Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 160gr | Barnes TSX FB bullet and 58 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, ReloadSwiss RS 30 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% | 51,387 psi | 81% | 2034 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 76% | 53,040 psi | 83% | 2129 fps | 100% |
| Accurate No. 2² | <<locked>> | 64% | 56,840 psi | 89% | 1732 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 54,099 psi | 85% | 1637 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 56,289 psi | 88% | 1683 fps | 100% |
| ADI AP 100² | <<locked>> | 76% | 54,940 psi | 86% | 1854 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 54,911 psi | 86% | 1585 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 55,187 psi | 86% | 1621 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 55,013 psi | 86% | 1624 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 54,317 psi | 85% | 1644 fps | 100% |
| Alliant 2400² | <<locked>> | 68% | 54,766 psi | 86% | 2064 fps | 100% |
| Alliant BE-86² | <<locked>> | 72% | 57,551 psi | 90% | 1690 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 72% | 53,345 psi | 84% | 1969 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 55,071 psi | 86% | 1660 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 54,795 psi | 86% | 1759 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 72% | 56,956 psi | 89% | 2162 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 54,795 psi | 86% | 1644 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 56,362 psi | 88% | 1772 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 56,942 psi | 89% | 1637 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 56,898 psi | 89% | 1654 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 53,824 psi | 84% | 1637 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 54,302 psi | 85% | 1601 fps | 100% |
| Hodgdon H110² | <<locked>> | 68% | 51,314 psi | 80% | 2116 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 72% | 55,274 psi | 87% | 2123 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,242 psi | 51% | 1302 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 53,388 psi | 84% | 1677 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 57,334 psi | 90% | 2195 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 57,711 psi | 90% | 1690 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 53,722 psi | 84% | 1640 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 54,665 psi | 86% | 1654 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 55,506 psi | 87% | 1650 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 55,709 psi | 87% | 1621 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 68% | 56,579 psi | 89% | 2070 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,691 psi | 50% | 1329 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 56,231 psi | 88% | 1736 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 88% | 56,405 psi | 88% | 2165 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 72% | 55,782 psi | 87% | 1709 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 54,737 psi | 86% | 1670 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 55,883 psi | 88% | 1690 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 56,594 psi | 89% | 1634 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 56,246 psi | 88% | 2021 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 72% | 55,579 psi | 87% | 1788 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 55,521 psi | 87% | 1693 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,518 psi | 82% | 2254 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 57,493 psi | 90% | 1772 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 55,303 psi | 87% | 1726 fps | 100% |
| Somchem S265 | <<locked>> | 84% | 56,072 psi | 88% | 2100 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 64% | 54,375 psi | 85% | 1785 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 72% | 55,825 psi | 87% | 1916 fps | 100% |
| Vihtavuori N105² | <<locked>> | 72% | 57,305 psi | 90% | 1913 fps | 100% |
| Vihtavuori N110 | <<locked>> | 84% | 57,580 psi | 90% | 2087 fps | 100% |
| Vihtavuori N320² | <<locked>> | 68% | 57,174 psi | 90% | 1650 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 51,706 psi | 81% | 1522 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 57,101 psi | 89% | 1690 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 52,373 psi | 82% | 1686 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 54,041 psi | 85% | 1768 fps | 100% |
| Winchester 296² | <<locked>> | 72% | 56,043 psi | 88% | 2221 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 57,014 psi | 89% | 1713 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% | 39,044 psi | 61% | 1883 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 30,574 psi | 48% | 1818 fps | 100% |
| Accurate No. 2² | <<locked>> | 60% | 50,720 psi | 79% | 1673 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 41,510 psi | 65% | 1486 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 42,322 psi | 66% | 1529 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 35,969 psi | 56% | 1627 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 37,202 psi | 58% | 1362 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 37,115 psi | 58% | 1394 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 39,653 psi | 62% | 1437 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 45,643 psi | 72% | 1545 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 41,959 psi | 66% | 1909 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 43,062 psi | 67% | 1532 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 37,797 psi | 59% | 1775 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 42,409 psi | 66% | 1509 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 34,896 psi | 55% | 1512 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 37,768 psi | 59% | 1929 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 39,218 psi | 61% | 1447 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 46,238 psi | 72% | 1657 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 43,091 psi | 68% | 1486 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 31,328 psi | 49% | 1352 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 48,588 psi | 76% | 1581 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,053 psi | 50% | 1309 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 38,696 psi | 61% | 1952 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 36,216 psi | 57% | 1896 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 16,186 psi | 25% | 1004 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 49,081 psi | 77% | 1627 fps | 100% |
| IMR 4227² | <<locked>> | 60% | 23,656 psi | 37% | 1680 fps | 98.9% |
| Maxam CSB 1² | <<locked>> | 60% | 40,393 psi | 63% | 1496 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 44,556 psi | 70% | 1539 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 42,134 psi | 66% | 1506 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 42,757 psi | 67% | 1503 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 43,569 psi | 68% | 1480 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 43,033 psi | 67% | 1919 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 16,027 psi | 25% | 1027 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 46,108 psi | 72% | 1624 fps | 100% |
| ReloadSwiss RS 30² | 14.1 gr | 60% | 23,525 psi | 37% | 1696 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 41,524 psi | 65% | 1549 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 45,614 psi | 71% | 1572 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 46,369 psi | 73% | 1588 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 40,741 psi | 64% | 1444 fps | 100% |
| SNPE Vectan BA6 1/2² | 13.1 gr | 60% | 22,771 psi | 36% | 1558 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 40,306 psi | 63% | 1617 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 45,716 psi | 72% | 1581 fps | 100% |
| SNPE Vectan SP 3*² | 15.1 gr | 60% | 16,694 psi | 26% | 1535 fps | 88.6% |
| Somchem MP200² | <<locked>> | 60% | 51,648 psi | 81% | 1713 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 45,397 psi | 71% | 1617 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 27,688 psi | 43% | 1699 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 48,776 psi | 76% | 1726 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 39,653 psi | 62% | 1732 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 39,914 psi | 63% | 1726 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 27,818 psi | 44% | 1703 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 47,152 psi | 74% | 1542 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 25,324 psi | 40% | 1171 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 51,663 psi | 81% | 1634 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 47,239 psi | 74% | 1631 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 42,931 psi | 67% | 1647 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 36,463 psi | 57% | 1965 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 42,438 psi | 67% | 1552 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 58 powders for 7 x 49 GJW loaded with the .284 | 160gr | Barnes TSX FB. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,254 fps; across all powders the maximum-charge window runs from 1,302 fps to 2,254 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 14 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:10.0 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, ReloadSwiss RS 30, SNPE Vectan BA6 1/2 rank at the top here: for 7 x 49 GJW with the .284 | 160gr | Barnes TSX FB 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.