Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 160gr | Winchester Silvertip 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 Hodgdon Clays.
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>> | 64% | 51,416 psi | 81% | 2103 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 72% | 53,882 psi | 84% | 2208 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 55,767 psi | 87% | 1739 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 54,476 psi | 85% | 1742 fps | 100% |
| ADI AP 100² | <<locked>> | 72% | 53,635 psi | 84% | 1913 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 55,608 psi | 87% | 1680 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 56,231 psi | 88% | 1719 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 56,710 psi | 89% | 1729 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 56,289 psi | 88% | 1749 fps | 100% |
| Alliant 2400² | <<locked>> | 64% | 54,447 psi | 85% | 2126 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 55,274 psi | 87% | 1745 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 68% | 52,924 psi | 83% | 2031 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 56,826 psi | 89% | 1762 fps | 100% |
| Alliant Herco² | <<locked>> | 76% | 53,882 psi | 84% | 1821 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 64% | 50,966 psi | 80% | 2159 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 56,318 psi | 88% | 1745 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 64% | 53,708 psi | 84% | 1818 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 54,781 psi | 86% | 1696 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 55,114 psi | 86% | 1716 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 56,101 psi | 88% | 1736 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 64% | 54,201 psi | 85% | 1752 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 55,274 psi | 87% | 1699 fps | 100% |
| Hodgdon H110² | <<locked>> | 64% | 52,156 psi | 82% | 2188 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 68% | 56,492 psi | 89% | 2195 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,707 psi | 53% | 1385 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 56,101 psi | 88% | 1785 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 55,376 psi | 87% | 1745 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 56,289 psi | 88% | 1749 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 56,869 psi | 89% | 1759 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 57,711 psi | 90% | 1759 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 57,290 psi | 90% | 1726 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 64% | 56,565 psi | 89% | 2136 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,779 psi | 53% | 1417 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 54,418 psi | 85% | 1791 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 80% | 52,852 psi | 83% | 2192 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 68% | 53,664 psi | 84% | 1762 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 57,159 psi | 90% | 1778 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 64% | 53,287 psi | 84% | 1742 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 53,301 psi | 84% | 1683 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 57,725 psi | 90% | 2100 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 68% | 53,780 psi | 84% | 1844 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 64% | 53,026 psi | 83% | 1742 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 56,434 psi | 88% | 2372 fps | 100% |
| Somchem MS200² | <<locked>> | 64% | 52,953 psi | 83% | 1778 fps | 100% |
| Somchem S265 | <<locked>> | 80% | 57,130 psi | 90% | 2185 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 68% | 55,376 psi | 87% | 1982 fps | 100% |
| Vihtavuori N105² | <<locked>> | 68% | 56,739 psi | 89% | 1975 fps | 100% |
| Vihtavuori N110² | <<locked>> | 76% | 53,200 psi | 83% | 2106 fps | 100% |
| Vihtavuori N320² | <<locked>> | 64% | 54,259 psi | 85% | 1703 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 53,403 psi | 84% | 1617 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 54,955 psi | 86% | 1788 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 57,682 psi | 90% | 1880 fps | 100% |
| Winchester 296² | <<locked>> | 68% | 57,319 psi | 90% | 2303 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 68% | 54,302 psi | 85% | 1762 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% | 44,918 psi | 70% | 2021 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 35,969 psi | 56% | 1965 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 43,221 psi | 68% | 1581 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 44,570 psi | 70% | 1624 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 39,465 psi | 62% | 1736 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 38,319 psi | 60% | 1450 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 38,159 psi | 60% | 1480 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 41,220 psi | 65% | 1532 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 47,659 psi | 75% | 1644 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 47,921 psi | 75% | 2051 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 45,339 psi | 71% | 1631 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 41,930 psi | 66% | 1890 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 44,179 psi | 69% | 1604 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 37,405 psi | 59% | 1608 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 44,657 psi | 70% | 2080 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 40,611 psi | 64% | 1539 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 48,820 psi | 77% | 1759 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 44,991 psi | 71% | 1581 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 32,706 psi | 51% | 1430 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 50,604 psi | 79% | 1677 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 49,603 psi | 78% | 1699 fps | 100% |
| Hodgdon Clays² | 9.1 gr | 60% | 33,228 psi | 52% | 1394 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 45,672 psi | 72% | 2106 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 43,004 psi | 67% | 2037 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 17,187 psi | 27% | 1066 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 51,140 psi | 80% | 1726 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 42,018 psi | 66% | 1585 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 46,601 psi | 73% | 1634 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 43,758 psi | 69% | 1598 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 44,396 psi | 70% | 1598 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 44,570 psi | 70% | 1568 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 49,501 psi | 78% | 2057 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 17,114 psi | 27% | 1089 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 48,921 psi | 77% | 1726 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 28,268 psi | 44% | 1834 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 44,440 psi | 70% | 1654 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 47,659 psi | 75% | 1667 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 48,689 psi | 76% | 1690 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 41,756 psi | 65% | 1535 fps | 100% |
| SNPE Vectan BA6 1/2² | 15.6 gr | 60% | 26,847 psi | 42% | 1680 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 43,468 psi | 68% | 1722 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 48,298 psi | 76% | 1686 fps | 100% |
| SNPE Vectan SP 3*² | 17.9 gr | 60% | 20,262 psi | 32% | 1709 fps | 93.9% |
| Somchem MS200² | <<locked>> | 60% | 48,196 psi | 76% | 1722 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 31,734 psi | 50% | 1831 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 44,106 psi | 69% | 1850 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 44,672 psi | 70% | 1841 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 32,460 psi | 51% | 1827 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 49,110 psi | 77% | 1640 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 26,600 psi | 42% | 1247 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 49,850 psi | 78% | 1729 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 46,688 psi | 73% | 1759 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 43,584 psi | 68% | 2129 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 45,252 psi | 71% | 1654 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 7 powders for 7 x 49 GJW loaded with the .284 | 160gr | Winchester Silvertip. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,372 fps; across all powders the maximum-charge window runs from 1,385 fps to 2,372 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 7 of the 7 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:16.0 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, Hodgdon Clays rank at the top here: for 7 x 49 GJW with the .284 | 160gr | Winchester Silvertip 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.