Load Specifications
Load data in caliber 7 x 72 R with .284 | 154gr | Hornady SP bullet and 20 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Hodgdon Hybrid 100V and Winchester 6.5 StaBALL.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4064 | <<locked>> | 82% | 34,737 psi | 86% | 2329 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 36,172 psi | 89% | 2359 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,781 psi | 88% | 2431 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 35,650 psi | 88% | 2365 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,954 psi | 86% | 2356 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,853 psi | 86% | 1568 fps | 100% |
| Lovex S062 | <<locked>> | 82% | 36,216 psi | 89% | 2329 fps | 98.1% |
| Norma 203B | <<locked>> | 82% | 36,201 psi | 89% | 2362 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 82% | 35,505 psi | 87% | 2369 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,940 psi | 86% | 1601 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 35,679 psi | 88% | 2441 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 86% | 35,824 psi | 88% | 2362 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 36,216 psi | 89% | 2329 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,867 psi | 86% | 2359 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 36,738 psi | 90% | 2277 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 34,766 psi | 86% | 2323 fps | 97% |
| Somchem S365 | <<locked>> | 96% | 36,361 psi | 90% | 2454 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 86% | 35,186 psi | 87% | 2310 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 36,608 psi | 90% | 2336 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,839 psi | 88% | 2336 fps | 97.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4064 | <<locked>> | 80% | 32,648 psi | 80% | 2283 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,937 psi | 79% | 2267 fps | 96.5% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,589 psi | 78% | 2326 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 31,212 psi | 77% | 2264 fps | 96.4% |
| Hodgdon Hybrid 100V | 36.6 gr | 90% | 30,995 psi | 76% | 2260 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,715 psi | 63% | 1394 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 34,098 psi | 84% | 2283 fps | 97.6% |
| Norma 203B | <<locked>> | 80% | 33,765 psi | 83% | 2310 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 80% | 33,228 psi | 82% | 2316 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,179 psi | 64% | 1434 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,501 psi | 73% | 2280 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 80% | 29,457 psi | 73% | 2215 fps | 95.3% |
| Shooters World Precision | <<locked>> | 80% | 34,098 psi | 84% | 2283 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,605 psi | 80% | 2306 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,430 psi | 80% | 2192 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 30,516 psi | 75% | 2224 fps | 95.4% |
| Somchem S365 | 36.8 gr | 88% | 28,224 psi | 70% | 2247 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 28,950 psi | 71% | 2172 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 80% | 34,476 psi | 85% | 2293 fps | 99.3% |
| Winchester 6.5 StaBALL | 38.9 gr | 86% | 31,546 psi | 78% | 2238 fps | 95.5% |
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 20 powders for 7 x 72 R loaded with the .284 | 154gr | Hornady SP. Somchem S365 delivers the highest muzzle velocity at 2,454 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,454 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 20 of the 20 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 86–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Somchem S365, Hodgdon Hybrid 100V, Winchester 6.5 StaBALL rank at the top here: for 7 x 72 R with the .284 | 154gr | Hornady SP 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.