Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 85gr | Barnes MPG FB bullet and 24 powders. The key underlying parameters are shown in the table above.
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% | 53,809 psi | 84% | 2871 fps | 97.8% |
| Accurate 5744 | <<locked>> | 86% | 54,331 psi | 85% | 2917 fps | 98.7% |
| Accurate No. 11 FS | <<locked>> | 90% | 56,347 psi | 88% | 2904 fps | 100% |
| ADI APS 450 | <<locked>> | 86% | 57,276 psi | 90% | 2195 fps | 100% |
| ADI AR 2205 | <<locked>> | 94% | 57,537 psi | 90% | 2828 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 42,670 psi | 67% | 2812 fps | 99.3% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 45,774 psi | 72% | 2805 fps | 97.2% |
| Hodgdon LilGun | <<locked>> | 86% | 57,696 psi | 90% | 2940 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 28,152 psi | 44% | 1696 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 39,581 psi | 62% | 2684 fps | 95.9% |
| IMR 4227ᴾ | <<locked>> | 100% | 55,158 psi | 86% | 2900 fps | 99.7% |
| Lovex D060 | <<locked>> | 94% | 57,014 psi | 89% | 2959 fps | 99% |
| Lovex D063 | <<locked>> | 90% | 57,551 psi | 90% | 2940 fps | 99.1% |
| Lovex S040 | <<locked>> | 86% | 55,869 psi | 88% | 2795 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 2861 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 39,508 psi | 62% | 2753 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 27,717 psi | 43% | 1739 fps | 100% |
| ReloadSwiss RS 36ᴾ | <<locked>> | 100% | 54,070 psi | 85% | 2933 fps | 99.6% |
| Shooters World Blackout | <<locked>> | 90% | 57,551 psi | 90% | 2940 fps | 99.1% |
| Shooters World Buffalo Rifle | <<locked>> | 94% | 57,014 psi | 89% | 2959 fps | 99% |
| Shooters World SOCOM | <<locked>> | 92% | 55,608 psi | 87% | 2890 fps | 99.2% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 48,022 psi | 75% | 2654 fps | 100% |
| Vihtavuori N110 | <<locked>> | 96% | 55,535 psi | 87% | 2828 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 43,076 psi | 68% | 2779 fps | 99.8% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 92% | 41,176 psi | 65% | 2664 fps | 95.2% |
| Accurate 5744 | <<locked>> | 80% | 45,136 psi | 71% | 2759 fps | 97.3% |
| Accurate No. 11 FS | <<locked>> | 80% | 40,582 psi | 64% | 2654 fps | 99% |
| ADI APS 450 | <<locked>> | 80% | 52,098 psi | 82% | 2123 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 38,000 psi | 60% | 2523 fps | 99.6% |
| ADI AR 2207 | <<locked>> | 86% | 27,920 psi | 44% | 2470 fps | 95.4% |
| Alliant Reloder-7 | <<locked>> | 94% | 38,363 psi | 60% | 2664 fps | 95.4% |
| Hodgdon LilGun | <<locked>> | 80% | 46,818 psi | 73% | 2799 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 20,871 psi | 33% | 1526 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 37,231 psi | 58% | 2635 fps | 95.1% |
| IMR 4227 | <<locked>> | 82% | 32,358 psi | 51% | 2477 fps | 95.5% |
| Lovex D060 | <<locked>> | 80% | 37,898 psi | 59% | 2608 fps | 95.3% |
| Lovex D063 | <<locked>> | 80% | 41,350 psi | 65% | 2674 fps | 96.5% |
| Lovex S040 | <<locked>> | 80% | 47,065 psi | 74% | 2674 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 29,660 psi | 46% | 2425 fps | 98% |
| Norma 200 | <<locked>> | 98% | 37,072 psi | 58% | 2703 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,305 psi | 32% | 1555 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 33,054 psi | 52% | 2543 fps | 95.6% |
| Shooters World Blackout | <<locked>> | 80% | 41,350 psi | 65% | 2674 fps | 96.5% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 37,898 psi | 59% | 2608 fps | 95.3% |
| Shooters World SOCOM | <<locked>> | 80% | 37,057 psi | 58% | 2572 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 28,369 psi | 44% | 2300 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 35,099 psi | 55% | 2510 fps | 100% |
| Vihtavuori N120 | <<locked>> | 82% | 25,338 psi | 40% | 2359 fps | 95.5% |
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 | 85gr | Barnes MPG FB. Lovex D060 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,959 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 43–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.277" calls for a 1:12.5 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.