Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 140gr | Woodleigh PP SN bullet and 57 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% | 53,505 psi | 84% | 2280 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 76% | 55,129 psi | 86% | 2379 fps | 100% |
| Accurate No. 2² | <<locked>> | 64% | 57,595 psi | 90% | 1946 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 54,578 psi | 86% | 1837 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 57,508 psi | 90% | 1893 fps | 100% |
| ADI AP 100² | <<locked>> | 76% | 55,825 psi | 87% | 2073 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 54,955 psi | 86% | 1775 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 55,622 psi | 87% | 1818 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 55,680 psi | 87% | 1824 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 54,998 psi | 86% | 1847 fps | 100% |
| Alliant 2400² | <<locked>> | 68% | 56,434 psi | 88% | 2306 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 53,374 psi | 84% | 1841 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 72% | 54,868 psi | 86% | 2201 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 55,550 psi | 87% | 1860 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 56,159 psi | 88% | 1975 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 68% | 52,518 psi | 82% | 2339 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 55,172 psi | 86% | 1841 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 56,782 psi | 89% | 1982 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 52,750 psi | 83% | 1781 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 57,653 psi | 90% | 1854 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 54,679 psi | 86% | 1834 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 54,636 psi | 86% | 1795 fps | 100% |
| Hodgdon H110² | <<locked>> | 68% | 53,722 psi | 84% | 2369 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 68% | 50,720 psi | 79% | 2293 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,605 psi | 51% | 1460 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 54,491 psi | 85% | 1886 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 53,069 psi | 83% | 2379 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 53,780 psi | 84% | 1844 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 54,752 psi | 86% | 1844 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 55,506 psi | 87% | 1857 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 56,492 psi | 89% | 1857 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 56,333 psi | 88% | 1824 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 64% | 51,605 psi | 81% | 2234 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,518 psi | 51% | 1496 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 57,551 psi | 90% | 1949 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 84% | 52,518 psi | 82% | 2352 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 72% | 56,101 psi | 88% | 1913 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 55,317 psi | 87% | 1873 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 56,536 psi | 89% | 1896 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 56,840 psi | 89% | 1831 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 52,765 psi | 83% | 2201 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 72% | 56,246 psi | 88% | 2001 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 56,405 psi | 88% | 1900 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 55,666 psi | 87% | 2523 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 56,144 psi | 88% | 1939 fps | 100% |
| Somchem S265 | <<locked>> | 80% | 52,475 psi | 82% | 2283 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 64% | 55,303 psi | 87% | 1998 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 72% | 57,145 psi | 90% | 2146 fps | 100% |
| Vihtavuori N105² | <<locked>> | 68% | 52,547 psi | 82% | 2073 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 53,621 psi | 84% | 2267 fps | 100% |
| Vihtavuori N320² | <<locked>> | 68% | 57,595 psi | 90% | 1850 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 52,620 psi | 82% | 1713 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 57,580 psi | 90% | 1893 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 52,939 psi | 83% | 1886 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 54,607 psi | 86% | 1978 fps | 100% |
| Winchester 296² | <<locked>> | 68% | 51,039 psi | 80% | 2392 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 57,450 psi | 90% | 1916 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% | 40,625 psi | 64% | 2110 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 32,111 psi | 50% | 2034 fps | 100% |
| Accurate No. 2² | <<locked>> | 60% | 51,532 psi | 81% | 1880 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 42,438 psi | 67% | 1677 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 43,453 psi | 68% | 1722 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 37,115 psi | 58% | 1827 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 37,913 psi | 59% | 1535 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 37,753 psi | 59% | 1568 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 40,567 psi | 64% | 1621 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 46,253 psi | 72% | 1736 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 44,019 psi | 69% | 2149 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 43,918 psi | 69% | 1722 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 39,160 psi | 61% | 1988 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 42,786 psi | 67% | 1693 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 35,679 psi | 56% | 1696 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 40,118 psi | 63% | 2165 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 39,871 psi | 62% | 1631 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 46,775 psi | 73% | 1854 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 44,106 psi | 69% | 1677 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 10.9 gr | 60% | 31,908 psi | 50% | 1516 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 49,153 psi | 77% | 1772 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,735 psi | 51% | 1476 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 41,046 psi | 64% | 2192 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 38,130 psi | 60% | 2119 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 16,462 psi | 26% | 1122 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 49,487 psi | 78% | 1824 fps | 100% |
| IMR 4227² | <<locked>> | 60% | 24,932 psi | 39% | 1880 fps | 98.9% |
| Maxam CSB 1² | <<locked>> | 60% | 40,915 psi | 64% | 1677 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 45,614 psi | 71% | 1729 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 42,815 psi | 67% | 1693 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 43,584 psi | 68% | 1690 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 44,005 psi | 69% | 1660 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 44,889 psi | 70% | 2149 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 16,636 psi | 26% | 1158 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 46,891 psi | 73% | 1821 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 24,889 psi | 39% | 1900 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 42,569 psi | 67% | 1745 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 45,759 psi | 72% | 1755 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 46,572 psi | 73% | 1775 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 41,408 psi | 65% | 1627 fps | 100% |
| SNPE Vectan BA6 1/2² | 15.2 gr | 60% | 24,134 psi | 38% | 1752 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 41,350 psi | 65% | 1818 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 46,673 psi | 73% | 1778 fps | 100% |
| SNPE Vectan SP 3*² | 17.5 gr | 60% | 17,970 psi | 28% | 1732 fps | 88.9% |
| Somchem MS200² | <<locked>> | 60% | 46,325 psi | 73% | 1818 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 28,979 psi | 45% | 1903 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 49,835 psi | 78% | 1936 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 40,785 psi | 64% | 1942 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 41,466 psi | 65% | 1936 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 29,486 psi | 46% | 1909 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 48,240 psi | 76% | 1739 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 25,556 psi | 40% | 1312 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 52,243 psi | 82% | 1834 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 47,863 psi | 75% | 1827 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 44,338 psi | 69% | 1854 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 38,885 psi | 61% | 2208 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 43,207 psi | 68% | 1739 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 57 powders for 7 x 49 GJW loaded with the .284 | 140gr | Woodleigh PP SN. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,523 fps; across all powders the maximum-charge window runs from 1,460 fps to 2,523 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 14 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:13.0 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 .284 | 140gr | Woodleigh PP SN 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.