Load Specifications
Load data in caliber 7 x 50 R with .284 | 160gr | Winchester FailSafe 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% | 45,527 psi | 86% | 2028 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,816 psi | 83% | 2080 fps | 99.5% |
| Accurate 2460 | <<locked>> | 98% | 45,324 psi | 86% | 2119 fps | 97.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 31,821 psi | 60% | 1978 fps | 98% |
| Accurate 2520ᴾ | <<locked>> | 100% | 41,756 psi | 79% | 2110 fps | 96.5% |
| Accurate LT-30 | <<locked>> | 92% | 46,151 psi | 87% | 2028 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 92% | 46,702 psi | 88% | 2031 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 92% | 47,747 psi | 90% | 2100 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 45,905 psi | 87% | 2136 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,277 psi | 76% | 2100 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 47,384 psi | 90% | 2136 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 47,210 psi | 89% | 2077 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 47,094 psi | 89% | 2064 fps | 99.1% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 46,992 psi | 89% | 2090 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 98% | 47,094 psi | 89% | 2152 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 96% | 44,947 psi | 85% | 2133 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 88% | 45,368 psi | 86% | 2024 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,444 psi | 59% | 1243 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,406 psi | 73% | 2080 fps | 98.2% |
| IMR 4198 | <<locked>> | 96% | 47,065 psi | 89% | 2083 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,006 psi | 87% | 2008 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,775 psi | 88% | 2136 fps | 97.3% |
| Lovex D073.5 | <<locked>> | 98% | 45,266 psi | 86% | 2116 fps | 96.3% |
| Lovex S053 | <<locked>> | 86% | 47,094 psi | 89% | 1998 fps | 100% |
| Norma 200 | <<locked>> | 94% | 47,834 psi | 90% | 2126 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 38,870 psi | 73% | 2047 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,893 psi | 58% | 1266 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 45,049 psi | 85% | 2031 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,934 psi | 89% | 2133 fps | 97.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,033 psi | 81% | 2073 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 92% | 46,775 psi | 88% | 2136 fps | 97.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,166 psi | 87% | 1867 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 46,079 psi | 87% | 2142 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 45,803 psi | 87% | 2103 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,076 psi | 81% | 2021 fps | 97.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 34,577 psi | 65% | 1903 fps | 96% |
| Somchem S321ᴾ | <<locked>> | 100% | 46,992 psi | 89% | 2159 fps | 95.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,379 psi | 78% | 2024 fps | 97.8% |
| Vihtavuori N120 | <<locked>> | 92% | 47,863 psi | 90% | 2060 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 46,035 psi | 87% | 2067 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,090 psi | 80% | 2028 fps | 99.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,447 psi | 65% | 1988 fps | 98.3% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,086 psi | 70% | 1991 fps | 96.2% |
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% | 37,318 psi | 70% | 1913 fps | 99.2% |
| Accurate 2015 | <<locked>> | 84% | 26,745 psi | 51% | 1791 fps | 95.6% |
| Accurate 2460 | <<locked>> | 92% | 36,898 psi | 70% | 1998 fps | 95.7% |
| Accurate 2495 | <<locked>> | 92% | 24,163 psi | 46% | 1821 fps | 95.2% |
| Accurate 2520 | <<locked>> | 96% | 36,318 psi | 69% | 2024 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 32,271 psi | 61% | 1811 fps | 95.7% |
| Accurate LT-32 | <<locked>> | 86% | 39,378 psi | 74% | 1926 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 33,243 psi | 63% | 1896 fps | 100% |
| ADI AR 2219 | 19.8 gr | 82% | 31,212 psi | 59% | 1893 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 22,162 psi | 42% | 1722 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,746 psi | 52% | 1821 fps | 97.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,751 psi | 66% | 1896 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,081 psi | 57% | 1801 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 98% | 44,657 psi | 84% | 2057 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 86% | 32,445 psi | 61% | 1919 fps | 95.5% |
| Hodgdon H335 | 22 gr | 88% | 34,708 psi | 66% | 1969 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 35,665 psi | 67% | 1877 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,018 psi | 43% | 1106 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 30,298 psi | 57% | 1926 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 30,226 psi | 57% | 1818 fps | 98.6% |
| IMR 4227 | <<locked>> | 80% | 40,567 psi | 77% | 1936 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 37,985 psi | 72% | 2011 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 96% | 42,264 psi | 80% | 2077 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 39,987 psi | 76% | 1909 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,111 psi | 59% | 1877 fps | 98.9% |
| Norma 202 | <<locked>> | 96% | 34,519 psi | 65% | 1975 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,727 psi | 43% | 1132 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,871 psi | 75% | 1962 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 38,464 psi | 73% | 2011 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 94% | 36,289 psi | 69% | 1969 fps | 95.5% |
| Shooters World AR Plus | <<locked>> | 86% | 37,985 psi | 72% | 2011 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,565 psi | 71% | 1765 fps | 100% |
| SNPE Vectan SP 10 | 21.5 gr | 86% | 35,505 psi | 67% | 1978 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 28,543 psi | 54% | 1811 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 36,027 psi | 68% | 1916 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 32,764 psi | 62% | 1873 fps | 95.4% |
| Somchem S321 | <<locked>> | 98% | 43,976 psi | 83% | 2119 fps | 95.2% |
| Somchem S335 | <<locked>> | 92% | 32,285 psi | 61% | 1877 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 33,446 psi | 63% | 1870 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,890 psi | 51% | 1755 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 84% | 26,556 psi | 50% | 1752 fps | 95% |
| Vihtavuori N135 | <<locked>> | 90% | 25,744 psi | 49% | 1804 fps | 95% |
| Vihtavuori N140 | <<locked>> | 98% | 35,215 psi | 67% | 1959 fps | 95.6% |
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 | 160gr | Winchester FailSafe. Somchem S321 delivers the highest muzzle velocity at 2,159 fps; across all powders the maximum-charge window runs from 1,243 fps to 2,159 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 58–90 %, 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 160gr | Winchester FailSafe 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.