Load Specifications
Load data in caliber 7 x 72 R with .284 | 152gr | Barnes LRX BT bullet and 32 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Somchem S365 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% | 36,448 psi | 90% | 2346 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 34,360 psi | 85% | 2329 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 36,738 psi | 90% | 2372 fps | 97.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,550 psi | 90% | 2438 fps | 96.5% |
| Bofors RP3 | <<locked>> | 88% | 35,766 psi | 88% | 2369 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,331 psi | 87% | 2352 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 35,317 psi | 87% | 2372 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,171 psi | 84% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,114 psi | 89% | 2323 fps | 96.7% |
| IMR 3031 | <<locked>> | 82% | 35,868 psi | 88% | 2369 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 35,897 psi | 88% | 2362 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 82% | 34,940 psi | 86% | 2333 fps | 98.7% |
| Lovex S062 | <<locked>> | 86% | 36,695 psi | 90% | 2339 fps | 97.8% |
| Norma 201 | <<locked>> | 82% | 36,158 psi | 89% | 2313 fps | 97.6% |
| Norma 202 | <<locked>> | 82% | 36,289 psi | 89% | 2329 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 86% | 36,463 psi | 90% | 2382 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,142 psi | 84% | 1578 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 36,666 psi | 90% | 2454 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 84% | 36,564 psi | 90% | 2313 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 90% | 35,650 psi | 88% | 2359 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 34,940 psi | 86% | 2333 fps | 98.7% |
| Shooters World Precision | <<locked>> | 86% | 36,695 psi | 90% | 2339 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,491 psi | 87% | 2320 fps | 95.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 35,230 psi | 87% | 2247 fps | 99.7% |
| Somchem S341 | <<locked>> | 82% | 36,390 psi | 90% | 2333 fps | 96.1% |
| Somchem S355 | <<locked>> | 88% | 34,896 psi | 86% | 2323 fps | 96.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,550 psi | 90% | 2448 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 84% | 35,331 psi | 87% | 2310 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 36,477 psi | 90% | 2316 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 90% | 35,360 psi | 87% | 2313 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 84% | 35,041 psi | 86% | 2303 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,447 psi | 85% | 2320 fps | 96.3% |
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% | 29,733 psi | 73% | 2208 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 28,210 psi | 69% | 2188 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 30,226 psi | 74% | 2228 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,301 psi | 84% | 2385 fps | 95.6% |
| Bofors RP3 | <<locked>> | 84% | 31,140 psi | 77% | 2267 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,373 psi | 82% | 2310 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,053 psi | 76% | 2270 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,135 psi | 62% | 1375 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,779 psi | 83% | 2274 fps | 95.9% |
| IMR 3031 | <<locked>> | 80% | 33,388 psi | 82% | 2320 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 33,547 psi | 83% | 2313 fps | 95.4% |
| Lovex D073.6 | <<locked>> | 80% | 32,634 psi | 80% | 2283 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 30,284 psi | 75% | 2198 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 33,852 psi | 83% | 2264 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 33,953 psi | 84% | 2283 fps | 99% |
| Ramshot Big Game | <<locked>> | 84% | 33,953 psi | 84% | 2326 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,208 psi | 62% | 1407 fps | 100% |
| ReloadSwiss RS 60 | 33.9 gr | 82% | 28,195 psi | 69% | 2234 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 32,242 psi | 79% | 2221 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 86% | 31,328 psi | 77% | 2264 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,634 psi | 80% | 2283 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 30,284 psi | 75% | 2198 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,228 psi | 82% | 2270 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,153 psi | 72% | 2119 fps | 98.6% |
| Somchem S341 | <<locked>> | 80% | 34,113 psi | 84% | 2283 fps | 95.3% |
| Somchem S355 | <<locked>> | 86% | 32,619 psi | 80% | 2274 fps | 95.6% |
| Somchem S365 | 36.8 gr | 94% | 30,095 psi | 74% | 2293 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 30,937 psi | 76% | 2221 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 32,140 psi | 79% | 2228 fps | 98.9% |
| Vihtavuori N150 | 32.7 gr | 84% | 29,080 psi | 72% | 2175 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 30,719 psi | 76% | 2211 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,285 psi | 80% | 2270 fps | 95.5% |
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 32 powders for 7 x 72 R loaded with the .284 | 152gr | Barnes LRX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,454 fps; across all powders the maximum-charge window runs from 1,545 fps to 2,454 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 32 of the 32 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 152.0 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, Somchem S365, Vihtavuori N150 rank at the top here: for 7 x 72 R with the .284 | 152gr | Barnes LRX BT 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.