Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 130gr | Geco EXPRESS bullet and 44 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 1680, ADI AR 2219 and Alliant Reloder-7.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 94% | 55,941 psi | 88% | 2320 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 40,422 psi | 63% | 2205 fps | 98.5% |
| Accurate 2460ᴾ | <<locked>> | 100% | 44,469 psi | 70% | 2277 fps | 96.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 28,718 psi | 45% | 2080 fps | 95.9% |
| Accurate LT-30ᴾ | <<locked>> | 100% | 55,100 psi | 86% | 2303 fps | 99.2% |
| Accurate LT-32ᴾ | <<locked>> | 100% | 55,680 psi | 87% | 2310 fps | 97.8% |
| Accurate No. 11 FS | <<locked>> | 82% | 54,418 psi | 85% | 2264 fps | 100% |
| ADI APS 450 | <<locked>> | 82% | 56,202 psi | 88% | 1703 fps | 100% |
| ADI AR 2205 | <<locked>> | 86% | 55,332 psi | 87% | 2201 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 56,652 psi | 89% | 2382 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 52,112 psi | 82% | 2392 fps | 98.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 37,362 psi | 59% | 2218 fps | 99.6% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 47,007 psi | 74% | 2313 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 98% | 56,014 psi | 88% | 2356 fps | 100% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 53,185 psi | 83% | 2306 fps | 99.2% |
| Hodgdon CFE BLK | <<locked>> | 86% | 57,072 psi | 89% | 2372 fps | 96.2% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 47,181 psi | 74% | 2326 fps | 98.1% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 47,688 psi | 75% | 2339 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 96% | 54,636 psi | 86% | 2313 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,705 psi | 48% | 1342 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 35,694 psi | 56% | 2192 fps | 96.3% |
| IMR 4198ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 2300 fps | 100% |
| IMR 4227 | <<locked>> | 92% | 54,752 psi | 86% | 2287 fps | 100% |
| Lovex D060 | <<locked>> | 86% | 55,593 psi | 87% | 2329 fps | 100% |
| Lovex D063 | <<locked>> | 82% | 55,100 psi | 86% | 2306 fps | 100% |
| Lovex D073.4ᴾ | <<locked>> | 100% | 57,305 psi | 90% | 2438 fps | 97.9% |
| Lovex S053 | <<locked>> | 94% | 55,535 psi | 87% | 2274 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 53,563 psi | 84% | 2375 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,676 psi | 48% | 1381 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 53,940 psi | 85% | 2320 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 46,325 psi | 73% | 2293 fps | 95.8% |
| Shooters World AR Plusᴾ | <<locked>> | 100% | 57,305 psi | 90% | 2438 fps | 97.9% |
| Shooters World Blackout | <<locked>> | 82% | 55,100 psi | 86% | 2306 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 55,593 psi | 87% | 2329 fps | 100% |
| Shooters World SOCOM | <<locked>> | 86% | 56,782 psi | 89% | 2310 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 98% | 56,579 psi | 89% | 2146 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 51,996 psi | 81% | 2392 fps | 98% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 48,776 psi | 76% | 2316 fps | 99.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 38,450 psi | 60% | 2142 fps | 96.1% |
| Vihtavuori N110 | <<locked>> | 88% | 55,376 psi | 87% | 2192 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 56,695 psi | 89% | 2339 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 45,818 psi | 72% | 2238 fps | 99.6% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 39,682 psi | 62% | 2152 fps | 98% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 32,227 psi | 51% | 2100 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | 18.9 gr | 80% | 35,549 psi | 56% | 2037 fps | 98.2% |
| Accurate 2015 | <<locked>> | 90% | 29,515 psi | 46% | 2005 fps | 95.5% |
| Accurate 2460 | <<locked>> | 96% | 39,088 psi | 61% | 2195 fps | 95% |
| Accurate 2495 | <<locked>> | 98% | 26,629 psi | 42% | 2031 fps | 95% |
| Accurate LT-30 | <<locked>> | 84% | 34,577 psi | 54% | 2005 fps | 95.3% |
| Accurate LT-32 | <<locked>> | 90% | 41,887 psi | 66% | 2123 fps | 95% |
| Accurate No. 11 FS | <<locked>> | 80% | 51,474 psi | 81% | 2231 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 53,722 psi | 84% | 1673 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 46,267 psi | 73% | 2096 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 30,937 psi | 48% | 2021 fps | 99.8% |
| ADI AR 2219 | 20.5 gr | 88% | 35,317 psi | 55% | 2129 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 86% | 24,816 psi | 39% | 1936 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 25,396 psi | 40% | 1916 fps | 95.1% |
| Alliant Reloder-7 | 17.5 gr | 80% | 32,634 psi | 51% | 2018 fps | 98.1% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 34,214 psi | 54% | 2031 fps | 95.5% |
| Hodgdon CFE BLK | <<locked>> | 84% | 53,258 psi | 83% | 2323 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 92% | 36,782 psi | 58% | 2156 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 94% | 39,421 psi | 62% | 2211 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 84% | 38,261 psi | 60% | 2077 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,655 psi | 36% | 1201 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 33,779 psi | 53% | 2152 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 28,398 psi | 45% | 1929 fps | 97.1% |
| IMR 4227 | <<locked>> | 80% | 38,261 psi | 60% | 2067 fps | 99.9% |
| Lovex D060 | <<locked>> | 80% | 46,514 psi | 73% | 2211 fps | 99.9% |
| Lovex D063 | <<locked>> | 80% | 52,098 psi | 82% | 2270 fps | 100% |
| Lovex D073.4 | <<locked>> | 92% | 43,207 psi | 68% | 2257 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 37,637 psi | 59% | 2044 fps | 100% |
| Norma 200 | <<locked>> | 80% | 28,979 psi | 45% | 1988 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,307 psi | 35% | 1227 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 37,637 psi | 59% | 2096 fps | 99.8% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 43,830 psi | 69% | 2257 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 92% | 43,207 psi | 68% | 2257 fps | 95.3% |
| Shooters World Blackout | <<locked>> | 80% | 52,098 psi | 82% | 2270 fps | 100% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 46,514 psi | 73% | 2211 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 80% | 46,746 psi | 73% | 2192 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 35,259 psi | 55% | 1890 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 40,147 psi | 63% | 2221 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 32,097 psi | 50% | 2037 fps | 95.2% |
| Somchem S335 | <<locked>> | 98% | 35,926 psi | 56% | 2096 fps | 95.3% |
| Vihtavuori N110 | <<locked>> | 80% | 44,440 psi | 70% | 2070 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 31,183 psi | 49% | 1995 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 26,585 psi | 42% | 1893 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 92% | 31,111 psi | 49% | 1995 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 98% | 30,110 psi | 47% | 2054 fps | 95.6% |
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 44 powders for 7 x 44 Penna loaded with the .277 | 130gr | Geco EXPRESS. Lovex D073.4 delivers the highest muzzle velocity at 2,438 fps; across all powders the maximum-charge window runs from 1,342 fps to 2,438 fps. Accurate 2015 gives the best case fill at 100 %, and 44 of the 44 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 45–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.277" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. Accurate 1680, ADI AR 2219, Alliant Reloder-7 rank at the top here: for 7 x 44 Penna with the .277 | 130gr | Geco EXPRESS 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.