Load Specifications
Load data in caliber 7 x 50 R with .284 | 155gr | Geco EXPRESS bullet and 38 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 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>> | 88% | 47,456 psi | 90% | 2083 fps | 99.9% |
| Accurate 2015ᴾ | <<locked>> | 100% | 42,424 psi | 80% | 2096 fps | 99.2% |
| Accurate 2460ᴾ | <<locked>> | 100% | 46,949 psi | 89% | 2175 fps | 97.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 30,501 psi | 58% | 1985 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 92% | 45,063 psi | 85% | 2044 fps | 98.4% |
| Accurate LT-32 | <<locked>> | 92% | 45,614 psi | 86% | 2047 fps | 96.7% |
| ADI AR 2207 | <<locked>> | 92% | 46,412 psi | 88% | 2119 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 47,718 psi | 90% | 2195 fps | 98.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 39,073 psi | 74% | 2113 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 98% | 45,963 psi | 87% | 2156 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 90% | 45,977 psi | 87% | 2096 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 45,861 psi | 87% | 2083 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 98% | 45,788 psi | 86% | 2169 fps | 98.5% |
| Hodgdon H335 | <<locked>> | 98% | 46,644 psi | 88% | 2188 fps | 97.7% |
| Hodgdon H4198 | <<locked>> | 90% | 47,311 psi | 89% | 2083 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,227 psi | 59% | 1260 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 37,275 psi | 70% | 2093 fps | 97.5% |
| IMR 4198 | <<locked>> | 96% | 45,905 psi | 87% | 2103 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 47,485 psi | 90% | 2060 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 45,266 psi | 86% | 2152 fps | 96.6% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 46,920 psi | 89% | 2172 fps | 96.2% |
| Lovex S053 | <<locked>> | 86% | 45,992 psi | 87% | 2021 fps | 100% |
| Norma 200 | <<locked>> | 94% | 46,383 psi | 88% | 2146 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 37,695 psi | 71% | 2060 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,632 psi | 58% | 1286 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 46,963 psi | 89% | 2093 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 45,571 psi | 86% | 2149 fps | 96.4% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 41,742 psi | 79% | 2090 fps | 96.6% |
| Shooters World AR Plus | <<locked>> | 92% | 45,266 psi | 86% | 2152 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 47,630 psi | 90% | 1919 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 47,718 psi | 90% | 2198 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 47,645 psi | 90% | 2162 fps | 99.3% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 41,872 psi | 79% | 2034 fps | 96.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 40,176 psi | 76% | 2037 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 92% | 46,528 psi | 88% | 2083 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 47,224 psi | 89% | 2116 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 40,930 psi | 77% | 2044 fps | 98.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 33,388 psi | 63% | 1998 fps | 97.6% |
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% | 36,405 psi | 69% | 1929 fps | 98.9% |
| Accurate 2015 | <<locked>> | 86% | 27,311 psi | 52% | 1837 fps | 95.4% |
| Accurate 2460 | <<locked>> | 94% | 38,174 psi | 72% | 2051 fps | 95.6% |
| Accurate 2495 | <<locked>> | 94% | 24,889 psi | 47% | 1867 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 31,517 psi | 60% | 1824 fps | 95% |
| Accurate LT-32 | <<locked>> | 88% | 40,553 psi | 77% | 1975 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 32,285 psi | 61% | 1916 fps | 100% |
| ADI AR 2219 | 20.3 gr | 84% | 32,445 psi | 61% | 1949 fps | 95% |
| Alliant AR-Comp | <<locked>> | 82% | 23,032 psi | 44% | 1772 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 26,905 psi | 51% | 1831 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 33,823 psi | 64% | 1913 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 31,169 psi | 59% | 1850 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 88% | 33,750 psi | 64% | 1972 fps | 95.5% |
| Hodgdon H335 | 22.5 gr | 90% | 35,998 psi | 68% | 2021 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 34,824 psi | 66% | 1893 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,843 psi | 43% | 1122 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 31,009 psi | 59% | 1969 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 29,501 psi | 56% | 1834 fps | 98.1% |
| IMR 4227 | <<locked>> | 80% | 39,624 psi | 75% | 1955 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 39,407 psi | 74% | 2067 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 98% | 43,758 psi | 83% | 2129 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 39,030 psi | 74% | 1932 fps | 100% |
| Norma 200 | <<locked>> | 80% | 30,153 psi | 57% | 1890 fps | 98.4% |
| Norma 202 | <<locked>> | 98% | 35,317 psi | 67% | 2018 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,524 psi | 43% | 1148 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 38,856 psi | 73% | 1982 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 39,914 psi | 75% | 2064 fps | 95% |
| Rottweil R 901 | <<locked>> | 96% | 37,144 psi | 70% | 2014 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 88% | 39,407 psi | 74% | 2067 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,738 psi | 69% | 1788 fps | 100% |
| SNPE Vectan SP 10 | 22 gr | 88% | 36,782 psi | 69% | 2034 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 31,372 psi | 59% | 1900 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 36,970 psi | 70% | 1962 fps | 95.2% |
| Somchem S335 | <<locked>> | 94% | 33,446 psi | 63% | 1929 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 32,489 psi | 61% | 1890 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,121 psi | 49% | 1768 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 88% | 29,051 psi | 55% | 1834 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 94% | 28,094 psi | 53% | 1890 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 38 powders for 7 x 50 R loaded with the .284 | 155gr | Geco EXPRESS. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,198 fps; across all powders the maximum-charge window runs from 1,260 fps to 2,198 fps. Accurate 2015 gives the best case fill at 100 %, and 38 of the 38 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 155.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. ADI AR 2219, SNPE Vectan SP 10, Hodgdon H335 rank at the top here: for 7 x 50 R with the .284 | 155gr | Geco EXPRESS 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.