Load Specifications
Load data in caliber 7 x 72 R with .284 | 175gr | Nosler AccuBond Long Range bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Hodgdon Hybrid 100V and Winchester 6.5 StaBALL.
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 4064 | <<locked>> | 82% | 36,042 psi | 89% | 2178 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 36,056 psi | 89% | 2244 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 82% | 35,810 psi | 88% | 2146 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 34,983 psi | 86% | 2162 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,882 psi | 86% | 2208 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 88% | 36,608 psi | 90% | 2280 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,417 psi | 82% | 2215 fps | 97.2% |
| Bofors RP3 | <<locked>> | 82% | 34,374 psi | 85% | 2169 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,969 psi | 89% | 2208 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,766 psi | 86% | 1434 fps | 100% |
| IMR 4831 | <<locked>> | 92% | 35,172 psi | 87% | 2208 fps | 96.4% |
| Norma URP | <<locked>> | 90% | 34,737 psi | 86% | 2205 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 82% | 36,477 psi | 90% | 2218 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,302 psi | 87% | 1473 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 36,622 psi | 90% | 2287 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,085 psi | 89% | 2260 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 86% | 36,738 psi | 90% | 2205 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,752 psi | 88% | 2208 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 35,389 psi | 87% | 2080 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 35,563 psi | 88% | 2169 fps | 98.1% |
| Somchem S365 | <<locked>> | 94% | 34,998 psi | 86% | 2251 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 86% | 35,969 psi | 89% | 2156 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 90% | 36,521 psi | 90% | 2208 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 90% | 35,476 psi | 87% | 2205 fps | 95.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,418 psi | 87% | 2277 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,738 psi | 90% | 2188 fps | 98.3% |
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 4064 | <<locked>> | 80% | 33,692 psi | 83% | 2133 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 31,560 psi | 78% | 2152 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 33,823 psi | 83% | 2103 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,982 psi | 81% | 2123 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 32,996 psi | 81% | 2165 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 28,442 psi | 70% | 2083 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 29,747 psi | 73% | 2123 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 32,140 psi | 79% | 2119 fps | 97.7% |
| Hodgdon Hybrid 100V | 32.2 gr | 86% | 28,181 psi | 69% | 2034 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 64% | 1280 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 32,938 psi | 81% | 2162 fps | 95.6% |
| Norma URP | <<locked>> | 88% | 32,576 psi | 80% | 2159 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 34,200 psi | 84% | 2172 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,121 psi | 64% | 1309 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 30,255 psi | 75% | 2142 fps | 98.5% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 33,837 psi | 83% | 2215 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,182 psi | 74% | 2070 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,444 psi | 77% | 2116 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,330 psi | 82% | 2044 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 31,386 psi | 77% | 2083 fps | 96.9% |
| Somchem S365 | 32.4 gr | 84% | 25,788 psi | 64% | 2024 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 29,675 psi | 73% | 2028 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 88% | 34,200 psi | 84% | 2159 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 88% | 33,257 psi | 82% | 2162 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 96% | 31,111 psi | 77% | 2182 fps | 95.5% |
| Winchester 6.5 StaBALL | 34.2 gr | 82% | 28,543 psi | 70% | 2011 fps | 95.3% |
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 26 powders for 7 x 72 R loaded with the .284 | 175gr | Nosler AccuBond Long Range. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,287 fps; across all powders the maximum-charge window runs from 1,434 fps to 2,287 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 26 of the 26 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 175.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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. Somchem S365, Hodgdon Hybrid 100V, Winchester 6.5 StaBALL rank at the top here: for 7 x 72 R with the .284 | 175gr | Nosler AccuBond Long Range 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.