Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 174gr | Prvi Partizan PSP BT 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, SNPE Vectan SP 3 and SNPE Vectan BA6 1/2.
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 ≥ 60% and propellant combustion ≥ 80%. 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 4100² | <<locked>> | 68% | 56,130 psi | 88% | 1995 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 72% | 51,663 psi | 81% | 2024 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 55,550 psi | 87% | 1594 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 53,606 psi | 84% | 1594 fps | 100% |
| ADI AP 100² | <<locked>> | 76% | 57,450 psi | 90% | 1804 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 55,172 psi | 86% | 1535 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 56,028 psi | 88% | 1575 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 56,391 psi | 88% | 1585 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 55,941 psi | 88% | 1604 fps | 100% |
| Alliant 2400² | <<locked>> | 64% | 52,431 psi | 82% | 1949 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 54,186 psi | 85% | 1594 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 72% | 56,971 psi | 89% | 1919 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 55,927 psi | 88% | 1611 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 57,334 psi | 90% | 1716 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 68% | 55,883 psi | 88% | 2057 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 55,593 psi | 87% | 1594 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 64% | 52,765 psi | 83% | 1663 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 54,012 psi | 85% | 1549 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 54,650 psi | 86% | 1575 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 55,361 psi | 87% | 1594 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 55,129 psi | 86% | 1558 fps | 100% |
| Hodgdon H110² | <<locked>> | 68% | 57,232 psi | 90% | 2083 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 68% | 53,824 psi | 84% | 2011 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,301 psi | 52% | 1266 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 55,361 psi | 87% | 1634 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 56,768 psi | 89% | 2100 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 54,360 psi | 85% | 1594 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 55,622 psi | 87% | 1601 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 56,289 psi | 88% | 1611 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 57,014 psi | 89% | 1608 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 57,000 psi | 89% | 1581 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 64% | 54,317 psi | 85% | 1955 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,938 psi | 52% | 1293 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 53,287 psi | 84% | 1637 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 84% | 55,854 psi | 88% | 2064 fps | 100% |
| Shooters World AR Plus | <<locked>> | 88% | 51,735 psi | 81% | 2234 fps | 99.7% |
| SNPE Vectan A0² | <<locked>> | 72% | 57,667 psi | 90% | 1663 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 56,739 psi | 89% | 1631 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 64% | 52,678 psi | 83% | 1598 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 57,406 psi | 90% | 1591 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 55,753 psi | 87% | 1929 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 72% | 57,682 psi | 90% | 1739 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 57,276 psi | 90% | 1647 fps | 100% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2156 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 57,290 psi | 90% | 1680 fps | 100% |
| Somchem S265 | <<locked>> | 80% | 54,998 psi | 86% | 2001 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 64% | 57,493 psi | 90% | 1742 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 68% | 53,258 psi | 83% | 1808 fps | 100% |
| Vihtavuori N105² | <<locked>> | 68% | 54,824 psi | 86% | 1808 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 57,319 psi | 90% | 1995 fps | 100% |
| Vihtavuori N320² | <<locked>> | 64% | 53,490 psi | 84% | 1555 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 53,403 psi | 84% | 1486 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 54,563 psi | 86% | 1640 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 56,492 psi | 89% | 1722 fps | 100% |
| Winchester 296² | <<locked>> | 68% | 54,607 psi | 86% | 2110 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 68% | 53,940 psi | 85% | 1617 fps | 100% |
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 4100² | <<locked>> | 60% | 42,801 psi | 67% | 1847 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 34,069 psi | 53% | 1795 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 43,221 psi | 68% | 1453 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 44,425 psi | 70% | 1493 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 38,493 psi | 60% | 1588 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 38,000 psi | 60% | 1325 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 37,840 psi | 59% | 1355 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 40,727 psi | 64% | 1398 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 46,789 psi | 73% | 1503 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 46,398 psi | 73% | 1880 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 44,744 psi | 70% | 1493 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 40,640 psi | 64% | 1732 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 43,598 psi | 68% | 1467 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 36,985 psi | 58% | 1476 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 42,453 psi | 67% | 1903 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 40,408 psi | 63% | 1411 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 47,906 psi | 75% | 1608 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 44,918 psi | 70% | 1453 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 32,489 psi | 51% | 1316 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 50,227 psi | 79% | 1542 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,909 psi | 52% | 1276 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 43,424 psi | 68% | 1926 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 41,234 psi | 65% | 1870 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 17,085 psi | 27% | 978 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 50,401 psi | 79% | 1581 fps | 100% |
| IMR 4227² | <<locked>> | 60% | 26,701 psi | 42% | 1673 fps | 99.9% |
| Maxam CSB 1² | <<locked>> | 60% | 41,785 psi | 65% | 1453 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 45,992 psi | 72% | 1496 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 43,352 psi | 68% | 1463 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 43,888 psi | 69% | 1460 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 44,498 psi | 70% | 1440 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 47,688 psi | 75% | 1886 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 17,027 psi | 27% | 1001 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 48,428 psi | 76% | 1585 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 26,701 psi | 42% | 1677 fps | 100% |
| Shooters World AR Plus*² | 17.1 gr | 60% | 19,653 psi | 31% | 1617 fps | 88.6% |
| SNPE Vectan A0² | <<locked>> | 60% | 43,613 psi | 68% | 1512 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 46,572 psi | 73% | 1522 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 47,500 psi | 74% | 1539 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 41,365 psi | 65% | 1404 fps | 100% |
| SNPE Vectan BA6 1/2² | 13.5 gr | 60% | 25,469 psi | 40% | 1535 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 42,540 psi | 67% | 1578 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 47,645 psi | 75% | 1545 fps | 100% |
| SNPE Vectan SP 3*² | 15.6 gr | 60% | 16,230 psi | 25% | 1447 fps | 91.3% |
| Somchem MS200² | <<locked>> | 60% | 47,500 psi | 74% | 1578 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 30,777 psi | 48% | 1680 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 51,256 psi | 80% | 1680 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 42,569 psi | 67% | 1690 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 43,395 psi | 68% | 1686 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 31,053 psi | 49% | 1673 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 49,066 psi | 77% | 1509 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 26,034 psi | 41% | 1135 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 48,776 psi | 76% | 1581 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 45,426 psi | 71% | 1608 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 41,234 psi | 65% | 1946 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 44,251 psi | 69% | 1512 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
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 49 GJW loaded with the .284 | 174gr | Prvi Partizan PSP BT. Shooters World AR Plus delivers the highest muzzle velocity at 2,234 fps; across all powders the maximum-charge window runs from 1,266 fps to 2,234 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 15 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 52–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan SP 3 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, SNPE Vectan SP 3, SNPE Vectan BA6 1/2 rank at the top here: for 7 x 49 GJW with the .284 | 174gr | Prvi Partizan PSP BT they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14 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.