Load Specifications
Load data in caliber 7 x 50 R with .284 | 145gr | Hasler ARIETE bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-7, ADI AR 2207 and Norma 200.
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>> | 92% | 45,876 psi | 87% | 2093 fps | 99.2% |
| Accurate 2015ᴾ | <<locked>> | 100% | 33,881 psi | 64% | 2001 fps | 96% |
| Accurate LT-30 | <<locked>> | 98% | 46,688 psi | 88% | 2087 fps | 97.2% |
| ADI AR 2205 | <<locked>> | 84% | 47,297 psi | 89% | 2011 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 46,557 psi | 88% | 2169 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 45,818 psi | 87% | 2188 fps | 96.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 32,590 psi | 62% | 2021 fps | 97.8% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 40,553 psi | 77% | 2119 fps | 98.8% |
| Alliant Reloder-7 | <<locked>> | 96% | 45,832 psi | 87% | 2133 fps | 99.6% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 46,833 psi | 88% | 2116 fps | 97.5% |
| Hodgdon H4198 | <<locked>> | 94% | 45,426 psi | 86% | 2080 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,472 psi | 56% | 1257 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 44,454 psi | 84% | 2116 fps | 99.6% |
| IMR 4227 | <<locked>> | 90% | 46,224 psi | 87% | 2080 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 47,485 psi | 90% | 2116 fps | 99.8% |
| Lovex S053 | <<locked>> | 92% | 46,746 psi | 88% | 2077 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 45,643 psi | 86% | 2182 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,674 psi | 54% | 1283 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 47,558 psi | 90% | 2139 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 47,485 psi | 90% | 2116 fps | 99.8% |
| Shooters World SOCOM | <<locked>> | 84% | 47,224 psi | 89% | 2090 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 94% | 45,876 psi | 87% | 1946 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 42,293 psi | 80% | 2116 fps | 97.2% |
| Vihtavuori N110 | <<locked>> | 86% | 46,514 psi | 88% | 2005 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 46,847 psi | 88% | 2133 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 39,392 psi | 74% | 2044 fps | 98.2% |
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% | 30,719 psi | 58% | 1857 fps | 95.9% |
| Accurate 2015 | <<locked>> | 98% | 31,865 psi | 60% | 1965 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 92% | 38,609 psi | 73% | 1972 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 80% | 41,974 psi | 79% | 1946 fps | 100% |
| ADI AR 2207 | 16 gr | 80% | 26,542 psi | 50% | 1847 fps | 98.5% |
| ADI AR 2219 | <<locked>> | 96% | 40,059 psi | 76% | 2103 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 94% | 26,948 psi | 51% | 1896 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 88% | 27,572 psi | 52% | 1886 fps | 95.2% |
| Alliant Reloder-7 | 16.5 gr | 80% | 27,949 psi | 53% | 1834 fps | 95.8% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 36,492 psi | 69% | 1969 fps | 95% |
| Hodgdon H4198 | <<locked>> | 90% | 40,393 psi | 76% | 2008 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,654 psi | 41% | 1122 fps | 100% |
| IMR 4198 | <<locked>> | 82% | 26,484 psi | 50% | 1791 fps | 95.2% |
| IMR 4227 | <<locked>> | 80% | 33,910 psi | 64% | 1900 fps | 99.1% |
| Lovex D060 | <<locked>> | 80% | 42,148 psi | 80% | 2041 fps | 99.3% |
| Lovex S053 | <<locked>> | 80% | 32,996 psi | 62% | 1883 fps | 100% |
| Norma 200 | 17.1 gr | 82% | 25,527 psi | 48% | 1834 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,161 psi | 40% | 1148 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 32,692 psi | 62% | 1919 fps | 98.8% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 42,148 psi | 80% | 2041 fps | 99.3% |
| Shooters World SOCOM | <<locked>> | 80% | 41,263 psi | 78% | 2011 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 31,270 psi | 59% | 1752 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 35,389 psi | 67% | 2001 fps | 95.2% |
| Vihtavuori N110 | <<locked>> | 80% | 38,943 psi | 74% | 1913 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 26,919 psi | 51% | 1827 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 90% | 29,167 psi | 55% | 1867 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 26 powders for 7 x 50 R loaded with the .284 | 145gr | Hasler ARIETE. ADI AR 2219 delivers the highest muzzle velocity at 2,188 fps; across all powders the maximum-charge window runs from 1,257 fps to 2,188 fps. Accurate 2015 gives the best case fill at 100 %, and 26 of the 26 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, ADI AR 2219, Alliant AR-Comp 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. Alliant Reloder-7, ADI AR 2207, Norma 200 rank at the top here: for 7 x 50 R with the .284 | 145gr | Hasler ARIETE 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.