Load Specifications
Load data in caliber 7 x 72 R with .284 | 160gr | Norma Tipstrike 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 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% | 34,824 psi | 86% | 2277 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 82% | 35,143 psi | 87% | 2247 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 36,318 psi | 89% | 2310 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,940 psi | 89% | 2382 fps | 97.4% |
| Bofors RP3 | <<locked>> | 84% | 35,911 psi | 88% | 2316 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,085 psi | 86% | 2303 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 35,056 psi | 86% | 2316 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,940 psi | 86% | 1526 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 36,521 psi | 90% | 2270 fps | 96.7% |
| Lovex S062 | <<locked>> | 82% | 36,564 psi | 90% | 2283 fps | 98.4% |
| Norma 203B | <<locked>> | 82% | 36,318 psi | 89% | 2313 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 82% | 35,795 psi | 88% | 2320 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,041 psi | 86% | 1558 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 35,824 psi | 88% | 2388 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 86% | 35,766 psi | 88% | 2306 fps | 97.7% |
| Shooters World Precision | <<locked>> | 82% | 36,564 psi | 90% | 2283 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,853 psi | 86% | 2306 fps | 96.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 34,780 psi | 86% | 2188 fps | 99.9% |
| Somchem S355 | <<locked>> | 84% | 34,577 psi | 85% | 2267 fps | 97.2% |
| Somchem S365 | <<locked>> | 96% | 36,390 psi | 90% | 2398 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 90% | 35,665 psi | 88% | 2270 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 34,330 psi | 85% | 2369 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,882 psi | 88% | 2283 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 4064 | <<locked>> | 80% | 32,663 psi | 80% | 2231 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 33,025 psi | 81% | 2198 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,966 psi | 79% | 2215 fps | 96.8% |
| Alliant Reloder-17 | <<locked>> | 84% | 31,647 psi | 78% | 2277 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 31,299 psi | 77% | 2215 fps | 96.7% |
| Hodgdon Hybrid 100V | 35.5 gr | 90% | 31,024 psi | 76% | 2211 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,967 psi | 81% | 2270 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,846 psi | 64% | 1358 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,198 psi | 79% | 2175 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 34,374 psi | 85% | 2238 fps | 97.9% |
| Norma 203B | <<locked>> | 80% | 34,098 psi | 84% | 2264 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 33,446 psi | 82% | 2267 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,034 psi | 64% | 1391 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,414 psi | 72% | 2228 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 80% | 29,486 psi | 73% | 2165 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 34,374 psi | 85% | 2238 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 32,808 psi | 81% | 2260 fps | 95.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,605 psi | 80% | 2146 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 30,487 psi | 75% | 2172 fps | 95.7% |
| Somchem S365 | 34.9 gr | 86% | 26,614 psi | 66% | 2152 fps | 95% |
| Vihtavuori N150 | 30.8 gr | 80% | 26,063 psi | 64% | 2047 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 98% | 32,271 psi | 79% | 2323 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 31,720 psi | 78% | 2192 fps | 95.8% |
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 | 160gr | Norma Tipstrike. Alliant Reloder-26 delivers the highest muzzle velocity at 2,418 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,418 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 160.0 gr projectile in 0.284" calls for a 1:10.5 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 | 160gr | Norma Tipstrike 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.