Load Specifications
Load data in caliber 7 x 72 R with .284 | 150gr | Brenneke TOG bullet and 21 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 Vihtavuori N150.
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% | 34,867 psi | 86% | 2369 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 36,274 psi | 89% | 2402 fps | 97.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,651 psi | 90% | 2408 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,911 psi | 88% | 2470 fps | 96.9% |
| Bofors RP3 | <<locked>> | 84% | 35,679 psi | 88% | 2402 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,157 psi | 87% | 2395 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,795 psi | 86% | 1598 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 36,419 psi | 90% | 2359 fps | 96.2% |
| Lovex S062 | <<locked>> | 82% | 36,405 psi | 90% | 2372 fps | 98.1% |
| Norma 203B | <<locked>> | 82% | 36,042 psi | 89% | 2398 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 82% | 35,491 psi | 87% | 2405 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,201 psi | 87% | 1637 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 35,897 psi | 88% | 2484 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 86% | 35,839 psi | 88% | 2398 fps | 97.4% |
| Shooters World Precision | <<locked>> | 82% | 36,405 psi | 90% | 2372 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,867 psi | 86% | 2398 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 36,651 psi | 90% | 2316 fps | 99.9% |
| Somchem S355 | <<locked>> | 84% | 34,592 psi | 85% | 2356 fps | 96.7% |
| Somchem S365 | <<locked>> | 96% | 36,187 psi | 89% | 2487 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 90% | 35,447 psi | 87% | 2359 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,897 psi | 88% | 2375 fps | 97% |
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% | 32,590 psi | 80% | 2323 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,879 psi | 79% | 2303 fps | 96.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,534 psi | 85% | 2362 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,575 psi | 78% | 2362 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 31,314 psi | 77% | 2303 fps | 96.2% |
| Hodgdon Hybrid 100V | 37.4 gr | 90% | 30,995 psi | 76% | 2297 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 64% | 1427 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,258 psi | 84% | 2313 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 34,069 psi | 84% | 2323 fps | 97.4% |
| Norma 203B | <<locked>> | 80% | 33,939 psi | 84% | 2352 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 33,228 psi | 82% | 2352 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 64% | 1460 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,530 psi | 73% | 2316 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 80% | 29,356 psi | 72% | 2247 fps | 95% |
| Shooters World Precision | <<locked>> | 80% | 34,069 psi | 84% | 2323 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,634 psi | 80% | 2346 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,445 psi | 80% | 2231 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 30,458 psi | 75% | 2260 fps | 95.2% |
| Somchem S365 | 37.6 gr | 88% | 28,253 psi | 70% | 2283 fps | 95.4% |
| Vihtavuori N150 | 33.2 gr | 82% | 27,543 psi | 68% | 2172 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,662 psi | 78% | 2274 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 45 powders for 7 x 72 R loaded with the .284 | 150gr | Brenneke TOG. Alliant Reloder-26 delivers the highest muzzle velocity at 2,507 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,507 fps. Accurate 3100 gives the best case fill at 100 %, and 45 of the 45 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 150.0 gr projectile in 0.284" calls for a 1:11.5 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, Vihtavuori N150 rank at the top here: for 7 x 72 R with the .284 | 150gr | Brenneke TOG they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, Accurate 4350, Alliant Reloder-26 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.