Load Specifications
Load data in caliber 7 x 44 Penna with .277 | 150gr | Speer Hot-Cor bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Shooters World AR Plus, Lovex D073.4 and ADI AR 2219.
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>> | 92% | 56,159 psi | 88% | 2136 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 44,440 psi | 70% | 2083 fps | 99.7% |
| Accurate 2460ᴾ | <<locked>> | 100% | 49,037 psi | 77% | 2159 fps | 98.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,619 psi | 51% | 1985 fps | 98.5% |
| Accurate 2520ᴾ | <<locked>> | 100% | 42,235 psi | 66% | 2110 fps | 97% |
| Accurate LT-30 | <<locked>> | 98% | 55,840 psi | 88% | 2133 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 98% | 56,405 psi | 88% | 2139 fps | 98.9% |
| ADI APS 450 | <<locked>> | 82% | 56,782 psi | 89% | 1565 fps | 100% |
| ADI AR 2205 | <<locked>> | 84% | 55,230 psi | 87% | 2014 fps | 100% |
| ADI AR 2207 | <<locked>> | 96% | 54,563 psi | 86% | 2162 fps | 100% |
| ADI AR 2219ᴾ | <<locked>> | 100% | 57,232 psi | 90% | 2264 fps | 99.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,466 psi | 65% | 2110 fps | 100% |
| Alliant Power Pro 1200-Rᴾ | <<locked>> | 100% | 50,256 psi | 79% | 2244 fps | 96.3% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 51,227 psi | 80% | 2172 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 96% | 57,000 psi | 89% | 2175 fps | 100% |
| Baschieri & Pellagri 106ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2172 fps | 99.9% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 47,805 psi | 75% | 2093 fps | 96.7% |
| Hodgdon CFE BLK | <<locked>> | 84% | 57,508 psi | 90% | 2195 fps | 97.7% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 50,894 psi | 80% | 2195 fps | 99.5% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 51,924 psi | 81% | 2215 fps | 99% |
| Hodgdon H4198 | <<locked>> | 94% | 55,129 psi | 86% | 2136 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,488 psi | 49% | 1237 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 38,986 psi | 61% | 2087 fps | 98.7% |
| IMR 4198ᴾ | <<locked>> | 100% | 53,519 psi | 84% | 2149 fps | 100% |
| IMR 4227 | <<locked>> | 90% | 55,216 psi | 87% | 2100 fps | 100% |
| Lovex D060 | <<locked>> | 84% | 55,448 psi | 87% | 2136 fps | 100% |
| Lovex D073.4 | <<locked>> | 96% | 54,897 psi | 86% | 2224 fps | 98.7% |
| Lovex D073.5ᴾ | <<locked>> | 100% | 49,226 psi | 77% | 2162 fps | 97.4% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 37,246 psi | 58% | 2047 fps | 95.7% |
| Lovex S053 | <<locked>> | 92% | 56,927 psi | 89% | 2093 fps | 100% |
| Norma 200 | <<locked>> | 98% | 55,419 psi | 87% | 2198 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 39,668 psi | 62% | 2054 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,995 psi | 49% | 1263 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 90% | 55,245 psi | 87% | 2136 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 50,908 psi | 80% | 2178 fps | 98.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 44,135 psi | 69% | 2087 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 96% | 54,897 psi | 86% | 2224 fps | 98.7% |
| Shooters World Buffalo Rifle | <<locked>> | 84% | 55,448 psi | 87% | 2136 fps | 100% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 37,246 psi | 58% | 2047 fps | 95.7% |
| Shooters World SOCOM | <<locked>> | 84% | 56,898 psi | 89% | 2119 fps | 100% |
| Shooters World Tactical Rifleᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2195 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 96% | 57,479 psi | 90% | 1965 fps | 100% |
| SNPE Vectan SP 10ᴾ | <<locked>> | 100% | 56,768 psi | 89% | 2260 fps | 99.4% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 52,997 psi | 83% | 2182 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 44,077 psi | 69% | 2028 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,346 psi | 55% | 1913 fps | 96.7% |
| Somchem S321ᴾ | <<locked>> | 100% | 47,732 psi | 75% | 2162 fps | 96.5% |
| Somchem S335ᴾ | <<locked>> | 100% | 42,105 psi | 66% | 2028 fps | 98.3% |
| Vihtavuori N110 | <<locked>> | 86% | 56,652 psi | 89% | 2011 fps | 100% |
| Vihtavuori N120 | <<locked>> | 96% | 54,679 psi | 86% | 2119 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 49,661 psi | 78% | 2103 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 43,047 psi | 67% | 2034 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,317 psi | 55% | 1998 fps | 98.8% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 37,855 psi | 59% | 2001 fps | 96.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 36,347 psi | 57% | 1991 fps | 95.8% |
| Winchester 748ᴾ | <<locked>> | 100% | 42,902 psi | 67% | 2116 fps | 95.9% |
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>> | 80% | 38,189 psi | 60% | 1919 fps | 99.5% |
| Accurate 2015 | <<locked>> | 82% | 25,657 psi | 40% | 1765 fps | 95.5% |
| Accurate 2460 | <<locked>> | 90% | 35,433 psi | 56% | 1969 fps | 95.7% |
| Accurate 2495 | <<locked>> | 90% | 23,569 psi | 37% | 1801 fps | 95.4% |
| Accurate 2520 | <<locked>> | 94% | 34,780 psi | 55% | 1995 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 32,967 psi | 52% | 1818 fps | 96.4% |
| Accurate LT-32 | <<locked>> | 84% | 37,391 psi | 59% | 1890 fps | 95.5% |
| ADI APS 450 | <<locked>> | 80% | 54,201 psi | 85% | 1539 fps | 100% |
| ADI AR 2205 | <<locked>> | 80% | 49,197 psi | 77% | 1952 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 33,823 psi | 53% | 1900 fps | 100% |
| ADI AR 2219 | 18.3 gr | 82% | 31,589 psi | 50% | 1900 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 22,698 psi | 36% | 1736 fps | 96.4% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 46,702 psi | 73% | 2198 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,920 psi | 44% | 1818 fps | 97.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,534 psi | 56% | 1903 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,516 psi | 48% | 1804 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 96% | 42,801 psi | 67% | 2024 fps | 95.6% |
| Hodgdon CFE BLK | <<locked>> | 80% | 50,618 psi | 79% | 2113 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 84% | 31,125 psi | 49% | 1890 fps | 95.5% |
| Hodgdon H335 | <<locked>> | 86% | 33,127 psi | 52% | 1936 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 36,361 psi | 57% | 1883 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,945 psi | 36% | 1099 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 28,921 psi | 45% | 1893 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 30,443 psi | 48% | 1818 fps | 98.9% |
| IMR 4227 | <<locked>> | 80% | 41,553 psi | 65% | 1942 fps | 100% |
| Lovex D060 | <<locked>> | 80% | 49,414 psi | 77% | 2067 fps | 100% |
| Lovex D073.4 | 19.5 gr | 84% | 35,969 psi | 56% | 1972 fps | 95% |
| Lovex D073.5 | <<locked>> | 94% | 40,030 psi | 63% | 2037 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 98% | 35,114 psi | 55% | 2011 fps | 95% |
| Lovex S053 | <<locked>> | 80% | 40,263 psi | 63% | 1906 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,502 psi | 49% | 1877 fps | 99.2% |
| Norma 202 | <<locked>> | 94% | 32,953 psi | 52% | 1942 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,221 psi | 36% | 1135 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 40,828 psi | 64% | 1969 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 37,086 psi | 58% | 1985 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 92% | 34,737 psi | 54% | 1936 fps | 95.5% |
| Shooters World AR Plus | 19.5 gr | 84% | 35,969 psi | 56% | 1972 fps | 95% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 49,414 psi | 77% | 2067 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 98% | 35,114 psi | 55% | 2011 fps | 95% |
| Shooters World SOCOM | <<locked>> | 80% | 49,951 psi | 78% | 2047 fps | 100% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 45,890 psi | 72% | 2070 fps | 95% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,753 psi | 59% | 1759 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 33,663 psi | 53% | 1942 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 29,037 psi | 46% | 1818 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 34,316 psi | 54% | 1880 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 31,502 psi | 49% | 1844 fps | 95.4% |
| Somchem S321 | <<locked>> | 96% | 41,887 psi | 66% | 2083 fps | 95.2% |
| Somchem S335 | <<locked>> | 90% | 31,328 psi | 49% | 1854 fps | 95.5% |
| Vihtavuori N110 | <<locked>> | 80% | 47,195 psi | 74% | 1919 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 34,040 psi | 53% | 1870 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,412 psi | 43% | 1762 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 84% | 26,861 psi | 42% | 1755 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 88% | 24,685 psi | 39% | 1778 fps | 95% |
| Vihtavuori N140 | <<locked>> | 96% | 33,837 psi | 53% | 1932 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 98% | 34,389 psi | 54% | 1959 fps | 95.2% |
| Winchester 748 | <<locked>> | 98% | 39,987 psi | 63% | 2070 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 56 powders for 7 x 44 Penna loaded with the .277 | 150gr | Speer Hot-Cor. ADI AR 2219 delivers the highest muzzle velocity at 2,264 fps; across all powders the maximum-charge window runs from 1,237 fps to 2,264 fps. Accurate 2015 gives the best case fill at 100 %, and 56 of the 56 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 150.0 gr projectile in 0.277" calls for a 1:12.0 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. Shooters World AR Plus, Lovex D073.4, ADI AR 2219 rank at the top here: for 7 x 44 Penna with the .277 | 150gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.