Load Specifications
Load data in caliber 7 x 72 R with .284 | 145gr | Fox Classic Hunter bullet and 30 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 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>> | 86% | 36,347 psi | 90% | 2411 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 36,608 psi | 90% | 2444 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 36,564 psi | 90% | 2438 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,332 psi | 89% | 2497 fps | 96% |
| Bofors RP3 | <<locked>> | 88% | 35,476 psi | 87% | 2428 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 36,680 psi | 90% | 2444 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 35,157 psi | 87% | 2434 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,895 psi | 83% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,839 psi | 88% | 2385 fps | 96.2% |
| IMR 3031 | <<locked>> | 82% | 35,665 psi | 88% | 2434 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 82% | 34,534 psi | 85% | 2392 fps | 98.4% |
| Lovex S062 | <<locked>> | 86% | 36,651 psi | 90% | 2405 fps | 97.5% |
| Norma 201 | <<locked>> | 82% | 35,940 psi | 89% | 2375 fps | 97.2% |
| Norma 202 | <<locked>> | 82% | 36,085 psi | 89% | 2395 fps | 99.2% |
| Norma 203B | <<locked>> | 86% | 36,318 psi | 89% | 2431 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,185 psi | 84% | 1631 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 36,506 psi | 90% | 2516 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 84% | 36,303 psi | 89% | 2375 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 90% | 35,694 psi | 88% | 2425 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 34,534 psi | 85% | 2392 fps | 98.4% |
| Shooters World Precision | <<locked>> | 86% | 36,651 psi | 90% | 2405 fps | 97.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 34,969 psi | 86% | 2310 fps | 99.5% |
| Somchem S355 | <<locked>> | 88% | 34,708 psi | 85% | 2388 fps | 96% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,201 psi | 89% | 2507 fps | 97.7% |
| Vihtavuori N135 | <<locked>> | 84% | 35,143 psi | 87% | 2375 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 36,405 psi | 90% | 2382 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 90% | 35,375 psi | 87% | 2379 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 84% | 34,911 psi | 86% | 2369 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,651 psi | 90% | 2405 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,316 psi | 85% | 2382 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% | 29,588 psi | 73% | 2270 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 28,050 psi | 69% | 2247 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 32,039 psi | 79% | 2336 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,142 psi | 84% | 2444 fps | 95.1% |
| Bofors RP3 | <<locked>> | 84% | 31,009 psi | 76% | 2329 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,069 psi | 84% | 2388 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 32,982 psi | 81% | 2385 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,179 psi | 62% | 1424 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,620 psi | 83% | 2336 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 33,315 psi | 82% | 2385 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 32,285 psi | 80% | 2343 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 30,168 psi | 74% | 2257 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 33,692 psi | 83% | 2326 fps | 96.5% |
| Norma 202 | <<locked>> | 80% | 33,779 psi | 83% | 2346 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 34,069 psi | 84% | 2382 fps | 95.2% |
| ReloadSwiss RS 14 | 11.2 gr | 80% | 25,222 psi | 62% | 1457 fps | 100% |
| ReloadSwiss RS 60 | 35.9 gr | 84% | 29,878 psi | 74% | 2343 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 31,908 psi | 79% | 2277 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 86% | 31,241 psi | 77% | 2326 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,285 psi | 80% | 2343 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 30,168 psi | 74% | 2257 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,892 psi | 71% | 2175 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 32,532 psi | 80% | 2339 fps | 95.2% |
| Somchem S365 | <<locked>> | 94% | 29,965 psi | 74% | 2349 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 30,618 psi | 75% | 2280 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 31,720 psi | 78% | 2283 fps | 98.5% |
| Vihtavuori N150 | 33.9 gr | 84% | 29,022 psi | 71% | 2234 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 30,487 psi | 75% | 2267 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,272 psi | 84% | 2349 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,198 psi | 79% | 2333 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 30 powders for 7 x 72 R loaded with the .284 | 145gr | Fox Classic Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,516 fps; across all powders the maximum-charge window runs from 1,591 fps to 2,516 fps. Hodgdon TrailBoss 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 (280 MPa), the top charges use 83–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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, ReloadSwiss RS 14 rank at the top here: for 7 x 72 R with the .284 | 145gr | Fox Classic Hunter 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.