Load Specifications
Load data in caliber 7 x 72 R with .284 | 145gr | Hasler ARIETE bullet and 31 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Accurate 4064 and Vihtavuori N150.
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>> | 86% | 35,360 psi | 87% | 2388 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 36,042 psi | 89% | 2415 fps | 98.6% |
| Accurate 4064 | <<locked>> | 88% | 35,679 psi | 88% | 2418 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 82% | 36,593 psi | 90% | 2421 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,723 psi | 88% | 2411 fps | 96.7% |
| Bofors RP3 | <<locked>> | 88% | 34,679 psi | 85% | 2405 fps | 96.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,824 psi | 88% | 2418 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 82% | 36,129 psi | 89% | 2398 fps | 96.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 36,593 psi | 90% | 2434 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 34,722 psi | 86% | 2418 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,040 psi | 84% | 1585 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 36,216 psi | 89% | 2441 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 84% | 36,361 psi | 90% | 2421 fps | 98.7% |
| Lovex S062 | <<locked>> | 86% | 35,824 psi | 88% | 2379 fps | 97.1% |
| Norma 201 | <<locked>> | 82% | 35,070 psi | 86% | 2349 fps | 96.8% |
| Norma 202 | <<locked>> | 82% | 35,172 psi | 87% | 2369 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,968 psi | 84% | 1621 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,621 psi | 88% | 2484 fps | 98.1% |
| Rottweil R 902 | <<locked>> | 84% | 35,447 psi | 87% | 2349 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 90% | 34,563 psi | 85% | 2395 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 36,361 psi | 90% | 2421 fps | 98.7% |
| Shooters World Precision | <<locked>> | 86% | 35,824 psi | 88% | 2379 fps | 97.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 36,535 psi | 90% | 2333 fps | 99.6% |
| Somchem S335 | <<locked>> | 82% | 36,463 psi | 90% | 2329 fps | 99.5% |
| Somchem S355 | <<locked>> | 90% | 36,245 psi | 89% | 2411 fps | 96.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,331 psi | 87% | 2477 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 82% | 34,925 psi | 86% | 2293 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 86% | 36,622 psi | 90% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 35,056 psi | 86% | 2349 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 94% | 34,563 psi | 85% | 2359 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 84% | 34,606 psi | 85% | 2362 fps | 98.7% |
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% | 28,935 psi | 71% | 2251 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 33,634 psi | 83% | 2365 fps | 98.1% |
| Accurate 4064 | 31.3 gr | 80% | 27,427 psi | 68% | 2228 fps | 97.2% |
| Alliant AR-Comp | <<locked>> | 80% | 34,069 psi | 84% | 2372 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 31,256 psi | 77% | 2310 fps | 95% |
| Bofors RP3 | <<locked>> | 86% | 32,387 psi | 80% | 2352 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,286 psi | 82% | 2362 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 80% | 33,837 psi | 83% | 2349 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 34,563 psi | 85% | 2392 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 32,576 psi | 80% | 2365 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,135 psi | 62% | 1414 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 29,863 psi | 74% | 2300 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 31,444 psi | 77% | 2316 fps | 97.4% |
| Lovex S062 | <<locked>> | 82% | 31,662 psi | 78% | 2287 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 33,112 psi | 82% | 2306 fps | 96.2% |
| Norma 202 | <<locked>> | 80% | 32,924 psi | 81% | 2320 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,193 psi | 62% | 1450 fps | 100% |
| ReloadSwiss RS 60 | 35.2 gr | 84% | 29,298 psi | 72% | 2316 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 31,328 psi | 77% | 2257 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 88% | 32,576 psi | 80% | 2349 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,444 psi | 77% | 2316 fps | 97.4% |
| Shooters World Precision | <<locked>> | 82% | 31,662 psi | 78% | 2287 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,326 psi | 70% | 2156 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 34,447 psi | 85% | 2290 fps | 99.2% |
| Somchem S355 | <<locked>> | 88% | 33,924 psi | 84% | 2362 fps | 95.5% |
| Somchem S365 | <<locked>> | 96% | 31,096 psi | 77% | 2372 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 32,634 psi | 80% | 2244 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,907 psi | 74% | 2257 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 30,661 psi | 76% | 2254 fps | 98.1% |
| Vihtavuori N150 | 33.2 gr | 88% | 28,747 psi | 71% | 2224 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 30,371 psi | 75% | 2267 fps | 97.6% |
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 31 powders for 7 x 72 R loaded with the .284 | 145gr | Hasler ARIETE. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,484 fps; across all powders the maximum-charge window runs from 1,585 fps to 2,484 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 31 of the 31 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 84–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, 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, Accurate 4064, Vihtavuori N150 rank at the top here: for 7 x 72 R with the .284 | 145gr | Hasler ARIETE 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.