Load Specifications
Load data in caliber 7 x 72 R with .284 | 168gr | Peregrine Glider GRM bullet and 36 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Somchem S365.
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% | 34,809 psi | 86% | 2175 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 35,070 psi | 86% | 2205 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 86% | 36,390 psi | 90% | 2185 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 34,998 psi | 86% | 2198 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 84% | 35,708 psi | 88% | 2208 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,737 psi | 86% | 2260 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 36,405 psi | 90% | 2221 fps | 95.7% |
| Bofors RP3 | <<locked>> | 88% | 36,492 psi | 90% | 2244 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 36,129 psi | 89% | 2234 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 36,216 psi | 89% | 2254 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 84% | 1440 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 36,492 psi | 90% | 2238 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 35,882 psi | 88% | 2169 fps | 96.3% |
| IMR 4895 | <<locked>> | 84% | 36,506 psi | 90% | 2238 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 82% | 35,650 psi | 88% | 2208 fps | 99.3% |
| Lovex S062 | <<locked>> | 84% | 35,027 psi | 86% | 2169 fps | 98% |
| Norma 201 | <<locked>> | 82% | 36,738 psi | 90% | 2185 fps | 98.3% |
| Norma 203B | <<locked>> | 84% | 35,012 psi | 86% | 2201 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 84% | 34,606 psi | 85% | 2208 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,287 psi | 84% | 1473 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 34,664 psi | 85% | 2270 fps | 99% |
| Rottweil R 902 | <<locked>> | 82% | 34,969 psi | 86% | 2146 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 90% | 36,434 psi | 90% | 2234 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 35,650 psi | 88% | 2208 fps | 99.3% |
| Shooters World Precision | <<locked>> | 84% | 35,027 psi | 86% | 2169 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,969 psi | 89% | 2241 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,114 psi | 89% | 2195 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 35,882 psi | 88% | 2123 fps | 99.9% |
| Somchem S355 | <<locked>> | 88% | 35,665 psi | 88% | 2205 fps | 97.4% |
| Somchem S365 | <<locked>> | 98% | 34,650 psi | 85% | 2270 fps | 98.3% |
| Vihtavuori N135 | <<locked>> | 84% | 35,911 psi | 88% | 2178 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 34,751 psi | 86% | 2146 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 90% | 36,027 psi | 89% | 2192 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 84% | 35,737 psi | 88% | 2182 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,012 psi | 86% | 2175 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 35,215 psi | 87% | 2201 fps | 97.3% |
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% | 30,516 psi | 75% | 2093 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 28,906 psi | 71% | 2077 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 84% | 34,258 psi | 84% | 2142 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 28,674 psi | 71% | 2064 fps | 95.4% |
| Alliant Reloder-15 | <<locked>> | 82% | 33,547 psi | 83% | 2165 fps | 95.5% |
| Alliant Reloder-17 | 33.9 gr | 88% | 32,460 psi | 80% | 2208 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 34,301 psi | 84% | 2175 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 27,702 psi | 68% | 2057 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 31,691 psi | 78% | 2142 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,546 psi | 78% | 2152 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,266 psi | 62% | 1283 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 34,142 psi | 84% | 2192 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 33,721 psi | 83% | 2126 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 31,923 psi | 79% | 2142 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 80% | 33,112 psi | 82% | 2159 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 30,937 psi | 76% | 2083 fps | 96.7% |
| Norma 201 | <<locked>> | 80% | 34,548 psi | 85% | 2142 fps | 97.8% |
| Norma 203B | <<locked>> | 80% | 30,632 psi | 75% | 2106 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 32,329 psi | 80% | 2159 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,411 psi | 63% | 1316 fps | 100% |
| ReloadSwiss RS 60 | 30.9 gr | 80% | 26,890 psi | 66% | 2073 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 32,866 psi | 81% | 2103 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 84% | 30,037 psi | 74% | 2103 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,112 psi | 82% | 2159 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 30,937 psi | 76% | 2083 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 31,647 psi | 78% | 2149 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 33,953 psi | 84% | 2152 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,602 psi | 73% | 2001 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 29,298 psi | 72% | 2067 fps | 95.1% |
| Somchem S365 | 32.9 gr | 90% | 26,992 psi | 66% | 2083 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 31,502 psi | 78% | 2096 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 32,634 psi | 80% | 2103 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 26,020 psi | 64% | 1975 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 31,372 psi | 77% | 2093 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 30,690 psi | 76% | 2080 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,851 psi | 81% | 2152 fps | 96.6% |
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 60 powders for 7 x 72 R loaded with the .284 | 168gr | Peregrine Glider GRM. ReloadSwiss RS 62 delivers the highest muzzle velocity at 2,287 fps; across all powders the maximum-charge window runs from 1,440 fps to 2,287 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 60 of the 60 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.284" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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. ReloadSwiss RS 60, Alliant Reloder-17, Somchem S365 rank at the top here: for 7 x 72 R with the .284 | 168gr | Peregrine Glider GRM they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-16, Alliant Reloder-23, Hodgdon H380 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.