Load Specifications
Load data in caliber 7 x 72 R with .284 | 140gr | Rhino Solid Shank bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Vihtavuori N150 and ReloadSwiss RS 14.
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>> | 82% | 34,911 psi | 86% | 2434 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 35,288 psi | 87% | 2467 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 36,738 psi | 90% | 2497 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 90% | 36,535 psi | 90% | 2566 fps | 96.2% |
| Bofors RP3 | <<locked>> | 86% | 36,347 psi | 90% | 2503 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 35,505 psi | 87% | 2484 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 35,433 psi | 87% | 2500 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,563 psi | 85% | 1657 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 35,868 psi | 88% | 2487 fps | 95.9% |
| Lovex S062 | <<locked>> | 82% | 34,664 psi | 85% | 2418 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,882 psi | 86% | 1699 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 36,564 psi | 90% | 2582 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 36,651 psi | 90% | 2438 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 88% | 36,230 psi | 89% | 2493 fps | 96.8% |
| Shooters World Precision | <<locked>> | 82% | 34,664 psi | 85% | 2418 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 35,259 psi | 87% | 2372 fps | 99.6% |
| Somchem S355 | <<locked>> | 86% | 35,085 psi | 86% | 2451 fps | 96.1% |
| Somchem S365 | <<locked>> | 98% | 36,666 psi | 90% | 2579 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 82% | 35,563 psi | 88% | 2438 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 36,419 psi | 90% | 2438 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 88% | 35,694 psi | 88% | 2441 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 82% | 35,128 psi | 87% | 2428 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 36,738 psi | 90% | 2467 fps | 96.4% |
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% | 32,764 psi | 81% | 2388 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 31,009 psi | 76% | 2369 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 32,343 psi | 80% | 2395 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 88% | 34,258 psi | 84% | 2510 fps | 95.3% |
| Bofors RP3 | <<locked>> | 82% | 31,676 psi | 78% | 2395 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 33,489 psi | 82% | 2434 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,228 psi | 82% | 2448 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 63% | 1476 fps | 100% |
| IMR 4895 | <<locked>> | 80% | 33,562 psi | 83% | 2434 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 32,663 psi | 80% | 2372 fps | 96.2% |
| ReloadSwiss RS 14 | 12 gr | 80% | 25,875 psi | 64% | 1516 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 30,197 psi | 74% | 2408 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 34,563 psi | 85% | 2392 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 84% | 31,836 psi | 78% | 2392 fps | 95.2% |
| Shooters World Precision | <<locked>> | 80% | 32,663 psi | 80% | 2372 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,966 psi | 76% | 2277 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 33,069 psi | 81% | 2405 fps | 95.4% |
| Somchem S365 | 39.8 gr | 92% | 30,414 psi | 75% | 2418 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 33,127 psi | 82% | 2388 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 34,301 psi | 84% | 2395 fps | 99.1% |
| Vihtavuori N150 | 35.3 gr | 82% | 29,327 psi | 72% | 2293 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 32,909 psi | 81% | 2379 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 34,519 psi | 85% | 2415 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 43 powders for 7 x 72 R loaded with the .284 | 140gr | Rhino Solid Shank. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,582 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,582 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 43 of the 43 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 77–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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, Vihtavuori N150, ReloadSwiss RS 14 rank at the top here: for 7 x 72 R with the .284 | 140gr | Rhino Solid Shank they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, ADI AR 2208, Alliant Power Pro 2000-MR 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.