Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 110gr | Barnes TSX BT bullet and 32 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 ReloadSwiss RS 36.
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>> | 98% | 56,217 psi | 88% | 2543 fps | 99.6% |
| Accurate 5744 | <<locked>> | 84% | 55,622 psi | 87% | 2559 fps | 99.9% |
| Accurate LT-30ᴾ | <<locked>> | 100% | 49,313 psi | 77% | 2438 fps | 96.9% |
| Accurate No. 11 FS | <<locked>> | 86% | 54,810 psi | 86% | 2500 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 56,942 psi | 89% | 1880 fps | 100% |
| ADI AR 2205 | <<locked>> | 90% | 56,086 psi | 88% | 2434 fps | 100% |
| ADI AR 2207ᴾ | <<locked>> | 100% | 48,805 psi | 76% | 2533 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 45,455 psi | 71% | 2503 fps | 95.8% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 32,343 psi | 51% | 2310 fps | 96.7% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 39,827 psi | 62% | 2425 fps | 98% |
| Alliant Reloder-7ᴾ | <<locked>> | 100% | 52,025 psi | 82% | 2539 fps | 99.7% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 46,601 psi | 73% | 2428 fps | 96.7% |
| Hodgdon H4198ᴾ | <<locked>> | 100% | 54,752 psi | 86% | 2526 fps | 97.3% |
| Hodgdon LilGun | <<locked>> | 82% | 56,753 psi | 89% | 2520 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 29,124 psi | 46% | 1467 fps | 100% |
| IMR 4198ᴾ | <<locked>> | 100% | 43,656 psi | 68% | 2425 fps | 99.1% |
| IMR 4227 | <<locked>> | 96% | 54,766 psi | 86% | 2516 fps | 100% |
| Lovex D060 | <<locked>> | 90% | 55,622 psi | 87% | 2559 fps | 99.9% |
| Lovex D063 | <<locked>> | 86% | 55,912 psi | 88% | 2543 fps | 99.9% |
| Lovex S040 | <<locked>> | 82% | 54,679 psi | 86% | 2392 fps | 100% |
| Lovex S053 | <<locked>> | 98% | 55,027 psi | 86% | 2503 fps | 100% |
| Norma 200ᴾ | <<locked>> | 100% | 45,150 psi | 71% | 2500 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 28,834 psi | 45% | 1503 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 98% | 56,608 psi | 89% | 2582 fps | 100% |
| Shooters World Blackout | <<locked>> | 86% | 55,912 psi | 88% | 2543 fps | 99.9% |
| Shooters World Buffalo Rifle | <<locked>> | 90% | 55,622 psi | 87% | 2559 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 90% | 57,363 psi | 90% | 2543 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 53,171 psi | 83% | 2339 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 42,177 psi | 66% | 2428 fps | 96.2% |
| Vihtavuori N110 | <<locked>> | 92% | 55,056 psi | 86% | 2428 fps | 100% |
| Vihtavuori N120ᴾ | <<locked>> | 100% | 49,124 psi | 77% | 2493 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 39,334 psi | 62% | 2349 fps | 97.4% |
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>> | 82% | 32,880 psi | 52% | 2182 fps | 95.7% |
| Accurate 5744 | <<locked>> | 80% | 49,298 psi | 77% | 2470 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 94% | 40,756 psi | 64% | 2306 fps | 95% |
| Accurate No. 11 FS | <<locked>> | 80% | 45,237 psi | 71% | 2375 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 52,910 psi | 83% | 1831 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 41,510 psi | 65% | 2244 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 26,237 psi | 41% | 2116 fps | 97.6% |
| ADI AR 2219 | <<locked>> | 98% | 42,409 psi | 66% | 2454 fps | 95% |
| Alliant AR-Comp | <<locked>> | 96% | 28,631 psi | 45% | 2215 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 92% | 31,241 psi | 49% | 2254 fps | 95.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 29,501 psi | 46% | 2149 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 40,915 psi | 64% | 2339 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 94% | 45,252 psi | 71% | 2392 fps | 95.4% |
| Hodgdon LilGun | <<locked>> | 80% | 52,881 psi | 83% | 2477 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 21,466 psi | 34% | 1312 fps | 100% |
| IMR 4198 | <<locked>> | 86% | 29,443 psi | 46% | 2139 fps | 95.4% |
| IMR 4227 | <<locked>> | 80% | 33,750 psi | 53% | 2188 fps | 98.4% |
| Lovex D060 | 17.4 gr | 80% | 41,843 psi | 66% | 2349 fps | 98.7% |
| Lovex D063 | <<locked>> | 80% | 46,064 psi | 72% | 2408 fps | 99.3% |
| Lovex S040 | <<locked>> | 80% | 51,619 psi | 81% | 2356 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 32,924 psi | 52% | 2175 fps | 99.9% |
| Norma 200 | <<locked>> | 86% | 28,732 psi | 45% | 2188 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 20,929 psi | 33% | 1342 fps | 100% |
| ReloadSwiss RS 36 | 18.1 gr | 80% | 32,576 psi | 51% | 2208 fps | 98% |
| Shooters World Blackout | <<locked>> | 80% | 46,064 psi | 72% | 2408 fps | 99.3% |
| Shooters World Buffalo Rifle | 17.4 gr | 80% | 41,843 psi | 66% | 2349 fps | 98.7% |
| Shooters World SOCOM | <<locked>> | 80% | 41,220 psi | 65% | 2320 fps | 99.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 30,835 psi | 48% | 2028 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 39,378 psi | 62% | 2379 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 38,682 psi | 61% | 2215 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 26,643 psi | 42% | 2096 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 94% | 32,343 psi | 51% | 2218 fps | 95.4% |
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 | 110gr | Barnes TSX BT. Hodgdon CFE BLK delivers the highest muzzle velocity at 2,595 fps; across all powders the maximum-charge window runs from 1,467 fps to 2,595 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 110.0 gr projectile in 0.277" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate LT-30 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, ReloadSwiss RS 36 rank at the top here: for 7 x 44 Penna with the .277 | 110gr | Barnes TSX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2015, Accurate 2460, Accurate LT-32 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.