Load Specifications
Load data in caliber 7 x 72 R with .284 | 162gr | RWS Kegelspitz 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 ReloadSwiss RS 14.
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% | 36,405 psi | 90% | 2379 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,780 psi | 86% | 2339 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 86% | 36,608 psi | 90% | 2415 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,520 psi | 87% | 2395 fps | 97.9% |
| Bofors RP3 | <<locked>> | 82% | 36,695 psi | 90% | 2339 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 36,100 psi | 89% | 2343 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,331 psi | 87% | 1552 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 35,172 psi | 87% | 2336 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,476 psi | 87% | 1585 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 36,593 psi | 90% | 2425 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,289 psi | 89% | 2398 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 82% | 34,461 psi | 85% | 2290 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 35,607 psi | 88% | 2336 fps | 97.5% |
| Somchem S355 | <<locked>> | 82% | 35,404 psi | 87% | 2293 fps | 98% |
| Somchem S365 | <<locked>> | 92% | 35,201 psi | 87% | 2388 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 84% | 36,013 psi | 89% | 2283 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 88% | 36,201 psi | 89% | 2333 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 88% | 35,650 psi | 88% | 2339 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 98% | 35,853 psi | 88% | 2418 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 36,593 psi | 90% | 2320 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,720 psi | 78% | 2379 fps | 97.1% |
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 | <<locked>> | 86% | 31,879 psi | 79% | 2280 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 86% | 32,837 psi | 81% | 2293 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 30,008 psi | 74% | 2251 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,849 psi | 74% | 2251 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 34,301 psi | 84% | 2290 fps | 98.2% |
| Hodgdon Hybrid 100V | 35.6 gr | 84% | 28,181 psi | 69% | 2152 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,179 psi | 64% | 1381 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 33,127 psi | 82% | 2290 fps | 95.5% |
| ReloadSwiss RS 14 | 12 gr | 80% | 26,397 psi | 65% | 1414 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,923 psi | 79% | 2313 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 34,026 psi | 84% | 2346 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,184 psi | 79% | 2238 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,402 psi | 82% | 2287 fps | 96.7% |
| Somchem S355 | <<locked>> | 80% | 33,373 psi | 82% | 2251 fps | 97.4% |
| Somchem S365 | 35.7 gr | 82% | 25,643 psi | 63% | 2136 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 31,517 psi | 78% | 2192 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 86% | 34,185 psi | 84% | 2287 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 86% | 33,417 psi | 82% | 2290 fps | 95% |
| Vihtavuori N555 | <<locked>> | 94% | 31,662 psi | 78% | 2320 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,195 psi | 69% | 2119 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,791 psi | 73% | 2320 fps | 95.9% |
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 41 powders for 7 x 72 R loaded with the .284 | 162gr | RWS Kegelspitz. Alliant Reloder-26 delivers the highest muzzle velocity at 2,467 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,467 fps. Accurate 3100 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 162.0 gr projectile in 0.284" calls for a 1:13.5 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. Somchem S365, Hodgdon Hybrid 100V, ReloadSwiss RS 14 rank at the top here: for 7 x 72 R with the .284 | 162gr | RWS Kegelspitz they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, Alliant Reloder-25, Bofors RP7 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.