Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 100gr | Remington PSP bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 5744, Shooters World Buffalo Rifle and Lovex D060.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 98% | 54,679 psi | 86% | 2657 fps | 99.1% |
| Accurate 5744 | <<locked>> | 88% | 55,448 psi | 87% | 2697 fps | 99.7% |
| Accurate LT-30ᴾ | <<locked>> | 100% | 48,356 psi | 76% | 2552 fps | 95.8% |
| Accurate No. 11 FS | <<locked>> | 86% | 54,273 psi | 85% | 2635 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 56,579 psi | 89% | 1991 fps | 100% |
| ADI AR 2205 | <<locked>> | 90% | 55,201 psi | 87% | 2562 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 47,935 psi | 75% | 2661 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 39,262 psi | 62% | 2539 fps | 97% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 51,068 psi | 80% | 2661 fps | 99.2% |
| Hodgdon LilGun | <<locked>> | 82% | 55,869 psi | 88% | 2657 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,095 psi | 46% | 1555 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 43,265 psi | 68% | 2546 fps | 98.5% |
| IMR 4227 | <<locked>> | 98% | 57,276 psi | 90% | 2687 fps | 100% |
| Lovex D060 | <<locked>> | 90% | 54,752 psi | 86% | 2687 fps | 99.6% |
| Lovex D063 | <<locked>> | 90% | 56,391 psi | 88% | 2667 fps | 99.9% |
| Lovex S040 | <<locked>> | 84% | 56,913 psi | 89% | 2559 fps | 100% |
| Lovex S053ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2677 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 44,933 psi | 70% | 2628 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,805 psi | 45% | 1594 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 56,231 psi | 88% | 2720 fps | 100% |
| Shooters World Blackout | <<locked>> | 86% | 55,245 psi | 87% | 2674 fps | 99.7% |
| Shooters World Buffalo Rifle | <<locked>> | 90% | 54,752 psi | 86% | 2687 fps | 99.6% |
| Shooters World SOCOM | <<locked>> | 90% | 56,391 psi | 88% | 2667 fps | 99.9% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 51,880 psi | 81% | 2464 fps | 100% |
| Vihtavuori N110 | <<locked>> | 94% | 57,682 psi | 90% | 2598 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 48,153 psi | 75% | 2618 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 38,769 psi | 61% | 2461 fps | 96.4% |
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>> | 84% | 34,722 psi | 54% | 2333 fps | 95.3% |
| Accurate 5744 | 18.5 gr | 80% | 43,468 psi | 68% | 2507 fps | 98.4% |
| Accurate LT-30 | <<locked>> | 98% | 45,368 psi | 71% | 2503 fps | 95.1% |
| Accurate No. 11 FS | <<locked>> | 80% | 44,701 psi | 70% | 2500 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 52,765 psi | 83% | 1942 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 40,930 psi | 64% | 2362 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 26,107 psi | 41% | 2221 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 96% | 34,780 psi | 55% | 2451 fps | 95.7% |
| Alliant Reloder-7 | <<locked>> | 86% | 33,228 psi | 52% | 2346 fps | 95.6% |
| Hodgdon LilGun | <<locked>> | 80% | 52,141 psi | 82% | 2615 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,379 psi | 34% | 1388 fps | 100% |
| IMR 4198 | <<locked>> | 90% | 32,706 psi | 51% | 2329 fps | 95.6% |
| IMR 4227 | <<locked>> | 80% | 33,431 psi | 52% | 2300 fps | 97.6% |
| Lovex D060 | 18.1 gr | 80% | 41,307 psi | 65% | 2467 fps | 97.9% |
| Lovex D063 | <<locked>> | 80% | 40,683 psi | 64% | 2434 fps | 98.4% |
| Lovex S040 | <<locked>> | 80% | 50,328 psi | 79% | 2477 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 32,358 psi | 51% | 2280 fps | 99.6% |
| Norma 200 | <<locked>> | 88% | 30,647 psi | 48% | 2346 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,900 psi | 33% | 1417 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 32,097 psi | 50% | 2313 fps | 97.1% |
| Shooters World Blackout | <<locked>> | 80% | 45,411 psi | 71% | 2530 fps | 98.8% |
| Shooters World Buffalo Rifle | 18.1 gr | 80% | 41,307 psi | 65% | 2467 fps | 97.9% |
| Shooters World SOCOM | <<locked>> | 80% | 40,683 psi | 64% | 2434 fps | 98.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 30,995 psi | 49% | 2146 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 38,653 psi | 61% | 2343 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 26,498 psi | 42% | 2201 fps | 97.9% |
| Vihtavuori N130 | <<locked>> | 96% | 34,432 psi | 54% | 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 | Remington PSP. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,720 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,720 fps. Accurate LT-30 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 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate LT-30, 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. Accurate 5744, Shooters World Buffalo Rifle, Lovex D060 rank at the top here: for 7 x 44 Penna with the .277 | 100gr | Remington PSP 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.