Load Specifications
Load data in caliber 7 x 72 R with .284 | 165gr | Norma Bondstrike bullet and 23 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.
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 4064 | <<locked>> | 82% | 34,824 psi | 86% | 2231 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 82% | 35,128 psi | 87% | 2201 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 36,434 psi | 90% | 2267 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,781 psi | 88% | 2333 fps | 97.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 32,518 psi | 80% | 2260 fps | 96.1% |
| Bofors RP3 | <<locked>> | 84% | 35,766 psi | 88% | 2267 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,867 psi | 86% | 2254 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,925 psi | 86% | 1490 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 36,550 psi | 90% | 2224 fps | 96.8% |
| Lovex S062 | <<locked>> | 82% | 36,289 psi | 89% | 2231 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 36,114 psi | 89% | 2264 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 82% | 35,491 psi | 87% | 2270 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,056 psi | 86% | 1522 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 35,853 psi | 88% | 2346 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 86% | 35,636 psi | 88% | 2257 fps | 97.9% |
| Shooters World Precision | <<locked>> | 82% | 36,289 psi | 89% | 2231 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,795 psi | 86% | 2260 fps | 96.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 34,447 psi | 85% | 2136 fps | 99.9% |
| Somchem S355 | <<locked>> | 86% | 36,680 psi | 90% | 2264 fps | 97.9% |
| Somchem S365 | <<locked>> | 96% | 36,027 psi | 89% | 2346 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 90% | 35,534 psi | 88% | 2224 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 34,272 psi | 84% | 2326 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,882 psi | 88% | 2241 fps | 97.5% |
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% | 32,576 psi | 80% | 2185 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 32,953 psi | 81% | 2156 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,937 psi | 79% | 2172 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,357 psi | 77% | 2228 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 30,589 psi | 75% | 2211 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 31,314 psi | 77% | 2175 fps | 96.9% |
| Hodgdon Hybrid 100V | 34.5 gr | 90% | 30,966 psi | 76% | 2169 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,889 psi | 64% | 1329 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,358 psi | 80% | 2136 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 34,301 psi | 84% | 2192 fps | 98% |
| Norma 203B | <<locked>> | 80% | 33,866 psi | 83% | 2215 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 33,344 psi | 82% | 2221 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,107 psi | 64% | 1362 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,515 psi | 73% | 2188 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 80% | 29,457 psi | 73% | 2123 fps | 95.8% |
| Shooters World Precision | <<locked>> | 80% | 34,301 psi | 84% | 2192 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 30,472 psi | 75% | 2162 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,503 psi | 80% | 2100 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 30,458 psi | 75% | 2129 fps | 95.9% |
| Somchem S365 | 33.9 gr | 86% | 26,556 psi | 65% | 2110 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 25,933 psi | 64% | 2008 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 98% | 32,169 psi | 79% | 2277 fps | 95.2% |
| Winchester 6.5 StaBALL | 35.8 gr | 84% | 29,515 psi | 73% | 2096 fps | 95% |
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 48 powders for 7 x 72 R loaded with the .284 | 165gr | Norma Bondstrike. Alliant Reloder-26 delivers the highest muzzle velocity at 2,369 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,369 fps. Accurate 3100 gives the best case fill at 100 %, and 48 of the 48 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 | 165gr | Norma Bondstrike they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, Alliant Reloder-26, Hodgdon H380 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.