Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 173gr | Sellier & Bellot SPCE 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>> | 68% | 56,768 psi | 89% | 2021 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 72% | 52,185 psi | 82% | 2047 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 55,724 psi | 87% | 1614 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 53,809 psi | 84% | 1611 fps | 100% |
| ADI AP 100² | <<locked>> | 72% | 52,562 psi | 82% | 1772 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 55,347 psi | 87% | 1555 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 56,043 psi | 88% | 1594 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 56,565 psi | 89% | 1604 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 56,159 psi | 88% | 1624 fps | 100% |
| Alliant 2400² | <<locked>> | 64% | 53,374 psi | 84% | 1975 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 54,723 psi | 86% | 1617 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 68% | 51,619 psi | 81% | 1880 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 56,115 psi | 88% | 1631 fps | 100% |
| Alliant Herco² | <<locked>> | 76% | 53,330 psi | 84% | 1693 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 68% | 56,463 psi | 88% | 2080 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 55,854 psi | 88% | 1614 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 64% | 53,708 psi | 84% | 1693 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 54,172 psi | 85% | 1568 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 54,447 psi | 85% | 1591 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 55,492 psi | 87% | 1611 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 55,143 psi | 86% | 1575 fps | 100% |
| Hodgdon H110² | <<locked>> | 64% | 50,647 psi | 79% | 2031 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 68% | 55,143 psi | 86% | 2041 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,170 psi | 52% | 1280 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 55,535 psi | 87% | 1654 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 57,188 psi | 90% | 2123 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 55,158 psi | 86% | 1621 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 55,782 psi | 87% | 1617 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 56,434 psi | 88% | 1631 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 57,145 psi | 90% | 1627 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 57,174 psi | 90% | 1601 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 64% | 55,129 psi | 86% | 1982 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,315 psi | 52% | 1312 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 53,447 psi | 84% | 1657 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 84% | 57,101 psi | 89% | 2093 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 68% | 52,881 psi | 83% | 1631 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 56,608 psi | 89% | 1647 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 64% | 52,721 psi | 83% | 1614 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 57,377 psi | 90% | 1608 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 56,289 psi | 88% | 1949 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 68% | 52,881 psi | 83% | 1709 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 57,319 psi | 90% | 1663 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,331 psi | 85% | 2201 fps | 100% |
| Somchem MS200² | <<locked>> | 64% | 52,460 psi | 82% | 1650 fps | 100% |
| Somchem S265 | <<locked>> | 80% | 56,028 psi | 88% | 2031 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 68% | 53,766 psi | 84% | 1831 fps | 100% |
| Vihtavuori N105² | <<locked>> | 68% | 55,448 psi | 87% | 1831 fps | 100% |
| Vihtavuori N110² | <<locked>> | 76% | 51,663 psi | 81% | 1955 fps | 100% |
| Vihtavuori N320² | <<locked>> | 64% | 53,780 psi | 84% | 1575 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 53,287 psi | 84% | 1503 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 54,708 psi | 86% | 1660 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 57,159 psi | 90% | 1745 fps | 100% |
| Winchester 296² | <<locked>> | 68% | 55,187 psi | 86% | 2133 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 68% | 53,824 psi | 84% | 1634 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% | 43,613 psi | 68% | 1877 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 34,795 psi | 55% | 1821 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 43,062 psi | 67% | 1467 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 44,164 psi | 69% | 1506 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 38,754 psi | 61% | 1608 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 37,985 psi | 60% | 1342 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 37,724 psi | 59% | 1368 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 41,263 psi | 65% | 1421 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 47,210 psi | 74% | 1522 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 46,862 psi | 73% | 1903 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 44,904 psi | 70% | 1512 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 41,278 psi | 65% | 1755 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 44,063 psi | 69% | 1490 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 36,796 psi | 58% | 1490 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 43,221 psi | 68% | 1929 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 40,393 psi | 63% | 1427 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 48,269 psi | 76% | 1631 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 44,657 psi | 70% | 1463 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 10 gr | 60% | 32,793 psi | 51% | 1332 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 49,951 psi | 78% | 1555 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,909 psi | 52% | 1293 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 44,222 psi | 69% | 1952 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 41,597 psi | 65% | 1890 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 16,969 psi | 27% | 984 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 50,691 psi | 79% | 1601 fps | 100% |
| IMR 4227² | <<locked>> | 60% | 27,079 psi | 42% | 1696 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 41,582 psi | 65% | 1467 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 46,369 psi | 73% | 1516 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 43,787 psi | 69% | 1486 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 44,338 psi | 69% | 1483 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 44,324 psi | 69% | 1453 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 47,993 psi | 75% | 1906 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 16,911 psi | 27% | 1007 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 48,704 psi | 76% | 1604 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 27,224 psi | 43% | 1699 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 43,932 psi | 69% | 1532 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 47,297 psi | 74% | 1545 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 48,269 psi | 76% | 1565 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 41,727 psi | 65% | 1424 fps | 100% |
| SNPE Vectan BA6 1/2² | 13.9 gr | 60% | 25,962 psi | 41% | 1558 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 42,714 psi | 67% | 1594 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 47,921 psi | 75% | 1565 fps | 100% |
| SNPE Vectan SP 3*² | 16 gr | 60% | 19,566 psi | 31% | 1581 fps | 93.6% |
| Somchem MS200² | <<locked>> | 60% | 47,805 psi | 75% | 1598 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 31,111 psi | 49% | 1703 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 43,294 psi | 68% | 1716 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 44,179 psi | 69% | 1709 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 31,618 psi | 50% | 1696 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 48,776 psi | 76% | 1522 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 26,107 psi | 41% | 1148 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 49,037 psi | 77% | 1601 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 46,282 psi | 73% | 1634 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 42,032 psi | 66% | 1975 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 44,382 psi | 70% | 1529 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 .284 | 173gr | Sellier & Bellot SPCE. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,201 fps; across all powders the maximum-charge window runs from 1,280 fps to 2,201 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 0.284" calls for a 1:11.5 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 .284 | 173gr | Sellier & Bellot SPCE 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.