Load Specifications
Load data in caliber 7 x 72 R with .284 | 144gr | Peregrine VLR-5 bullet and 28 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Bofors RP3 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>> | 86% | 35,752 psi | 88% | 2408 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 36,042 psi | 89% | 2441 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,998 psi | 89% | 2431 fps | 96.8% |
| Bofors RP3 | <<locked>> | 88% | 35,230 psi | 87% | 2431 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 36,129 psi | 89% | 2438 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 82% | 36,477 psi | 90% | 2421 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,940 psi | 86% | 2438 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,069 psi | 84% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,346 psi | 87% | 2382 fps | 96% |
| IMR 3031 | <<locked>> | 82% | 35,099 psi | 86% | 2431 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 84% | 36,651 psi | 90% | 2441 fps | 98.8% |
| Lovex S062 | <<locked>> | 86% | 36,114 psi | 89% | 2402 fps | 97.2% |
| Norma 201 | <<locked>> | 82% | 35,433 psi | 87% | 2372 fps | 97% |
| Norma 202 | <<locked>> | 82% | 35,520 psi | 87% | 2392 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,997 psi | 84% | 1634 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 36,056 psi | 89% | 2510 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 84% | 35,795 psi | 88% | 2372 fps | 97% |
| Rottweil R 903 | <<locked>> | 90% | 35,143 psi | 87% | 2421 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 36,651 psi | 90% | 2441 fps | 98.8% |
| Shooters World Precision | <<locked>> | 86% | 36,114 psi | 89% | 2402 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 34,780 psi | 86% | 2313 fps | 99.4% |
| Somchem S355 | <<locked>> | 90% | 36,521 psi | 90% | 2431 fps | 96.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,737 psi | 88% | 2503 fps | 97.5% |
| Vihtavuori N135 | <<locked>> | 84% | 34,534 psi | 85% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 35,897 psi | 88% | 2379 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 90% | 34,882 psi | 86% | 2375 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 86% | 36,666 psi | 90% | 2411 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,347 psi | 90% | 2431 fps | 96.4% |
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 2495 | <<locked>> | 80% | 29,080 psi | 72% | 2267 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 27,557 psi | 68% | 2244 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 31,560 psi | 78% | 2333 fps | 95.2% |
| Bofors RP3 | 35.2 gr | 86% | 32,692 psi | 81% | 2375 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,866 psi | 83% | 2388 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 80% | 34,185 psi | 84% | 2372 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 32,561 psi | 80% | 2382 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,990 psi | 62% | 1424 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,127 psi | 82% | 2329 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 32,764 psi | 81% | 2382 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 31,778 psi | 78% | 2336 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 29,965 psi | 74% | 2257 fps | 95% |
| Norma 201 | <<locked>> | 80% | 33,214 psi | 82% | 2320 fps | 96.2% |
| Norma 202 | <<locked>> | 80% | 33,272 psi | 82% | 2343 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,034 psi | 62% | 1457 fps | 100% |
| ReloadSwiss RS 60 | 35.7 gr | 84% | 29,501 psi | 73% | 2336 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 31,705 psi | 78% | 2280 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 88% | 32,851 psi | 81% | 2369 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,778 psi | 78% | 2336 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 29,965 psi | 74% | 2257 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,689 psi | 71% | 2178 fps | 98.1% |
| Somchem S355 | <<locked>> | 88% | 34,229 psi | 84% | 2382 fps | 95.7% |
| Somchem S365 | <<locked>> | 96% | 31,473 psi | 78% | 2398 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 30,371 psi | 75% | 2280 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 31,473 psi | 78% | 2283 fps | 98.4% |
| Vihtavuori N150 | 33.7 gr | 84% | 28,601 psi | 70% | 2231 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 30,052 psi | 74% | 2264 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,098 psi | 84% | 2385 fps | 95.7% |
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 56 powders for 7 x 72 R loaded with the .284 | 144gr | Peregrine VLR-5. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,510 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,510 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 56 of the 56 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 144.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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. ReloadSwiss RS 60, Bofors RP3, Vihtavuori N150 rank at the top here: for 7 x 72 R with the .284 | 144gr | Peregrine VLR-5 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4350, ADI AR 2208, Alliant Power Pro 2000-MR 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.