Load Specifications
Load data in caliber 7 x 50 R with .284 | 130gr | NorthFork Bonded Core bullet and 30 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma 200, ADI AR 2207 and Alliant Reloder-7.
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% | 46,717 psi | 88% | 2306 fps | 99.3% |
| Accurate 2015ᴾ | <<locked>> | 100% | 38,522 psi | 73% | 2267 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 96% | 47,601 psi | 90% | 2303 fps | 97.5% |
| ADI AR 2205 | <<locked>> | 82% | 47,253 psi | 89% | 2208 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 45,179 psi | 85% | 2352 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 47,036 psi | 89% | 2418 fps | 97.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 35,752 psi | 68% | 2277 fps | 98.7% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 44,541 psi | 84% | 2379 fps | 99.3% |
| Alliant Reloder-7 | <<locked>> | 94% | 47,776 psi | 90% | 2359 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 98% | 47,776 psi | 90% | 2333 fps | 97.8% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 44,759 psi | 85% | 2382 fps | 96.7% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 45,847 psi | 87% | 2402 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 92% | 46,644 psi | 88% | 2303 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,501 psi | 58% | 1407 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 45,252 psi | 85% | 2333 fps | 99.7% |
| IMR 4227 | <<locked>> | 88% | 47,239 psi | 89% | 2297 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 47,718 psi | 90% | 2326 fps | 99.8% |
| Lovex S053 | <<locked>> | 88% | 45,701 psi | 86% | 2260 fps | 100% |
| Norma 200 | <<locked>> | 98% | 47,819 psi | 90% | 2411 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,791 psi | 56% | 1434 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 45,730 psi | 86% | 2320 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 47,718 psi | 90% | 2326 fps | 99.8% |
| Shooters World SOCOM | <<locked>> | 82% | 47,630 psi | 90% | 2300 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 46,789 psi | 88% | 2146 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 47,007 psi | 89% | 2421 fps | 96.1% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 46,427 psi | 88% | 2382 fps | 98.1% |
| Vihtavuori N110 | <<locked>> | 84% | 47,819 psi | 90% | 2215 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 45,455 psi | 86% | 2316 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 43,569 psi | 82% | 2300 fps | 98.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 37,797 psi | 71% | 2211 fps | 96.7% |
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% | 33,881 psi | 64% | 2093 fps | 97% |
| Accurate 2015 | <<locked>> | 94% | 31,778 psi | 60% | 2139 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 88% | 37,246 psi | 70% | 2139 fps | 95% |
| ADI AR 2205 | <<locked>> | 80% | 44,947 psi | 85% | 2178 fps | 100% |
| ADI AR 2207 | 18.8 gr | 80% | 29,414 psi | 56% | 2077 fps | 99.1% |
| ADI AR 2219 | <<locked>> | 92% | 38,566 psi | 73% | 2277 fps | 95% |
| Alliant AR-Comp | <<locked>> | 90% | 26,687 psi | 50% | 2064 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 86% | 29,211 psi | 55% | 2093 fps | 95.7% |
| Alliant Reloder-7 | 19.5 gr | 80% | 31,241 psi | 59% | 2073 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 37,391 psi | 71% | 2172 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 96% | 39,465 psi | 75% | 2293 fps | 95.3% |
| Hodgdon H335 | <<locked>> | 98% | 43,120 psi | 81% | 2359 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 88% | 41,220 psi | 78% | 2218 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,365 psi | 42% | 1257 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 27,528 psi | 52% | 1985 fps | 95.6% |
| IMR 4227 | <<locked>> | 80% | 36,898 psi | 70% | 2136 fps | 99.5% |
| Lovex D060 | <<locked>> | 80% | 44,817 psi | 85% | 2283 fps | 99.6% |
| Lovex S053 | <<locked>> | 80% | 36,376 psi | 69% | 2119 fps | 100% |
| Norma 200 | 19.7 gr | 80% | 27,499 psi | 52% | 2041 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,930 psi | 41% | 1283 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 36,071 psi | 68% | 2162 fps | 99.3% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 44,817 psi | 85% | 2283 fps | 99.6% |
| Shooters World SOCOM | <<locked>> | 80% | 44,788 psi | 85% | 2260 fps | 99.8% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 33,997 psi | 64% | 1965 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 43,656 psi | 82% | 2369 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 36,579 psi | 69% | 2215 fps | 95.7% |
| Vihtavuori N110 | <<locked>> | 80% | 42,395 psi | 80% | 2146 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 29,675 psi | 56% | 2054 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 86% | 28,790 psi | 54% | 2028 fps | 95% |
| Vihtavuori N133 | <<locked>> | 96% | 33,518 psi | 63% | 2129 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 30 powders for 7 x 50 R loaded with the .284 | 130gr | NorthFork Bonded Core. SNPE Vectan SP 10 delivers the highest muzzle velocity at 2,421 fps; across all powders the maximum-charge window runs from 1,407 fps to 2,421 fps. Accurate 2015 gives the best case fill at 100 %, and 30 of the 30 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 130.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Alliant AR-Comp, Alliant Reloder-10x 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. Norma 200, ADI AR 2207, Alliant Reloder-7 rank at the top here: for 7 x 50 R with the .284 | 130gr | NorthFork Bonded Core they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.