Load Specifications
Load data in caliber 7 x 50 R with .283 | 140gr | Rhino Penetrator bullet and 30 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 and ADI AR 2207.
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>> | 90% | 46,615 psi | 88% | 2185 fps | 99.4% |
| Accurate 2015ᴾ | <<locked>> | 100% | 38,043 psi | 72% | 2142 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 96% | 47,413 psi | 90% | 2182 fps | 97.7% |
| ADI AR 2205 | <<locked>> | 82% | 47,427 psi | 90% | 2090 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 47,630 psi | 90% | 2260 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 46,427 psi | 88% | 2287 fps | 97.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 35,853 psi | 68% | 2162 fps | 99% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 44,512 psi | 84% | 2254 fps | 99.4% |
| Alliant Reloder-7 | <<locked>> | 94% | 47,398 psi | 90% | 2231 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 47,514 psi | 90% | 2211 fps | 98% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 44,585 psi | 84% | 2257 fps | 97% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 45,252 psi | 85% | 2274 fps | 96% |
| Hodgdon H4198 | <<locked>> | 92% | 46,615 psi | 88% | 2182 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,429 psi | 57% | 1322 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 47,543 psi | 90% | 2241 fps | 99.9% |
| IMR 4227 | <<locked>> | 88% | 47,036 psi | 89% | 2172 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 47,703 psi | 90% | 2201 fps | 99.9% |
| Lovex S053 | <<locked>> | 90% | 47,805 psi | 90% | 2165 fps | 100% |
| Norma 200 | <<locked>> | 98% | 47,805 psi | 90% | 2283 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,747 psi | 56% | 1352 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 46,064 psi | 87% | 2198 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 47,703 psi | 90% | 2201 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 82% | 47,355 psi | 89% | 2175 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 46,673 psi | 88% | 2024 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 46,137 psi | 87% | 2287 fps | 96.3% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 46,369 psi | 88% | 2257 fps | 98.3% |
| Vihtavuori N110 | <<locked>> | 82% | 45,281 psi | 86% | 2064 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 47,834 psi | 90% | 2221 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 43,511 psi | 82% | 2182 fps | 99.1% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 37,768 psi | 71% | 2096 fps | 97% |
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% | 33,924 psi | 64% | 1985 fps | 97.3% |
| Accurate 2015 | <<locked>> | 94% | 31,778 psi | 60% | 2031 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 88% | 37,434 psi | 71% | 2031 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 80% | 44,382 psi | 84% | 2051 fps | 100% |
| ADI AR 2207 | 17.5 gr | 80% | 29,240 psi | 55% | 1965 fps | 99.3% |
| ADI AR 2219 | 22.3 gr | 92% | 38,493 psi | 73% | 2159 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 90% | 26,556 psi | 50% | 1955 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 84% | 27,485 psi | 52% | 1946 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 80% | 30,893 psi | 58% | 1959 fps | 97.1% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 34,867 psi | 66% | 2014 fps | 95% |
| Hodgdon H322 | <<locked>> | 96% | 39,595 psi | 75% | 2178 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 98% | 42,380 psi | 80% | 2228 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 86% | 38,740 psi | 73% | 2060 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,220 psi | 42% | 1178 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 27,253 psi | 51% | 1877 fps | 95.9% |
| IMR 4227 | <<locked>> | 80% | 37,086 psi | 70% | 2024 fps | 99.6% |
| Lovex D060 | <<locked>> | 80% | 44,628 psi | 84% | 2159 fps | 99.7% |
| Lovex S053 | <<locked>> | 80% | 36,013 psi | 68% | 1998 fps | 100% |
| Norma 200 | 18.3 gr | 80% | 27,166 psi | 51% | 1929 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,828 psi | 41% | 1204 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 35,636 psi | 67% | 2041 fps | 99.4% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 44,628 psi | 84% | 2159 fps | 99.7% |
| Shooters World SOCOM | <<locked>> | 80% | 44,889 psi | 85% | 2142 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 34,084 psi | 64% | 1857 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 43,207 psi | 82% | 2241 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 34,098 psi | 64% | 2054 fps | 95.2% |
| Vihtavuori N110 | <<locked>> | 80% | 42,757 psi | 81% | 2031 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 29,515 psi | 56% | 1942 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 28,703 psi | 54% | 1923 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 96% | 33,620 psi | 64% | 2021 fps | 95.7% |
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 50 powders for 7 x 50 R loaded with the .283 | 140gr | Rhino Penetrator. ADI AR 2219 delivers the highest muzzle velocity at 2,287 fps; across all powders the maximum-charge window runs from 1,322 fps to 2,287 fps. Accurate 2015 gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.283" calls for a 1:10.5 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, Norma 200, ADI AR 2207 rank at the top here: for 7 x 50 R with the .283 | 140gr | Rhino Penetrator they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2495, Accurate 2520, Alliant Power Pro 1200-R burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.