Load Specifications
Load data in caliber 7 x 49 GJW with .285 | 173gr | Prvi Partizan FMJ BT bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 3, SNPE Vectan BA6 1/2 and Baschieri & Pellagri 102 Pistol.
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>> | 64% | 50,546 psi | 79% | 1962 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 72% | 53,040 psi | 83% | 2064 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 55,883 psi | 88% | 1624 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 53,998 psi | 85% | 1621 fps | 100% |
| ADI AP 100² | <<locked>> | 72% | 53,272 psi | 83% | 1785 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 55,492 psi | 87% | 1565 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 56,086 psi | 88% | 1604 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 56,724 psi | 89% | 1614 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 56,333 psi | 88% | 1634 fps | 100% |
| Alliant 2400² | <<locked>> | 64% | 53,911 psi | 84% | 1988 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 54,694 psi | 86% | 1624 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 68% | 52,199 psi | 82% | 1896 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 56,275 psi | 88% | 1640 fps | 100% |
| Alliant Herco² | <<locked>> | 76% | 53,359 psi | 84% | 1699 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 68% | 57,406 psi | 90% | 2096 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 56,043 psi | 88% | 1627 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 64% | 53,911 psi | 84% | 1703 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 54,331 psi | 85% | 1578 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 54,969 psi | 86% | 1601 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 55,796 psi | 87% | 1621 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 55,172 psi | 86% | 1585 fps | 100% |
| Hodgdon H110² | <<locked>> | 64% | 51,039 psi | 80% | 2044 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 68% | 55,593 psi | 87% | 2051 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,446 psi | 52% | 1289 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 55,695 psi | 87% | 1663 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 51,880 psi | 81% | 2073 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 55,274 psi | 87% | 1631 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 55,927 psi | 88% | 1627 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 56,550 psi | 89% | 1640 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 57,290 psi | 90% | 1637 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 57,305 psi | 90% | 1611 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 64% | 55,579 psi | 87% | 1995 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,562 psi | 53% | 1322 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 53,635 psi | 84% | 1667 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 80% | 51,938 psi | 81% | 2047 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 68% | 52,997 psi | 83% | 1640 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 57,232 psi | 90% | 1660 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 64% | 53,461 psi | 84% | 1627 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 57,392 psi | 90% | 1617 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 57,145 psi | 90% | 1965 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 68% | 52,910 psi | 83% | 1716 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 57,406 psi | 90% | 1673 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 55,042 psi | 86% | 2218 fps | 100% |
| Somchem MS200² | <<locked>> | 64% | 52,663 psi | 83% | 1660 fps | 100% |
| Somchem S265 | <<locked>> | 80% | 56,231 psi | 88% | 2041 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 68% | 54,462 psi | 85% | 1847 fps | 100% |
| Vihtavuori N105² | <<locked>> | 68% | 56,202 psi | 88% | 1844 fps | 100% |
| Vihtavuori N110² | <<locked>> | 76% | 52,112 psi | 82% | 1965 fps | 100% |
| Vihtavuori N320² | <<locked>> | 64% | 54,027 psi | 85% | 1585 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 53,258 psi | 83% | 1509 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 54,853 psi | 86% | 1670 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 57,188 psi | 90% | 1752 fps | 100% |
| Winchester 296² | <<locked>> | 68% | 56,159 psi | 88% | 2152 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 68% | 54,433 psi | 85% | 1647 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% | 44,121 psi | 69% | 1886 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 35,201 psi | 55% | 1834 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 43,381 psi | 68% | 1480 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 44,512 psi | 70% | 1516 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 39,044 psi | 61% | 1617 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 38,392 psi | 60% | 1355 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 38,043 psi | 60% | 1381 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 41,031 psi | 64% | 1427 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 47,529 psi | 74% | 1535 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 47,456 psi | 74% | 1916 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 45,034 psi | 71% | 1519 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 41,423 psi | 65% | 1765 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 43,772 psi | 69% | 1493 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 37,057 psi | 58% | 1499 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 43,642 psi | 68% | 1939 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 40,799 psi | 64% | 1440 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 48,559 psi | 76% | 1640 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 44,947 psi | 70% | 1476 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 10.1 gr | 60% | 32,590 psi | 51% | 1335 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 50,328 psi | 79% | 1568 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 33,272 psi | 52% | 1302 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 44,657 psi | 70% | 1965 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 42,090 psi | 66% | 1903 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 17,042 psi | 27% | 991 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 50,937 psi | 80% | 1611 fps | 100% |
| IMR 4227² | <<locked>> | 60% | 27,528 psi | 43% | 1713 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 41,887 psi | 66% | 1476 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 46,673 psi | 73% | 1526 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 43,497 psi | 68% | 1490 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 44,672 psi | 70% | 1493 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 44,657 psi | 70% | 1463 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 48,501 psi | 76% | 1916 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 16,984 psi | 27% | 1014 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 48,936 psi | 77% | 1614 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 27,760 psi | 44% | 1713 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 44,208 psi | 69% | 1542 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 47,413 psi | 74% | 1555 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 48,443 psi | 76% | 1575 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 42,003 psi | 66% | 1437 fps | 100% |
| SNPE Vectan BA6 1/2² | 14.2 gr | 60% | 26,484 psi | 42% | 1572 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 43,439 psi | 68% | 1611 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 48,153 psi | 75% | 1575 fps | 100% |
| SNPE Vectan SP 3*² | 16.3 gr | 60% | 19,928 psi | 31% | 1601 fps | 94.1% |
| Somchem MS200² | <<locked>> | 60% | 48,051 psi | 75% | 1608 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 31,183 psi | 49% | 1709 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 43,439 psi | 68% | 1722 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 44,396 psi | 70% | 1719 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 32,198 psi | 50% | 1709 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 49,066 psi | 77% | 1532 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 26,469 psi | 41% | 1161 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 49,284 psi | 77% | 1611 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 46,499 psi | 73% | 1640 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 42,482 psi | 67% | 1985 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 45,063 psi | 71% | 1545 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 54 powders for 7 x 49 GJW loaded with the .285 | 173gr | Prvi Partizan FMJ BT. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,218 fps; across all powders the maximum-charge window runs from 1,289 fps to 2,218 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 12 of the 54 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 173.0 gr projectile in 0.285" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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. SNPE Vectan SP 3, SNPE Vectan BA6 1/2, Baschieri & Pellagri 102 Pistol rank at the top here: for 7 x 49 GJW with the .285 | 173gr | Prvi Partizan FMJ 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.