Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 100gr | Impala LWHV LS bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World Buffalo Rifle, Lovex D060 and Shooters World Blackout.
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 1680ᴾ | <<locked>> | 100% | 53,722 psi | 84% | 2530 fps | 97.8% |
| Accurate 5744 | <<locked>> | 88% | 57,566 psi | 90% | 2612 fps | 99.2% |
| Accurate No. 11 FS | <<locked>> | 90% | 57,290 psi | 90% | 2566 fps | 100% |
| ADI APS 450 | <<locked>> | 86% | 57,421 psi | 90% | 1909 fps | 100% |
| ADI AR 2205 | <<locked>> | 92% | 54,766 psi | 86% | 2454 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 44,106 psi | 69% | 2500 fps | 99.5% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 47,616 psi | 75% | 2497 fps | 97.7% |
| Hodgdon LilGun | <<locked>> | 84% | 55,390 psi | 87% | 2559 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,399 psi | 46% | 1480 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 40,582 psi | 64% | 2379 fps | 96.4% |
| IMR 4227ᴾ | <<locked>> | 100% | 56,231 psi | 88% | 2566 fps | 99.8% |
| Lovex D060 | <<locked>> | 94% | 57,566 psi | 90% | 2612 fps | 99.2% |
| Lovex D063 | <<locked>> | 88% | 54,447 psi | 85% | 2549 fps | 98.9% |
| Lovex S040 | <<locked>> | 86% | 57,058 psi | 89% | 2461 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 53,447 psi | 84% | 2526 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 41,582 psi | 65% | 2461 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 29,327 psi | 46% | 1522 fps | 100% |
| ReloadSwiss RS 36ᴾ | <<locked>> | 100% | 54,708 psi | 86% | 2592 fps | 99.7% |
| Shooters World Blackout | <<locked>> | 88% | 54,447 psi | 85% | 2549 fps | 98.9% |
| Shooters World Buffalo Rifle | <<locked>> | 94% | 57,566 psi | 90% | 2612 fps | 99.2% |
| Shooters World SOCOM | <<locked>> | 92% | 55,680 psi | 87% | 2549 fps | 99.3% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 48,994 psi | 77% | 2336 fps | 100% |
| Vihtavuori N110 | <<locked>> | 96% | 56,536 psi | 89% | 2490 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 44,396 psi | 70% | 2464 fps | 99.9% |
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 | <<locked>> | 90% | 39,784 psi | 62% | 2320 fps | 95% |
| Accurate 5744 | <<locked>> | 80% | 45,963 psi | 72% | 2434 fps | 97.6% |
| Accurate No. 11 FS | <<locked>> | 80% | 41,872 psi | 66% | 2349 fps | 99.3% |
| ADI APS 450 | <<locked>> | 80% | 52,127 psi | 82% | 1847 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 38,914 psi | 61% | 2224 fps | 99.8% |
| ADI AR 2207 | <<locked>> | 82% | 26,963 psi | 42% | 2136 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 92% | 37,463 psi | 59% | 2323 fps | 95.3% |
| Hodgdon LilGun | <<locked>> | 80% | 48,588 psi | 76% | 2477 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,828 psi | 34% | 1322 fps | 100% |
| IMR 4198 | <<locked>> | 96% | 36,390 psi | 57% | 2293 fps | 95.1% |
| IMR 4227 | <<locked>> | 80% | 32,242 psi | 51% | 2165 fps | 95.8% |
| Lovex D060 | 15.6 gr | 80% | 39,421 psi | 62% | 2316 fps | 96.1% |
| Lovex D063 | <<locked>> | 80% | 42,612 psi | 67% | 2369 fps | 97% |
| Lovex S040 | <<locked>> | 80% | 48,298 psi | 76% | 2352 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 31,183 psi | 49% | 2152 fps | 98.6% |
| Norma 200 | <<locked>> | 94% | 35,273 psi | 55% | 2339 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,466 psi | 34% | 1352 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 30,690 psi | 48% | 2175 fps | 95% |
| Shooters World Blackout | 17.4 gr | 80% | 42,612 psi | 67% | 2369 fps | 97% |
| Shooters World Buffalo Rifle | 15.6 gr | 80% | 39,421 psi | 62% | 2316 fps | 96.1% |
| Shooters World SOCOM | <<locked>> | 80% | 38,363 psi | 60% | 2283 fps | 96.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 30,081 psi | 47% | 2037 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 37,086 psi | 58% | 2221 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 25,860 psi | 41% | 2073 fps | 96.1% |
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 24 powders for 7 x 44 Penna loaded with the .277 | 100gr | Impala LWHV LS. Accurate 5744 delivers the highest muzzle velocity at 2,612 fps; across all powders the maximum-charge window runs from 1,480 fps to 2,612 fps. Accurate 1680 gives the best case fill at 100 %, and 24 of the 24 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 46–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.277" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 1680, ADI AR 2207, Alliant Reloder-7 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. Shooters World Buffalo Rifle, Lovex D060, Shooters World Blackout rank at the top here: for 7 x 44 Penna with the .277 | 100gr | Impala LWHV LS 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.