Load Specifications
Load data in caliber 7 x 72 R with .284 | 160gr | Barnes Solid bullet and 30 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 2495 | <<locked>> | 82% | 34,969 psi | 86% | 2238 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 35,027 psi | 86% | 2267 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 34,461 psi | 85% | 2254 fps | 97.2% |
| Alliant Reloder-15 | <<locked>> | 82% | 35,143 psi | 87% | 2264 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 90% | 36,419 psi | 90% | 2365 fps | 97.1% |
| Bofors RP3 | <<locked>> | 86% | 36,114 psi | 89% | 2303 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 35,462 psi | 87% | 2290 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 35,679 psi | 88% | 2310 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,548 psi | 85% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,230 psi | 87% | 2234 fps | 96.9% |
| IMR 3031 | <<locked>> | 82% | 35,157 psi | 87% | 2280 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 35,955 psi | 89% | 2293 fps | 96.8% |
| Lovex S062 | <<locked>> | 82% | 34,679 psi | 85% | 2224 fps | 97.7% |
| Norma 203B | <<locked>> | 84% | 36,521 psi | 90% | 2297 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 84% | 36,289 psi | 89% | 2310 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,635 psi | 85% | 1532 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 36,042 psi | 89% | 2343 fps | 96.1% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 36,477 psi | 90% | 2382 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 82% | 36,593 psi | 90% | 2241 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 88% | 36,027 psi | 89% | 2293 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 34,679 psi | 85% | 2224 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 35,317 psi | 87% | 2297 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 35,273 psi | 87% | 2178 fps | 99.8% |
| Somchem S355 | <<locked>> | 86% | 35,070 psi | 86% | 2257 fps | 97% |
| Somchem S365 | <<locked>> | 98% | 36,564 psi | 90% | 2382 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 82% | 35,302 psi | 87% | 2234 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 35,810 psi | 88% | 2231 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 92% | 35,723 psi | 88% | 2254 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 35,520 psi | 87% | 2251 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 36,622 psi | 90% | 2277 fps | 97.2% |
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% | 32,663 psi | 80% | 2195 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 30,893 psi | 76% | 2178 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,385 psi | 75% | 2162 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 32,938 psi | 81% | 2215 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 86% | 32,111 psi | 79% | 2264 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 29,486 psi | 73% | 2156 fps | 95.6% |
| Hodgdon Hybrid 100V | 34.6 gr | 92% | 31,430 psi | 77% | 2198 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,357 psi | 77% | 2211 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,715 psi | 63% | 1339 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,301 psi | 82% | 2195 fps | 96.3% |
| IMR 3031 | <<locked>> | 80% | 33,054 psi | 81% | 2238 fps | 99.9% |
| IMR 4895 | <<locked>> | 80% | 33,649 psi | 83% | 2244 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 32,503 psi | 80% | 2178 fps | 97% |
| Norma 203B | <<locked>> | 80% | 32,314 psi | 80% | 2205 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 82% | 33,779 psi | 83% | 2257 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,889 psi | 64% | 1371 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 33,736 psi | 83% | 2290 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 28,152 psi | 69% | 2169 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 34,534 psi | 85% | 2198 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 29,689 psi | 73% | 2156 fps | 95.3% |
| Shooters World Precision | <<locked>> | 80% | 32,503 psi | 80% | 2178 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 33,112 psi | 82% | 2247 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,038 psi | 76% | 2093 fps | 99.3% |
| Somchem S355 | <<locked>> | 82% | 30,995 psi | 76% | 2169 fps | 95.5% |
| Somchem S365 | 34.8 gr | 90% | 28,587 psi | 70% | 2188 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 33,228 psi | 82% | 2195 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,794 psi | 83% | 2192 fps | 99.4% |
| Vihtavuori N150 | 30.1 gr | 82% | 26,397 psi | 65% | 2044 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 33,243 psi | 82% | 2205 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 32,184 psi | 79% | 2178 fps | 95.5% |
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 30 powders for 7 x 72 R loaded with the .284 | 160gr | Barnes Solid. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,382 fps; across all powders the maximum-charge window runs from 1,499 fps to 2,382 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 30 of the 30 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 85–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. 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, Vihtavuori N150 rank at the top here: for 7 x 72 R with the .284 | 160gr | Barnes Solid 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.