Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 160gr | Speer Grand Slam bullet and 55 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% | 56,884 psi | 89% | 2139 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 72% | 51,837 psi | 81% | 2162 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 55,680 psi | 87% | 1709 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 53,621 psi | 84% | 1706 fps | 100% |
| ADI AP 100² | <<locked>> | 76% | 57,638 psi | 90% | 1932 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 55,550 psi | 87% | 1650 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 55,854 psi | 88% | 1686 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 56,623 psi | 89% | 1699 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 56,144 psi | 88% | 1722 fps | 100% |
| Alliant 2400² | <<locked>> | 64% | 52,692 psi | 83% | 2083 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 54,491 psi | 85% | 1713 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 72% | 57,537 psi | 90% | 2057 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 56,057 psi | 88% | 1726 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 57,203 psi | 90% | 1834 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 68% | 56,275 psi | 88% | 2198 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 55,390 psi | 87% | 1706 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 64% | 53,403 psi | 84% | 1791 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 54,027 psi | 85% | 1660 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 54,621 psi | 86% | 1686 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 55,579 psi | 87% | 1706 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 54,911 psi | 86% | 1667 fps | 100% |
| Hodgdon H110² | <<locked>> | 68% | 57,580 psi | 90% | 2228 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 68% | 54,563 psi | 86% | 2152 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,170 psi | 52% | 1358 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 55,303 psi | 87% | 1752 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 57,159 psi | 90% | 2244 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 54,737 psi | 86% | 1713 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 55,535 psi | 87% | 1713 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 56,188 psi | 88% | 1726 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 57,014 psi | 89% | 1726 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 56,565 psi | 89% | 1690 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 64% | 54,549 psi | 85% | 2093 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,243 psi | 52% | 1391 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 53,650 psi | 84% | 1759 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 84% | 56,782 psi | 89% | 2211 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 72% | 57,493 psi | 90% | 1778 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 56,405 psi | 88% | 1742 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 64% | 52,779 psi | 83% | 1713 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 53,374 psi | 84% | 1660 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 56,202 psi | 88% | 2064 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 68% | 52,881 psi | 83% | 1811 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 57,435 psi | 90% | 1765 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 53,809 psi | 84% | 2320 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 57,406 psi | 90% | 1801 fps | 100% |
| Somchem S265 | <<locked>> | 80% | 55,230 psi | 87% | 2139 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 64% | 57,377 psi | 90% | 1864 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 68% | 53,911 psi | 84% | 1942 fps | 100% |
| Vihtavuori N105² | <<locked>> | 68% | 55,651 psi | 87% | 1942 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 57,058 psi | 89% | 2126 fps | 100% |
| Vihtavuori N320² | <<locked>> | 64% | 53,940 psi | 85% | 1673 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 53,272 psi | 83% | 1591 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 54,201 psi | 85% | 1755 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 56,608 psi | 89% | 1844 fps | 100% |
| Winchester 296² | <<locked>> | 68% | 54,969 psi | 86% | 2254 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 68% | 54,114 psi | 85% | 1736 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% | 43,453 psi | 68% | 1982 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 34,592 psi | 54% | 1923 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 43,105 psi | 68% | 1555 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 44,527 psi | 70% | 1601 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 38,464 psi | 60% | 1699 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 37,971 psi | 60% | 1421 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 38,000 psi | 60% | 1457 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 40,959 psi | 64% | 1503 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 47,065 psi | 74% | 1614 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 46,601 psi | 73% | 2011 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 44,657 psi | 70% | 1598 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 40,785 psi | 64% | 1854 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 43,453 psi | 68% | 1572 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 36,883 psi | 58% | 1581 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 42,772 psi | 67% | 2034 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 40,799 psi | 64% | 1519 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 48,283 psi | 76% | 1729 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 45,034 psi | 71% | 1558 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 10.6 gr | 60% | 32,663 psi | 51% | 1411 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 49,850 psi | 78% | 1647 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,880 psi | 52% | 1368 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 43,758 psi | 69% | 2060 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 41,307 psi | 65% | 1995 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 17,085 psi | 27% | 1050 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 50,749 psi | 80% | 1699 fps | 100% |
| IMR 4227² | <<locked>> | 60% | 26,992 psi | 42% | 1791 fps | 99.9% |
| Maxam CSB 1² | <<locked>> | 60% | 41,959 psi | 66% | 1562 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 46,659 psi | 73% | 1611 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 43,671 psi | 68% | 1575 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 44,309 psi | 69% | 1572 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 44,469 psi | 70% | 1542 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 47,877 psi | 75% | 2014 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 17,013 psi | 27% | 1073 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 48,544 psi | 76% | 1699 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 26,876 psi | 42% | 1791 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 43,381 psi | 68% | 1617 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 47,050 psi | 74% | 1637 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 48,008 psi | 75% | 1657 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 41,785 psi | 65% | 1509 fps | 100% |
| SNPE Vectan BA6 1/2² | 14.8 gr | 60% | 25,889 psi | 41% | 1647 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 42,728 psi | 67% | 1690 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 47,340 psi | 74% | 1650 fps | 100% |
| SNPE Vectan SP 3*² | 17 gr | 60% | 19,406 psi | 30% | 1663 fps | 92.7% |
| Somchem MS200² | <<locked>> | 60% | 47,776 psi | 75% | 1693 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 30,676 psi | 48% | 1791 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 51,634 psi | 81% | 1804 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 42,873 psi | 67% | 1814 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 43,772 psi | 69% | 1808 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 31,372 psi | 49% | 1791 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 49,197 psi | 77% | 1617 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 26,150 psi | 41% | 1220 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 48,878 psi | 77% | 1696 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 45,788 psi | 72% | 1726 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 41,597 psi | 65% | 2080 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 44,599 psi | 70% | 1624 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 55 powders for 7 x 49 GJW loaded with the .284 | 160gr | Speer Grand Slam. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,320 fps; across all powders the maximum-charge window runs from 1,358 fps to 2,320 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 14 of the 55 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 160.0 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 | 160gr | Speer Grand Slam 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.