Load Specifications
Load data in caliber 7 x 72 R with .284 | 180gr | Berger VLD Target bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, Accurate 4350 and Norma URP.
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 4350 | <<locked>> | 90% | 35,041 psi | 86% | 2195 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 36,201 psi | 89% | 2159 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,027 psi | 89% | 2208 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 86% | 35,505 psi | 87% | 2228 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,287 psi | 84% | 2208 fps | 97.9% |
| Bofors RP3 | <<locked>> | 82% | 35,389 psi | 87% | 2156 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 82% | 36,651 psi | 90% | 2162 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 34,882 psi | 86% | 2159 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,070 psi | 86% | 1421 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,042 psi | 89% | 2116 fps | 97.6% |
| IMR 4831 | <<locked>> | 94% | 34,766 psi | 86% | 2172 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 35,679 psi | 88% | 2195 fps | 96.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,636 psi | 88% | 1457 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 35,520 psi | 87% | 2238 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,085 psi | 86% | 2215 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 84% | 35,636 psi | 88% | 2156 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 36,695 psi | 90% | 2198 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 36,550 psi | 90% | 2070 fps | 100% |
| Somchem S355 | <<locked>> | 82% | 34,476 psi | 85% | 2119 fps | 98.1% |
| Somchem S365 | <<locked>> | 94% | 36,274 psi | 89% | 2251 fps | 99.6% |
| Unknown powder | <<locked>> | 88% | 36,622 psi | 90% | 2198 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 88% | 35,360 psi | 87% | 2119 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 88% | 36,608 psi | 90% | 2178 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 86% | 34,708 psi | 85% | 2175 fps | 96.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,564 psi | 90% | 2270 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 35,346 psi | 87% | 2136 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 30,705 psi | 76% | 2195 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 4350 | 33.4 gr | 86% | 30,472 psi | 75% | 2100 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,924 psi | 84% | 2113 fps | 98.3% |
| Alliant Reloder-16 | 32.6 gr | 86% | 31,966 psi | 79% | 2116 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 29,167 psi | 72% | 2080 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 94% | 28,877 psi | 71% | 2080 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 33,388 psi | 82% | 2116 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 80% | 34,316 psi | 85% | 2116 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 27,354 psi | 67% | 1985 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 64% | 1266 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,997 psi | 84% | 2073 fps | 97% |
| IMR 4831 | <<locked>> | 90% | 30,719 psi | 76% | 2087 fps | 95.1% |
| Norma URP | 33.1 gr | 86% | 31,575 psi | 78% | 2110 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,440 psi | 65% | 1299 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,038 psi | 76% | 2136 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 32,909 psi | 81% | 2165 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 31,372 psi | 77% | 2070 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,285 psi | 80% | 2110 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,156 psi | 84% | 2031 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 32,271 psi | 79% | 2073 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 24,874 psi | 61% | 1975 fps | 95.6% |
| Unknown powder | <<locked>> | 86% | 34,330 psi | 85% | 2152 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 27,731 psi | 68% | 1959 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 84% | 32,155 psi | 79% | 2087 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 84% | 32,532 psi | 80% | 2129 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 94% | 30,284 psi | 75% | 2136 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 27,499 psi | 68% | 1959 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 98% | 28,906 psi | 71% | 2142 fps | 96% |
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 50 powders for 7 x 72 R loaded with the .284 | 180gr | Berger VLD Target. Alliant Reloder-26 delivers the highest muzzle velocity at 2,280 fps; across all powders the maximum-charge window runs from 1,421 fps to 2,280 fps. Accurate 3100 gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 180.0 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-25 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. Alliant Reloder-16, Accurate 4350, Norma URP rank at the top here: for 7 x 72 R with the .284 | 180gr | Berger VLD Target they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, Alliant Reloder-25 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.