Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 130gr | Remington PSP Core-Lokt bullet and 49 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 1680 | <<locked>> | 92% | 55,259 psi | 87% | 2349 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,526 psi | 68% | 2283 fps | 99.3% |
| Accurate 2460ᴾ | <<locked>> | 100% | 48,544 psi | 76% | 2372 fps | 97.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,010 psi | 50% | 2172 fps | 97.6% |
| Accurate 2520ᴾ | <<locked>> | 100% | 41,655 psi | 65% | 2313 fps | 96% |
| Accurate LT-30 | <<locked>> | 98% | 55,259 psi | 87% | 2346 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 98% | 55,811 psi | 87% | 2352 fps | 98.3% |
| ADI APS 450 | <<locked>> | 82% | 55,970 psi | 88% | 1736 fps | 100% |
| ADI AR 2205 | <<locked>> | 84% | 54,433 psi | 85% | 2224 fps | 100% |
| ADI AR 2207 | <<locked>> | 98% | 57,595 psi | 90% | 2425 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 56,304 psi | 88% | 2484 fps | 99.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,495 psi | 63% | 2310 fps | 100% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 50,546 psi | 79% | 2392 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 96% | 56,594 psi | 89% | 2402 fps | 100% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 56,681 psi | 89% | 2385 fps | 99.7% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,224 psi | 74% | 2297 fps | 95.7% |
| Hodgdon CFE BLK | <<locked>> | 84% | 56,304 psi | 88% | 2408 fps | 96.8% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 50,589 psi | 79% | 2415 fps | 99.1% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 51,227 psi | 80% | 2428 fps | 98.4% |
| Hodgdon H4198 | <<locked>> | 94% | 54,462 psi | 85% | 2352 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,009 psi | 49% | 1375 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,624 psi | 61% | 2287 fps | 97.8% |
| IMR 4198ᴾ | <<locked>> | 100% | 53,026 psi | 83% | 2372 fps | 100% |
| IMR 4227 | <<locked>> | 90% | 54,578 psi | 86% | 2320 fps | 100% |
| Lovex D060 | <<locked>> | 86% | 57,740 psi | 90% | 2392 fps | 100% |
| Lovex D073.4 | <<locked>> | 96% | 53,969 psi | 85% | 2441 fps | 98% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 48,414 psi | 76% | 2365 fps | 96.4% |
| Lovex S053 | <<locked>> | 92% | 55,521 psi | 87% | 2306 fps | 100% |
| Norma 200 | <<locked>> | 98% | 54,331 psi | 85% | 2418 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,044 psi | 61% | 2251 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,980 psi | 49% | 1411 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 92% | 57,188 psi | 90% | 2388 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 50,299 psi | 79% | 2388 fps | 97.3% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 43,381 psi | 68% | 2287 fps | 96.9% |
| Shooters World AR Plus | <<locked>> | 96% | 53,969 psi | 85% | 2441 fps | 98% |
| Shooters World Buffalo Rifle | <<locked>> | 86% | 57,740 psi | 90% | 2392 fps | 100% |
| Shooters World SOCOM | <<locked>> | 84% | 55,985 psi | 88% | 2336 fps | 100% |
| Shooters World Tactical Rifleᴾ | <<locked>> | 100% | 55,709 psi | 87% | 2405 fps | 96.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 56,739 psi | 89% | 2178 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2480 fps | 98.9% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 52,228 psi | 82% | 2402 fps | 99.7% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 43,453 psi | 68% | 2224 fps | 96.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 41,539 psi | 65% | 2228 fps | 97.5% |
| Vihtavuori N110 | <<locked>> | 86% | 55,303 psi | 87% | 2221 fps | 100% |
| Vihtavuori N120 | <<locked>> | 98% | 57,667 psi | 90% | 2379 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 48,994 psi | 77% | 2313 fps | 99.9% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 42,453 psi | 67% | 2234 fps | 99% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,737 psi | 54% | 2185 fps | 97.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,289 psi | 58% | 2192 fps | 95.7% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 37,521 psi | 59% | 2106 fps | 99% |
| Accurate 2015 | <<locked>> | 86% | 28,442 psi | 45% | 2008 fps | 95.7% |
| Accurate 2460 | <<locked>> | 92% | 37,188 psi | 58% | 2198 fps | 95.2% |
| Accurate 2495 | <<locked>> | 94% | 25,976 psi | 41% | 2041 fps | 95.4% |
| Accurate 2520 | <<locked>> | 98% | 38,957 psi | 61% | 2267 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 32,242 psi | 51% | 1991 fps | 95.1% |
| Accurate LT-32 | <<locked>> | 86% | 39,088 psi | 61% | 2113 fps | 95% |
| ADI APS 450 | <<locked>> | 80% | 54,433 psi | 85% | 1716 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 48,399 psi | 76% | 2156 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 33,228 psi | 52% | 2090 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 33,359 psi | 52% | 2126 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 82% | 23,583 psi | 37% | 1932 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,717 psi | 43% | 2001 fps | 96.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,679 psi | 54% | 2087 fps | 99% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 32,039 psi | 50% | 2021 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 98% | 44,353 psi | 70% | 2254 fps | 95% |
| Hodgdon CFE BLK | <<locked>> | 80% | 49,574 psi | 78% | 2316 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 88% | 34,708 psi | 54% | 2156 fps | 95.7% |
| Hodgdon H335 | <<locked>> | 90% | 37,246 psi | 58% | 2211 fps | 95.3% |
| Hodgdon H4198 | <<locked>> | 80% | 35,563 psi | 56% | 2064 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,902 psi | 36% | 1227 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 32,256 psi | 51% | 2159 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 29,907 psi | 47% | 1995 fps | 98.1% |
| IMR 4227 | <<locked>> | 80% | 40,654 psi | 64% | 2136 fps | 100% |
| Lovex D060 | <<locked>> | 80% | 48,863 psi | 77% | 2280 fps | 100% |
| Lovex D073.4 | <<locked>> | 88% | 40,466 psi | 63% | 2251 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 96% | 42,337 psi | 66% | 2280 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 39,566 psi | 62% | 2103 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,024 psi | 49% | 2060 fps | 98.5% |
| Norma 202 | <<locked>> | 98% | 36,651 psi | 57% | 2208 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,582 psi | 35% | 1253 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,784 psi | 62% | 2162 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 41,365 psi | 65% | 2257 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 94% | 36,332 psi | 57% | 2162 fps | 95% |
| Shooters World AR Plus | <<locked>> | 88% | 40,466 psi | 63% | 2251 fps | 95.3% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 48,863 psi | 77% | 2280 fps | 100% |
| Shooters World SOCOM | <<locked>> | 80% | 49,211 psi | 77% | 2257 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 98% | 51,401 psi | 81% | 2352 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,420 psi | 59% | 1949 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 37,695 psi | 59% | 2215 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,429 psi | 48% | 2037 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 38,522 psi | 60% | 2149 fps | 95.6% |
| Somchem S335 | <<locked>> | 94% | 34,389 psi | 54% | 2103 fps | 95.5% |
| Vihtavuori N110 | <<locked>> | 80% | 46,963 psi | 74% | 2129 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 33,446 psi | 52% | 2060 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 26,847 psi | 42% | 1929 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 86% | 28,137 psi | 44% | 1962 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 92% | 27,151 psi | 43% | 2018 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 98% | 34,998 psi | 55% | 2146 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 49 powders for 7 x 44 Penna loaded with the .277 | 130gr | Remington PSP Core-Lokt. ADI AR 2219 delivers the highest muzzle velocity at 2,484 fps; across all powders the maximum-charge window runs from 1,375 fps to 2,484 fps. Accurate 2015 gives the best case fill at 100 %, and 49 of the 49 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.277" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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.