Load Specifications
Load data in caliber 7 x 72 R with .284 | 162gr | Hornady BTHP 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, Alliant Reloder-17 and Hodgdon Hybrid 100V.
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>> | 82% | 36,724 psi | 90% | 2264 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 34,679 psi | 85% | 2254 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 82% | 34,795 psi | 86% | 2221 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 36,289 psi | 89% | 2290 fps | 98.1% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,637 psi | 90% | 2293 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,534 psi | 88% | 2352 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 35,578 psi | 88% | 2290 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,940 psi | 86% | 2283 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,679 psi | 85% | 1506 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,448 psi | 90% | 2247 fps | 96.7% |
| IMR 4831 | <<locked>> | 94% | 36,245 psi | 89% | 2326 fps | 95.9% |
| Lovex S062 | <<locked>> | 82% | 36,230 psi | 89% | 2257 fps | 98.4% |
| Norma 203B | <<locked>> | 82% | 35,969 psi | 89% | 2283 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 82% | 35,288 psi | 87% | 2290 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,143 psi | 87% | 1545 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 35,650 psi | 88% | 2365 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 86% | 35,476 psi | 87% | 2280 fps | 97.7% |
| Shooters World Precision | <<locked>> | 82% | 36,230 psi | 89% | 2257 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,621 psi | 85% | 2280 fps | 96.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 36,724 psi | 90% | 2205 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 34,563 psi | 85% | 2247 fps | 97.2% |
| Somchem S365 | <<locked>> | 96% | 35,984 psi | 89% | 2369 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 86% | 34,853 psi | 86% | 2231 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 36,492 psi | 90% | 2260 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 33,968 psi | 84% | 2343 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,824 psi | 88% | 2264 fps | 97.4% |
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% | 34,374 psi | 85% | 2221 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 32,532 psi | 80% | 2211 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 32,909 psi | 81% | 2178 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,865 psi | 78% | 2195 fps | 96.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,374 psi | 85% | 2247 fps | 96% |
| Alliant Reloder-17 | 35.4 gr | 84% | 31,444 psi | 77% | 2254 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 30,951 psi | 76% | 2188 fps | 96.6% |
| Hodgdon Hybrid 100V | 34.9 gr | 90% | 30,821 psi | 76% | 2188 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,773 psi | 63% | 1345 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,490 psi | 85% | 2208 fps | 96% |
| IMR 4831 | <<locked>> | 92% | 33,997 psi | 84% | 2280 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 33,968 psi | 84% | 2208 fps | 97.8% |
| Norma 203B | <<locked>> | 80% | 33,750 psi | 83% | 2238 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 33,185 psi | 82% | 2244 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,976 psi | 64% | 1375 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,443 psi | 73% | 2208 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 80% | 29,385 psi | 72% | 2146 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 33,968 psi | 84% | 2208 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,547 psi | 80% | 2234 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,460 psi | 80% | 2123 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 30,385 psi | 75% | 2152 fps | 95.7% |
| Somchem S365 | 34.3 gr | 86% | 26,397 psi | 65% | 2129 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 28,906 psi | 71% | 2103 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 80% | 34,287 psi | 84% | 2215 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 98% | 32,140 psi | 79% | 2300 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,372 psi | 77% | 2165 fps | 95.7% |
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 | 162gr | Hornady BTHP. Somchem S365 delivers the highest muzzle velocity at 2,369 fps; across all powders the maximum-charge window runs from 1,506 fps to 2,369 fps. Hodgdon TrailBoss 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 84–90 %, leaving at least 10 % headroom. The 162.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N555 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, Alliant Reloder-17, Hodgdon Hybrid 100V rank at the top here: for 7 x 72 R with the .284 | 162gr | Hornady BTHP 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.