Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 100gr | Hornady SP bullet and 27 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 SOCOM.
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% | 57,334 psi | 90% | 2674 fps | 99.2% |
| Accurate 5744 | <<locked>> | 86% | 57,464 psi | 90% | 2710 fps | 99.7% |
| Accurate No. 11 FS | <<locked>> | 88% | 56,275 psi | 88% | 2644 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 56,159 psi | 88% | 1972 fps | 100% |
| ADI AR 2205 | <<locked>> | 92% | 57,276 psi | 90% | 2572 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 46,383 psi | 73% | 2625 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 37,971 psi | 60% | 2500 fps | 96.4% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 49,690 psi | 78% | 2628 fps | 99% |
| Hodgdon H4198ᴾ | <<locked>> | 100% | 52,388 psi | 82% | 2608 fps | 95.7% |
| Hodgdon LilGun | <<locked>> | 82% | 54,549 psi | 85% | 2631 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,935 psi | 45% | 1539 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 42,032 psi | 66% | 2507 fps | 98% |
| IMR 4227 | <<locked>> | 98% | 55,564 psi | 87% | 2651 fps | 100% |
| Lovex D060 | <<locked>> | 92% | 57,464 psi | 90% | 2710 fps | 99.7% |
| Lovex D063 | <<locked>> | 88% | 57,479 psi | 90% | 2687 fps | 99.7% |
| Lovex S040 | <<locked>> | 84% | 55,593 psi | 87% | 2530 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 55,840 psi | 88% | 2644 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 43,598 psi | 68% | 2592 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,631 psi | 45% | 1581 fps | 100% |
| ReloadSwiss RS 36ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 2723 fps | 100% |
| Shooters World Blackout | <<locked>> | 88% | 57,479 psi | 90% | 2687 fps | 99.7% |
| Shooters World Buffalo Rifle | <<locked>> | 92% | 57,464 psi | 90% | 2710 fps | 99.7% |
| Shooters World SOCOM | <<locked>> | 90% | 54,926 psi | 86% | 2635 fps | 99.8% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 50,836 psi | 80% | 2438 fps | 100% |
| Vihtavuori N110 | <<locked>> | 94% | 56,420 psi | 88% | 2572 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 46,688 psi | 73% | 2585 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 37,565 psi | 59% | 2425 fps | 95.8% |
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>> | 86% | 35,897 psi | 56% | 2343 fps | 95.4% |
| Accurate 5744 | <<locked>> | 80% | 47,863 psi | 75% | 2566 fps | 98.9% |
| Accurate No. 11 FS | <<locked>> | 80% | 43,729 psi | 69% | 2470 fps | 99.9% |
| ADI APS 450 | <<locked>> | 80% | 52,228 psi | 82% | 1923 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 40,016 psi | 63% | 2333 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 25,309 psi | 40% | 2185 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 96% | 33,547 psi | 53% | 2408 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 86% | 32,460 psi | 51% | 2316 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 98% | 49,066 psi | 77% | 2559 fps | 95% |
| Hodgdon LilGun | <<locked>> | 80% | 50,952 psi | 80% | 2589 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,524 psi | 34% | 1385 fps | 100% |
| IMR 4198 | <<locked>> | 90% | 31,966 psi | 50% | 2297 fps | 95% |
| IMR 4227 | <<locked>> | 80% | 32,880 psi | 52% | 2274 fps | 97.3% |
| Lovex D060 | 17.6 gr | 80% | 40,263 psi | 63% | 2431 fps | 97.5% |
| Lovex D063 | <<locked>> | 80% | 44,454 psi | 70% | 2500 fps | 98.5% |
| Lovex S040 | <<locked>> | 80% | 49,719 psi | 78% | 2457 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 31,807 psi | 50% | 2257 fps | 99.4% |
| Norma 200 | <<locked>> | 90% | 31,546 psi | 49% | 2356 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,987 psi | 33% | 1414 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 31,183 psi | 49% | 2280 fps | 96.6% |
| Shooters World Blackout | <<locked>> | 80% | 44,454 psi | 70% | 2500 fps | 98.5% |
| Shooters World Buffalo Rifle | 17.6 gr | 80% | 40,263 psi | 63% | 2431 fps | 97.5% |
| Shooters World SOCOM | 19.7 gr | 80% | 39,871 psi | 62% | 2405 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 30,327 psi | 48% | 2123 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 37,333 psi | 59% | 2310 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 25,686 psi | 40% | 2169 fps | 97.4% |
| Vihtavuori N130 | <<locked>> | 98% | 35,172 psi | 55% | 2375 fps | 95% |
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 27 powders for 7 x 44 Penna loaded with the .277 | 100gr | Hornady SP. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,539 fps to 2,723 fps. Accurate 1680 gives the best case fill at 100 %, and 27 of the 27 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 100.0 gr projectile in 0.277" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 1680, ADI AR 2207, Alliant Reloder-10x 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 SOCOM rank at the top here: for 7 x 44 Penna with the .277 | 100gr | Hornady SP 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.