Load Specifications
Load data in caliber 7 x 72 R with .284 | 165gr | Peregrine VLR-5 bullet and 33 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, Somchem S365 and Rottweil R 903.
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>> | 84% | 35,998 psi | 89% | 2228 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 36,172 psi | 89% | 2260 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 84% | 34,911 psi | 86% | 2192 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 36,013 psi | 89% | 2254 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,680 psi | 90% | 2264 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 35,795 psi | 88% | 2323 fps | 97.3% |
| Bofors RP3 | <<locked>> | 86% | 35,172 psi | 87% | 2254 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,824 psi | 86% | 2247 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 34,650 psi | 85% | 2257 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,287 psi | 84% | 1470 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 36,579 psi | 90% | 2221 fps | 96.6% |
| IMR 4895 | <<locked>> | 82% | 35,041 psi | 86% | 2244 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 82% | 36,709 psi | 90% | 2260 fps | 99.5% |
| Lovex S062 | <<locked>> | 84% | 36,114 psi | 89% | 2224 fps | 98.3% |
| Norma 203B | <<locked>> | 84% | 36,013 psi | 89% | 2257 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 84% | 35,592 psi | 88% | 2264 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,693 psi | 85% | 1509 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 35,273 psi | 87% | 2297 fps | 96.2% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 35,839 psi | 88% | 2336 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 35,810 psi | 88% | 2198 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 88% | 35,418 psi | 87% | 2251 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 36,709 psi | 90% | 2260 fps | 99.5% |
| Shooters World Precision | <<locked>> | 84% | 36,114 psi | 89% | 2224 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,606 psi | 85% | 2251 fps | 96.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 34,432 psi | 85% | 2133 fps | 99.9% |
| Somchem S355 | <<locked>> | 88% | 36,579 psi | 90% | 2257 fps | 97.7% |
| Somchem S365 | <<locked>> | 98% | 35,984 psi | 89% | 2339 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 82% | 34,635 psi | 85% | 2192 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 35,810 psi | 88% | 2198 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 88% | 34,983 psi | 86% | 2205 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 84% | 36,637 psi | 90% | 2234 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,853 psi | 88% | 2231 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 36,100 psi | 89% | 2254 fps | 97.6% |
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% | 31,444 psi | 77% | 2142 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 29,805 psi | 73% | 2129 fps | 99% |
| ADI AR 2208 | <<locked>> | 82% | 32,895 psi | 81% | 2149 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,704 psi | 73% | 2119 fps | 95.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 32,300 psi | 80% | 2172 fps | 95.1% |
| Alliant Reloder-17 | 34.6 gr | 86% | 31,401 psi | 77% | 2221 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 28,674 psi | 71% | 2110 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 30,719 psi | 76% | 2156 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,416 psi | 80% | 2208 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,309 psi | 62% | 1309 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,445 psi | 80% | 2133 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 33,011 psi | 81% | 2201 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 80% | 34,185 psi | 84% | 2215 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 31,749 psi | 78% | 2136 fps | 97.1% |
| Norma 203B | <<locked>> | 80% | 31,662 psi | 78% | 2162 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 82% | 33,330 psi | 82% | 2218 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,454 psi | 63% | 1342 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 33,199 psi | 82% | 2251 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 27,572 psi | 68% | 2129 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 80% | 33,721 psi | 83% | 2156 fps | 97.6% |
| Rottweil R 903 | 31.1 gr | 82% | 28,892 psi | 71% | 2110 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,185 psi | 84% | 2215 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 31,749 psi | 78% | 2136 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,387 psi | 80% | 2201 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,414 psi | 75% | 2054 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 30,023 psi | 74% | 2119 fps | 95.5% |
| Somchem S365 | 34.3 gr | 90% | 27,818 psi | 69% | 2142 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 32,489 psi | 80% | 2149 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,417 psi | 82% | 2152 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 26,672 psi | 66% | 2021 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 32,024 psi | 79% | 2142 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,560 psi | 78% | 2139 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,736 psi | 83% | 2205 fps | 96.9% |
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 33 powders for 7 x 72 R loaded with the .284 | 165gr | Peregrine VLR-5. Somchem S365 delivers the highest muzzle velocity at 2,339 fps; across all powders the maximum-charge window runs from 1,470 fps to 2,339 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 33 of the 33 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 84–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.284" calls for a 1:8.5 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. Alliant Reloder-17, Somchem S365, Rottweil R 903 rank at the top here: for 7 x 72 R with the .284 | 165gr | Peregrine VLR-5 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.