Load Specifications
Load data in caliber 7 x 72 R with .284 | 110gr | Barnes TTSX FB bullet and 18 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 4064, Vihtavuori N135 and Accurate 2495.
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 2015 | <<locked>> | 84% | 36,245 psi | 89% | 2717 fps | 99.2% |
| Accurate 2495 | <<locked>> | 92% | 36,680 psi | 90% | 2795 fps | 99.5% |
| Accurate 4064 | <<locked>> | 94% | 36,637 psi | 90% | 2812 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 86% | 35,882 psi | 88% | 2799 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,982 psi | 81% | 1854 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 36,477 psi | 90% | 2828 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 88% | 35,592 psi | 88% | 2772 fps | 96.1% |
| Norma 202 | <<locked>> | 86% | 34,766 psi | 86% | 2723 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,996 psi | 81% | 1896 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 36,042 psi | 89% | 2717 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 35,592 psi | 88% | 2772 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 34,925 psi | 86% | 2638 fps | 96.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 36,463 psi | 90% | 2690 fps | 98.1% |
| Somchem S335 | <<locked>> | 86% | 36,376 psi | 90% | 2694 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 84% | 34,708 psi | 85% | 2651 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 90% | 35,491 psi | 87% | 2756 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 88% | 35,128 psi | 87% | 2710 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 90% | 35,984 psi | 89% | 2746 fps | 96.8% |
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% | 32,024 psi | 79% | 2615 fps | 98.3% |
| Accurate 2495 | 34.3 gr | 80% | 24,004 psi | 59% | 2454 fps | 95.6% |
| Accurate 4064 | 37.8 gr | 88% | 30,139 psi | 74% | 2648 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 29,211 psi | 72% | 2628 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,149 psi | 59% | 1654 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 27,992 psi | 69% | 2595 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 86% | 33,141 psi | 82% | 2713 fps | 95.3% |
| Norma 202 | <<locked>> | 82% | 30,516 psi | 75% | 2615 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,018 psi | 59% | 1690 fps | 100% |
| Rottweil R 901 | <<locked>> | 80% | 31,720 psi | 78% | 2605 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 33,141 psi | 82% | 2713 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,850 psi | 76% | 2533 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 28,108 psi | 69% | 2477 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 29,994 psi | 74% | 2533 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 30,676 psi | 76% | 2552 fps | 97.8% |
| Vihtavuori N135 | 33.2 gr | 80% | 25,585 psi | 63% | 2487 fps | 96.1% |
| Vihtavuori N140 | <<locked>> | 84% | 30,690 psi | 76% | 2598 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 86% | 31,488 psi | 78% | 2631 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 18 powders for 7 x 72 R loaded with the .284 | 110gr | Barnes TTSX FB. IMR 3031 delivers the highest muzzle velocity at 2,828 fps; across all powders the maximum-charge window runs from 1,854 fps to 2,828 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 18 of the 18 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 81–90 %, leaving at least 10 % headroom. The 110.0 gr projectile in 0.284" calls for a 1:11.0 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. Accurate 4064, Vihtavuori N135, Accurate 2495 rank at the top here: for 7 x 72 R with the .284 | 110gr | Barnes TTSX FB 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.