Load Specifications
Load data in caliber 7 x 50 R with .284 | 160gr | Swift A-Frame bullet and 44 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, Hodgdon H335 and ADI AR 2219.
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% | 45,658 psi | 86% | 2028 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,337 psi | 82% | 2073 fps | 99.5% |
| Accurate 2460 | <<locked>> | 98% | 44,860 psi | 85% | 2113 fps | 97.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 35,795 psi | 68% | 2057 fps | 98.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 39,276 psi | 74% | 2080 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 92% | 46,296 psi | 87% | 2028 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 92% | 46,833 psi | 88% | 2031 fps | 97.3% |
| ADI AR 2207 | <<locked>> | 92% | 47,805 psi | 90% | 2100 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 46,006 psi | 87% | 2139 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,379 psi | 76% | 2100 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 47,543 psi | 90% | 2139 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 46,717 psi | 88% | 2070 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 46,673 psi | 88% | 2060 fps | 99.1% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,152 psi | 89% | 2090 fps | 96.2% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 46,006 psi | 87% | 2139 fps | 98.8% |
| Hodgdon H335 | <<locked>> | 94% | 45,121 psi | 85% | 2133 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 90% | 44,831 psi | 85% | 2018 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,488 psi | 59% | 1243 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 34,606 psi | 65% | 2011 fps | 97.2% |
| IMR 4198 | <<locked>> | 96% | 47,195 psi | 89% | 2083 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 46,093 psi | 87% | 2008 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 46,267 psi | 87% | 2129 fps | 97.2% |
| Lovex D073.5 | <<locked>> | 98% | 45,411 psi | 86% | 2119 fps | 96.3% |
| Lovex S053 | <<locked>> | 86% | 47,123 psi | 89% | 1998 fps | 100% |
| Norma 200 | <<locked>> | 92% | 44,846 psi | 85% | 2090 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 38,972 psi | 74% | 2047 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,937 psi | 58% | 1266 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 47,587 psi | 90% | 2064 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,412 psi | 88% | 2126 fps | 97% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,105 psi | 81% | 2077 fps | 97.3% |
| Shooters World AR Plus | <<locked>> | 92% | 46,267 psi | 87% | 2129 fps | 97.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 46,238 psi | 87% | 1867 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 46,195 psi | 87% | 2142 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 45,905 psi | 87% | 2106 fps | 99.4% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,236 psi | 82% | 2021 fps | 97.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 34,635 psi | 65% | 1903 fps | 96% |
| Somchem S321ᴾ | <<locked>> | 100% | 46,470 psi | 88% | 2152 fps | 95.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 40,886 psi | 77% | 2018 fps | 97.7% |
| Vihtavuori N120 | <<locked>> | 90% | 45,455 psi | 86% | 2034 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 45,527 psi | 86% | 2060 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,192 psi | 80% | 2028 fps | 99.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,505 psi | 65% | 1988 fps | 98.3% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,231 psi | 70% | 1995 fps | 96.2% |
| Winchester 748ᴾ | <<locked>> | 100% | 45,600 psi | 86% | 2159 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% | 37,434 psi | 71% | 1913 fps | 99.3% |
| Accurate 2015 | <<locked>> | 84% | 26,774 psi | 51% | 1795 fps | 95.6% |
| Accurate 2460 | <<locked>> | 92% | 37,014 psi | 70% | 1998 fps | 95.7% |
| Accurate 2495 | <<locked>> | 90% | 25,962 psi | 49% | 1870 fps | 95.8% |
| Accurate 2520 | <<locked>> | 98% | 36,666 psi | 69% | 2041 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 32,372 psi | 61% | 1811 fps | 95.7% |
| Accurate LT-32 | <<locked>> | 86% | 38,972 psi | 74% | 1919 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 33,272 psi | 63% | 1900 fps | 100% |
| ADI AR 2219 | 19.8 gr | 82% | 31,256 psi | 59% | 1893 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 22,191 psi | 42% | 1722 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,398 psi | 52% | 1811 fps | 97.1% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,780 psi | 66% | 1896 fps | 99.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,095 psi | 57% | 1801 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 98% | 44,164 psi | 83% | 2051 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 88% | 32,082 psi | 61% | 1909 fps | 95.3% |
| Hodgdon H335 | 22.4 gr | 88% | 36,666 psi | 69% | 2001 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 33,388 psi | 63% | 1837 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,047 psi | 44% | 1106 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 29,182 psi | 55% | 1900 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 30,284 psi | 57% | 1818 fps | 98.6% |
| IMR 4227 | <<locked>> | 80% | 40,669 psi | 77% | 1936 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 37,536 psi | 71% | 2005 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 96% | 42,351 psi | 80% | 2077 fps | 95.6% |
| Lovex S053 | <<locked>> | 80% | 40,045 psi | 76% | 1909 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,154 psi | 59% | 1877 fps | 98.9% |
| Norma 202 | <<locked>> | 96% | 34,563 psi | 65% | 1975 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,742 psi | 43% | 1132 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,987 psi | 76% | 1965 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 38,522 psi | 73% | 2011 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 94% | 36,405 psi | 69% | 1972 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 86% | 37,536 psi | 71% | 2005 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,144 psi | 70% | 1759 fps | 100% |
| SNPE Vectan SP 10 | 21.5 gr | 86% | 35,592 psi | 67% | 1978 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 28,572 psi | 54% | 1811 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 36,158 psi | 68% | 1916 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 32,416 psi | 61% | 1864 fps | 95.3% |
| Somchem S321 | <<locked>> | 98% | 43,526 psi | 82% | 2110 fps | 95.1% |
| Somchem S335 | <<locked>> | 92% | 32,372 psi | 61% | 1877 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 33,504 psi | 63% | 1870 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,919 psi | 51% | 1755 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 84% | 26,585 psi | 50% | 1752 fps | 95% |
| Vihtavuori N135 | <<locked>> | 90% | 25,788 psi | 49% | 1804 fps | 95% |
| Vihtavuori N140 | <<locked>> | 98% | 34,867 psi | 66% | 1952 fps | 95.5% |
| Winchester 748 | <<locked>> | 98% | 42,757 psi | 81% | 2116 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 70 powders for 7 x 50 R loaded with the .284 | 160gr | Swift A-Frame. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,192 fps; across all powders the maximum-charge window runs from 1,243 fps to 2,192 fps. Accurate 2015 gives the best case fill at 100 %, and 70 of the 70 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 56–90 %, 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, Hodgdon H335, ADI AR 2219 rank at the top here: for 7 x 50 R with the .284 | 160gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 4064 burn incompletely and react more sensitively to barrel length and temperature. 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.