Load Specifications
Load data in caliber 7 x 72 R with .284 | 139gr | Hornady InterBond bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Vihtavuori N150 and Vihtavuori N135.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 35,404 psi | 87% | 2444 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 35,839 psi | 88% | 2477 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 35,273 psi | 87% | 2461 fps | 96.3% |
| Bofors RP3 | <<locked>> | 86% | 34,360 psi | 85% | 2454 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 36,274 psi | 89% | 2513 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,374 psi | 85% | 1647 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 36,622 psi | 90% | 2510 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 36,608 psi | 90% | 2500 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 82% | 35,781 psi | 88% | 2470 fps | 98.5% |
| Lovex S062 | <<locked>> | 84% | 35,317 psi | 87% | 2428 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,360 psi | 85% | 1680 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 35,012 psi | 86% | 2533 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 82% | 35,157 psi | 87% | 2402 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 88% | 34,519 psi | 85% | 2451 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 35,781 psi | 88% | 2470 fps | 98.5% |
| Shooters World Precision | <<locked>> | 84% | 35,317 psi | 87% | 2428 fps | 96.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 36,042 psi | 89% | 2382 fps | 99.5% |
| Somchem S355 | <<locked>> | 88% | 35,795 psi | 88% | 2461 fps | 96% |
| Somchem S365 | <<locked>> | 98% | 35,114 psi | 86% | 2533 fps | 97% |
| Vihtavuori N135 | <<locked>> | 84% | 36,143 psi | 89% | 2448 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 34,969 psi | 86% | 2405 fps | 99% |
| Vihtavuori N150 | <<locked>> | 90% | 36,274 psi | 89% | 2451 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 84% | 35,911 psi | 88% | 2441 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 35,259 psi | 87% | 2454 fps | 95.9% |
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 2495 | <<locked>> | 80% | 31,140 psi | 77% | 2352 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 29,486 psi | 73% | 2329 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,880 psi | 81% | 2405 fps | 95.5% |
| Bofors RP3 | <<locked>> | 84% | 32,227 psi | 79% | 2405 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,939 psi | 84% | 2461 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,309 psi | 62% | 1467 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 34,301 psi | 84% | 2461 fps | 99.7% |
| IMR 4895 | <<locked>> | 82% | 34,461 psi | 85% | 2451 fps | 95% |
| Lovex D073.6 | <<locked>> | 80% | 33,330 psi | 82% | 2415 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 31,256 psi | 77% | 2333 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,411 psi | 63% | 1499 fps | 100% |
| ReloadSwiss RS 60 | 37 gr | 84% | 30,719 psi | 76% | 2415 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 33,054 psi | 81% | 2352 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 86% | 32,401 psi | 80% | 2402 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,330 psi | 82% | 2415 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 31,256 psi | 77% | 2333 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,820 psi | 73% | 2247 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 33,692 psi | 83% | 2415 fps | 95.2% |
| Somchem S365 | <<locked>> | 94% | 30,966 psi | 76% | 2425 fps | 95.2% |
| Vihtavuori N135 | 31.8 gr | 80% | 31,720 psi | 78% | 2356 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 32,851 psi | 81% | 2359 fps | 98.6% |
| Vihtavuori N150 | 34.9 gr | 84% | 29,863 psi | 74% | 2303 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 31,589 psi | 78% | 2343 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,156 psi | 82% | 2405 fps | 95.1% |
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 24 powders for 7 x 72 R loaded with the .284 | 139gr | Hornady InterBond. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,533 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,533 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 24 of the 24 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 85–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.284" calls for a 1:10.5 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. ReloadSwiss RS 60, Vihtavuori N150, Vihtavuori N135 rank at the top here: for 7 x 72 R with the .284 | 139gr | Hornady InterBond 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.