Load Specifications
Load data in caliber 7 x 72 R with .284 | 120gr | Barnes Solid bullet and 20 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Accurate 4064 and SNPE Vectan Tubal 5000.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 36,637 psi | 90% | 2592 fps | 99.6% |
| Accurate 2495 | <<locked>> | 86% | 35,839 psi | 88% | 2671 fps | 99.6% |
| Accurate 2520 | <<locked>> | 84% | 35,737 psi | 88% | 2648 fps | 97% |
| Accurate 4064 | <<locked>> | 92% | 36,550 psi | 90% | 2687 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 84% | 35,273 psi | 87% | 2657 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,417 psi | 82% | 1762 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 34,853 psi | 86% | 2664 fps | 99% |
| Lovex D073.6 | <<locked>> | 86% | 34,969 psi | 86% | 2635 fps | 96.7% |
| Norma 202 | <<locked>> | 86% | 36,506 psi | 90% | 2644 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,533 psi | 83% | 1808 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 35,708 psi | 88% | 2585 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,969 psi | 86% | 2635 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 34,548 psi | 85% | 2510 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 35,882 psi | 88% | 2559 fps | 98.5% |
| Somchem S335 | <<locked>> | 84% | 35,810 psi | 88% | 2559 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 86% | 36,013 psi | 89% | 2562 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 88% | 36,114 psi | 89% | 2638 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 88% | 36,492 psi | 90% | 2621 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 88% | 36,085 psi | 89% | 2638 fps | 97.6% |
| Winchester 748 | <<locked>> | 82% | 36,216 psi | 89% | 2671 fps | 96.1% |
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 2015 | <<locked>> | 80% | 34,403 psi | 85% | 2543 fps | 99.3% |
| Accurate 2495 | <<locked>> | 80% | 29,327 psi | 72% | 2513 fps | 98.3% |
| Accurate 2520 | <<locked>> | 80% | 31,053 psi | 76% | 2533 fps | 95.3% |
| Accurate 4064 | 34.8 gr | 84% | 28,094 psi | 69% | 2474 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 31,009 psi | 76% | 2556 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,526 psi | 60% | 1572 fps | 100% |
| IMR 3031 | 31.7 gr | 80% | 27,166 psi | 67% | 2454 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 82% | 30,487 psi | 75% | 2526 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 29,979 psi | 74% | 2480 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,482 psi | 60% | 1608 fps | 100% |
| Rottweil R 901 | <<locked>> | 80% | 33,591 psi | 83% | 2533 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 30,487 psi | 75% | 2526 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,155 psi | 79% | 2454 fps | 96.4% |
| SNPE Vectan Tubal 5000 | 32 gr | 80% | 25,991 psi | 64% | 2306 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 31,749 psi | 78% | 2464 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 80% | 30,037 psi | 74% | 2421 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 80% | 27,688 psi | 68% | 2431 fps | 97.8% |
| Vihtavuori N140 | <<locked>> | 80% | 28,021 psi | 69% | 2411 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 82% | 29,559 psi | 73% | 2474 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 33,823 psi | 83% | 2612 fps | 95.2% |
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 20 powders for 7 x 72 R loaded with the .284 | 120gr | Barnes Solid. Accurate 4064 delivers the highest muzzle velocity at 2,687 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,687 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 20 of the 20 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 82–90 %, leaving at least 10 % headroom. The 120.0 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 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. IMR 3031, Accurate 4064, SNPE Vectan Tubal 5000 rank at the top here: for 7 x 72 R with the .284 | 120gr | Barnes Solid 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.