Load Specifications
Load data in caliber 7 x 72 R with .284 | 130gr | Fox Classic Hunter bullet and 25 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>> | 88% | 36,506 psi | 90% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 36,230 psi | 89% | 2559 fps | 98% |
| Accurate 4064 | <<locked>> | 90% | 36,593 psi | 90% | 2589 fps | 99% |
| Alliant AR-Comp | <<locked>> | 82% | 35,143 psi | 87% | 2552 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,637 psi | 90% | 2582 fps | 96% |
| Bofors RP3 | <<locked>> | 90% | 35,737 psi | 88% | 2575 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 34,534 psi | 85% | 2539 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,721 psi | 83% | 1699 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 35,882 psi | 88% | 2589 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 84% | 34,998 psi | 86% | 2543 fps | 97.7% |
| Norma 201 | <<locked>> | 84% | 36,260 psi | 89% | 2523 fps | 96.3% |
| Norma 202 | <<locked>> | 84% | 36,303 psi | 89% | 2543 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,895 psi | 83% | 1739 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 34,563 psi | 85% | 2602 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 86% | 36,608 psi | 90% | 2523 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 34,998 psi | 86% | 2543 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 36,303 psi | 89% | 2461 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 35,607 psi | 88% | 2461 fps | 99.1% |
| Somchem S335 | <<locked>> | 82% | 35,491 psi | 87% | 2461 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 36,318 psi | 89% | 2470 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 86% | 35,331 psi | 87% | 2526 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 86% | 36,550 psi | 90% | 2530 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 92% | 35,708 psi | 88% | 2526 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 86% | 35,143 psi | 87% | 2513 fps | 98.1% |
| Winchester 748 | <<locked>> | 82% | 35,549 psi | 88% | 2566 fps | 97% |
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% | 27,717 psi | 68% | 2362 fps | 98.8% |
| Accurate 2520 | <<locked>> | 80% | 33,707 psi | 83% | 2503 fps | 97.3% |
| Accurate 4064 | 33.2 gr | 80% | 26,295 psi | 65% | 2333 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 32,909 psi | 81% | 2503 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 34,432 psi | 85% | 2533 fps | 95.2% |
| Bofors RP3 | <<locked>> | 88% | 33,475 psi | 82% | 2523 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,184 psi | 79% | 2484 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,758 psi | 61% | 1516 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 31,241 psi | 77% | 2480 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 30,240 psi | 74% | 2431 fps | 96.1% |
| Norma 201 | <<locked>> | 82% | 34,084 psi | 84% | 2474 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 31,763 psi | 78% | 2438 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,743 psi | 61% | 1549 fps | 100% |
| ReloadSwiss RS 60 | 39.1 gr | 88% | 32,343 psi | 80% | 2539 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 84% | 34,403 psi | 85% | 2474 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,240 psi | 74% | 2431 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,808 psi | 83% | 2405 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,325 psi | 67% | 2264 fps | 96.8% |
| Somchem S335 | <<locked>> | 80% | 33,373 psi | 82% | 2415 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 80% | 33,794 psi | 83% | 2418 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 28,689 psi | 71% | 2372 fps | 98.9% |
| Vihtavuori N140 | <<locked>> | 80% | 30,008 psi | 74% | 2379 fps | 97.1% |
| Vihtavuori N150 | 36.9 gr | 88% | 31,212 psi | 77% | 2421 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 28,761 psi | 71% | 2359 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 33,156 psi | 82% | 2507 fps | 96.1% |
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 25 powders for 7 x 72 R loaded with the .284 | 130gr | Fox Classic Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,602 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,602 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 25 of the 25 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 130.0 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, Accurate 4064, Vihtavuori N150 rank at the top here: for 7 x 72 R with the .284 | 130gr | 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.