Load Specifications
Load data in caliber 7 x 72 R with .284 | 140gr | Peregrine Plainsmaster (VLR-4) bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Vihtavuori N150 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 2495 | <<locked>> | 86% | 34,693 psi | 85% | 2425 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 35,621 psi | 88% | 2454 fps | 98.3% |
| Accurate 4064 | <<locked>> | 88% | 36,332 psi | 89% | 2470 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,984 psi | 89% | 2457 fps | 96.4% |
| Bofors RP3 | <<locked>> | 88% | 35,331 psi | 87% | 2457 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,172 psi | 87% | 2451 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 82% | 36,535 psi | 90% | 2448 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 36,303 psi | 89% | 2500 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,156 psi | 84% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 36,230 psi | 89% | 2431 fps | 95.9% |
| IMR 3031 | <<locked>> | 86% | 36,622 psi | 90% | 2490 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 84% | 36,724 psi | 90% | 2470 fps | 98.5% |
| Lovex S062 | <<locked>> | 86% | 36,216 psi | 89% | 2428 fps | 96.9% |
| Norma 201 | <<locked>> | 82% | 35,607 psi | 88% | 2398 fps | 96.6% |
| Norma 202 | <<locked>> | 82% | 35,621 psi | 88% | 2418 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,113 psi | 84% | 1657 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 36,071 psi | 89% | 2533 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 36,013 psi | 89% | 2398 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 90% | 35,230 psi | 87% | 2448 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 36,724 psi | 90% | 2470 fps | 98.5% |
| Shooters World Precision | <<locked>> | 86% | 36,216 psi | 89% | 2428 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 34,780 psi | 86% | 2339 fps | 99.3% |
| Somchem S355 | <<locked>> | 90% | 36,579 psi | 90% | 2457 fps | 96% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,708 psi | 88% | 2523 fps | 97% |
| Vihtavuori N133 | <<locked>> | 82% | 35,056 psi | 86% | 2336 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 86% | 36,013 psi | 89% | 2434 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 35,404 psi | 87% | 2398 fps | 99% |
| Vihtavuori N150 | <<locked>> | 94% | 35,114 psi | 86% | 2411 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 84% | 34,969 psi | 86% | 2411 fps | 98.6% |
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% | 28,195 psi | 69% | 2277 fps | 99.2% |
| Accurate 2520 | <<locked>> | 80% | 33,040 psi | 81% | 2398 fps | 97.7% |
| Accurate 4064 | <<locked>> | 80% | 28,007 psi | 69% | 2277 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 33,750 psi | 83% | 2408 fps | 95.6% |
| Bofors RP3 | <<locked>> | 86% | 32,808 psi | 81% | 2402 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,953 psi | 81% | 2402 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 80% | 34,272 psi | 84% | 2398 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,084 psi | 84% | 2448 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,106 psi | 62% | 1444 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 33,997 psi | 84% | 2382 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 30,153 psi | 74% | 2346 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 80% | 31,966 psi | 79% | 2365 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 31,894 psi | 79% | 2329 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 33,460 psi | 82% | 2349 fps | 95.9% |
| Norma 202 | <<locked>> | 80% | 33,373 psi | 82% | 2369 fps | 98.3% |
| ReloadSwiss RS 14 | 11.1 gr | 80% | 25,193 psi | 62% | 1476 fps | 100% |
| ReloadSwiss RS 60 | 36.6 gr | 86% | 31,705 psi | 78% | 2418 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 31,981 psi | 79% | 2306 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 88% | 33,011 psi | 81% | 2395 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,966 psi | 79% | 2365 fps | 97.3% |
| Shooters World Precision | <<locked>> | 82% | 31,894 psi | 79% | 2329 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,805 psi | 71% | 2201 fps | 97.9% |
| Somchem S355 | <<locked>> | 88% | 34,345 psi | 85% | 2408 fps | 95.3% |
| Somchem S365 | <<locked>> | 96% | 31,589 psi | 78% | 2421 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 33,127 psi | 82% | 2297 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 29,530 psi | 73% | 2297 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 80% | 31,140 psi | 77% | 2300 fps | 98% |
| Vihtavuori N150 | 34.4 gr | 90% | 30,850 psi | 76% | 2313 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 30,821 psi | 76% | 2316 fps | 97.4% |
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 29 powders for 7 x 72 R loaded with the .284 | 140gr | Peregrine Plainsmaster (VLR-4). ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,533 fps; across all powders the maximum-charge window runs from 1,621 fps to 2,533 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 29 of the 29 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 140.0 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, 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, Vihtavuori N150, ReloadSwiss RS 14 rank at the top here: for 7 x 72 R with the .284 | 140gr | Peregrine Plainsmaster (VLR-4) 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.