Load Specifications
Load data in caliber 7 x 72 R with .284 | 160gr | Peregrine Glider GRM bullet and 37 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% | 36,492 psi | 90% | 2270 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 34,389 psi | 85% | 2257 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 36,564 psi | 90% | 2293 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,550 psi | 90% | 2362 fps | 96.9% |
| Bofors RP3 | <<locked>> | 88% | 35,694 psi | 88% | 2293 fps | 97.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 36,709 psi | 90% | 2303 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,230 psi | 87% | 2280 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 35,520 psi | 87% | 2303 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,069 psi | 84% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,998 psi | 89% | 2247 fps | 97% |
| IMR 3031 | <<locked>> | 82% | 35,998 psi | 89% | 2293 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 35,926 psi | 88% | 2290 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 82% | 34,969 psi | 86% | 2260 fps | 99% |
| Lovex S062 | <<locked>> | 86% | 36,680 psi | 90% | 2264 fps | 98% |
| Norma 201 | <<locked>> | 82% | 36,013 psi | 89% | 2234 fps | 97.8% |
| Norma 202 | <<locked>> | 82% | 36,143 psi | 89% | 2254 fps | 99.5% |
| Norma 203B | <<locked>> | 86% | 36,608 psi | 90% | 2297 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 86% | 36,245 psi | 89% | 2303 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,069 psi | 84% | 1516 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 36,129 psi | 89% | 2343 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 36,579 psi | 90% | 2375 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 84% | 36,434 psi | 90% | 2238 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 90% | 35,911 psi | 88% | 2290 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 34,969 psi | 86% | 2260 fps | 99% |
| Shooters World Precision | <<locked>> | 86% | 36,680 psi | 90% | 2264 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,520 psi | 87% | 2293 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,505 psi | 87% | 2247 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 35,418 psi | 87% | 2178 fps | 99.8% |
| Somchem S341 | <<locked>> | 82% | 36,608 psi | 90% | 2264 fps | 96.5% |
| Somchem S355 | <<locked>> | 88% | 34,998 psi | 86% | 2254 fps | 96.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,419 psi | 90% | 2372 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 84% | 35,099 psi | 86% | 2231 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 36,419 psi | 90% | 2241 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 90% | 35,607 psi | 88% | 2247 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 84% | 35,114 psi | 86% | 2234 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,724 psi | 90% | 2270 fps | 96.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,621 psi | 85% | 2251 fps | 96.7% |
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% | 29,791 psi | 73% | 2139 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 28,224 psi | 70% | 2123 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 30,139 psi | 74% | 2156 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 88% | 32,010 psi | 79% | 2257 fps | 95% |
| Bofors RP3 | <<locked>> | 82% | 29,022 psi | 71% | 2146 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,287 psi | 84% | 2254 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,228 psi | 82% | 2234 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,053 psi | 76% | 2201 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,324 psi | 62% | 1325 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,881 psi | 83% | 2205 fps | 96.3% |
| IMR 3031 | <<locked>> | 80% | 33,417 psi | 82% | 2244 fps | 99.9% |
| IMR 4895 | <<locked>> | 80% | 31,502 psi | 78% | 2195 fps | 95% |
| Lovex D073.6 | <<locked>> | 80% | 32,576 psi | 80% | 2211 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 30,298 psi | 75% | 2129 fps | 96.1% |
| Norma 201 | <<locked>> | 80% | 33,852 psi | 83% | 2192 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 33,997 psi | 84% | 2211 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 32,111 psi | 79% | 2201 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 33,924 psi | 84% | 2254 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 63% | 1358 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 33,707 psi | 83% | 2287 fps | 95% |
| ReloadSwiss RS 60 | 32.4 gr | 82% | 28,050 psi | 69% | 2162 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 32,271 psi | 79% | 2152 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 86% | 31,415 psi | 77% | 2195 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,576 psi | 80% | 2211 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 30,298 psi | 75% | 2129 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 33,257 psi | 82% | 2244 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,199 psi | 82% | 2198 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,095 psi | 72% | 2051 fps | 98.8% |
| Somchem S341 | <<locked>> | 80% | 34,200 psi | 84% | 2215 fps | 95.7% |
| Somchem S355 | <<locked>> | 84% | 30,719 psi | 76% | 2162 fps | 95.2% |
| Somchem S365 | 34.5 gr | 92% | 28,268 psi | 70% | 2175 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 30,864 psi | 76% | 2149 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 31,908 psi | 79% | 2152 fps | 99% |
| Vihtavuori N150 | 30.6 gr | 82% | 27,325 psi | 67% | 2064 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 30,618 psi | 75% | 2139 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 32,285 psi | 80% | 2175 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,285 psi | 80% | 2201 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 37 powders for 7 x 72 R loaded with the .284 | 160gr | Peregrine Glider GRM. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,375 fps; across all powders the maximum-charge window runs from 1,483 fps to 2,375 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 37 of the 37 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 160.0 gr projectile in 0.284" calls for a 1:8.0 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 | 160gr | Peregrine Glider GRM 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.