Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 135gr | Atomic 29 HP bullet and 61 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>> | 72% | 56,884 psi | 89% | 2339 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 76% | 51,851 psi | 81% | 2362 fps | 100% |
| Accurate No. 2² | <<locked>> | 64% | 55,840 psi | 88% | 1939 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 54,027 psi | 85% | 1837 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 56,217 psi | 88% | 1890 fps | 100% |
| Accurate TCM² | <<locked>> | 64% | 57,624 psi | 90% | 2267 fps | 100% |
| ADI AP 100² | <<locked>> | 76% | 53,417 psi | 84% | 2064 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 54,607 psi | 86% | 1772 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 54,911 psi | 86% | 1814 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 55,187 psi | 86% | 1824 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 54,360 psi | 85% | 1847 fps | 100% |
| Alliant 2400² | <<locked>> | 68% | 53,650 psi | 84% | 2297 fps | 100% |
| Alliant BE-86² | <<locked>> | 72% | 57,667 psi | 90% | 1896 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 72% | 52,054 psi | 82% | 2188 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 54,288 psi | 85% | 1854 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 54,752 psi | 86% | 1972 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 72% | 56,173 psi | 88% | 2405 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 54,505 psi | 85% | 1841 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 55,332 psi | 87% | 1978 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 56,985 psi | 89% | 1837 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 56,768 psi | 89% | 1854 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 53,592 psi | 84% | 1831 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 56,623 psi | 89% | 1909 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 53,969 psi | 85% | 1791 fps | 100% |
| Hodgdon H110² | <<locked>> | 72% | 57,566 psi | 90% | 2438 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 72% | 54,143 psi | 85% | 2362 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,169 psi | 50% | 1463 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 53,113 psi | 83% | 1880 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 57,217 psi | 90% | 1893 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 53,417 psi | 84% | 1841 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 54,273 psi | 85% | 1854 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 55,288 psi | 87% | 1850 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 55,201 psi | 87% | 1814 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 68% | 55,230 psi | 87% | 2300 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,633 psi | 50% | 1490 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 55,608 psi | 87% | 1942 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 64% | 57,580 psi | 90% | 2211 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 88% | 55,027 psi | 86% | 2408 fps | 100% |
| Rottweil P 806² | <<locked>> | 64% | 57,217 psi | 90% | 2106 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 72% | 54,940 psi | 86% | 1909 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 54,578 psi | 86% | 1873 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 55,680 psi | 87% | 1896 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 56,188 psi | 88% | 1827 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 54,984 psi | 86% | 2247 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 72% | 54,781 psi | 86% | 2001 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 55,274 psi | 87% | 1896 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 51,343 psi | 80% | 2487 fps | 99.9% |
| Somchem MP200² | <<locked>> | 64% | 57,217 psi | 90% | 1988 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 54,882 psi | 86% | 1936 fps | 100% |
| Somchem S265 | <<locked>> | 84% | 55,376 psi | 87% | 2339 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 64% | 54,143 psi | 85% | 2001 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 72% | 54,766 psi | 86% | 2139 fps | 100% |
| Vihtavuori N105² | <<locked>> | 72% | 56,304 psi | 88% | 2136 fps | 100% |
| Vihtavuori N110 | <<locked>> | 84% | 56,289 psi | 88% | 2323 fps | 100% |
| Vihtavuori N320² | <<locked>> | 68% | 57,000 psi | 89% | 1854 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 52,083 psi | 82% | 1709 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 56,304 psi | 88% | 1890 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 57,058 psi | 89% | 1946 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 53,330 psi | 84% | 1978 fps | 100% |
| Winchester 296² | <<locked>> | 72% | 54,505 psi | 85% | 2461 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 56,246 psi | 88% | 1913 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% | 38,203 psi | 60% | 2093 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 29,979 psi | 47% | 2008 fps | 99.9% |
| Accurate No. 2² | <<locked>> | 60% | 49,603 psi | 78% | 1870 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 41,350 psi | 65% | 1667 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 42,279 psi | 66% | 1716 fps | 100% |
| Accurate TCM² | <<locked>> | 60% | 50,372 psi | 79% | 2185 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 35,491 psi | 56% | 1818 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 37,318 psi | 58% | 1532 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 37,347 psi | 59% | 1568 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 39,987 psi | 63% | 1621 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 45,208 psi | 71% | 1729 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 41,727 psi | 65% | 2136 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 42,772 psi | 67% | 1716 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 37,231 psi | 58% | 1978 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 42,235 psi | 66% | 1693 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 34,650 psi | 54% | 1693 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 37,260 psi | 58% | 2142 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 39,131 psi | 61% | 1624 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 45,614 psi | 71% | 1854 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 43,105 psi | 68% | 1670 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 31,053 psi | 49% | 1512 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 48,356 psi | 76% | 1772 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 46,746 psi | 73% | 1788 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,140 psi | 50% | 1473 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 38,145 psi | 60% | 2169 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 35,404 psi | 55% | 2103 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 16,186 psi | 25% | 1122 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 48,559 psi | 76% | 1821 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 39,813 psi | 62% | 1673 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 44,570 psi | 70% | 1726 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 41,713 psi | 65% | 1686 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 42,496 psi | 67% | 1683 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 42,946 psi | 67% | 1654 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 42,206 psi | 66% | 2133 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 16,012 psi | 25% | 1148 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 45,847 psi | 72% | 1821 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 50,647 psi | 79% | 2129 fps | 100% |
| ReloadSwiss RS 30² | 15.5 gr | 60% | 23,206 psi | 36% | 1883 fps | 100% |
| Rottweil P 806² | <<locked>> | 60% | 50,995 psi | 80% | 2037 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 41,524 psi | 65% | 1742 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 45,194 psi | 71% | 1759 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 45,876 psi | 72% | 1778 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 40,625 psi | 64% | 1621 fps | 100% |
| SNPE Vectan BA6 1/2² | 14.4 gr | 60% | 22,582 psi | 35% | 1736 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 39,987 psi | 63% | 1811 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 45,788 psi | 72% | 1778 fps | 100% |
| SNPE Vectan SP 3*² | 16.6 gr | 60% | 16,752 psi | 26% | 1690 fps | 85.9% |
| Somchem MP200² | <<locked>> | 60% | 51,285 psi | 80% | 1919 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 45,295 psi | 71% | 1814 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 27,311 psi | 43% | 1883 fps | 99.9% |
| Vihtavuori 3N37² | <<locked>> | 60% | 47,877 psi | 75% | 1926 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 38,740 psi | 61% | 1929 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 39,117 psi | 61% | 1926 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 27,311 psi | 43% | 1890 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 47,239 psi | 74% | 1736 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 25,237 psi | 40% | 1312 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 50,720 psi | 79% | 1824 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 46,224 psi | 72% | 1818 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 42,743 psi | 67% | 1847 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 35,897 psi | 56% | 2182 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 42,569 psi | 67% | 1742 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 10 powders for 7 x 49 GJW loaded with the .284 | 135gr | Atomic 29 HP. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,487 fps; across all powders the maximum-charge window runs from 1,463 fps to 2,487 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 10 of the 10 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–89 %, leaving at least 11 % headroom. The 135.0 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, 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 | 135gr | Atomic 29 HP they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.