| SNPE Vectan SP 10 | 21.5 gr | 84% | 34,011 psi | 64% | 1965 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 29,008 psi | 55% | 1834 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 34,911 psi | 66% | 1909 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 31,647 psi | 60% | 1864 fps | 95.3% |
| Somchem S321 | <<locked>> | 96% | 42,206 psi | 80% | 2106 fps | 95.1% |
| Somchem S335 | <<locked>> | 90% | 31,386 psi | 59% | 1873 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 34,084 psi | 64% | 1890 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,369 psi | 52% | 1775 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 84% | 26,905 psi | 51% | 1772 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 90% | 26,397 psi | 50% | 1834 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 96% | 33,997 psi | 64% | 1952 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 98% | 34,490 psi | 65% | 1978 fps | 95% |
| Winchester 748 | <<locked>> | 96% | 41,481 psi | 78% | 2113 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 46 powders for 7 x 50 R loaded with the .284 | 160gr | Sierra SBT GameKing. Winchester 748 delivers the highest muzzle velocity at 2,195 fps; across all powders the maximum-charge window runs from 1,253 fps to 2,195 fps. Accurate 2015 gives the best case fill at 100 %, and 46 of the 46 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 1:11.5 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. Hodgdon H335, SNPE Vectan SP 10, Shooters World AR Plus rank at the top here: for 7 x 50 R with the .284 | 160gr | Sierra SBT GameKing they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss 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.