Load Specifications
Load data in caliber 7 x 49 GJW with .284 | 140gr | NorthFork Bonded Core 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, IMR 4227 and ReloadSwiss RS 30.
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% | 51,459 psi | 81% | 2231 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 76% | 52,939 psi | 83% | 2326 fps | 100% |
| Accurate No. 2² | <<locked>> | 64% | 56,811 psi | 89% | 1909 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 53,925 psi | 85% | 1798 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 56,289 psi | 88% | 1850 fps | 100% |
| ADI AP 100² | <<locked>> | 76% | 54,491 psi | 85% | 2034 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 54,389 psi | 85% | 1736 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 55,405 psi | 87% | 1785 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 55,071 psi | 86% | 1788 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 54,288 psi | 85% | 1811 fps | 100% |
| Alliant 2400² | <<locked>> | 68% | 54,476 psi | 85% | 2257 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 52,707 psi | 83% | 1804 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 72% | 53,258 psi | 83% | 2159 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 54,911 psi | 86% | 1824 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 54,969 psi | 86% | 1932 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 72% | 57,319 psi | 90% | 2369 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 54,375 psi | 85% | 1801 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 56,188 psi | 88% | 1946 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 56,956 psi | 89% | 1801 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 56,840 psi | 89% | 1818 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 53,766 psi | 84% | 1798 fps | 100% |
| Hodgdon Clays | <<locked>> | 92% | 57,609 psi | 90% | 1801 fps | 100% |
| Hodgdon H110² | <<locked>> | 68% | 51,721 psi | 81% | 2320 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 72% | 55,317 psi | 87% | 2323 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,126 psi | 50% | 1430 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 53,824 psi | 84% | 1850 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 57,421 psi | 90% | 2402 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 57,290 psi | 90% | 1854 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 54,128 psi | 85% | 1811 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 54,926 psi | 86% | 1821 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 55,927 psi | 88% | 1821 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 55,738 psi | 87% | 1785 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 68% | 56,144 psi | 88% | 2264 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,039 psi | 50% | 1467 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 56,492 psi | 89% | 1909 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 88% | 56,376 psi | 88% | 2372 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 72% | 55,782 psi | 87% | 1880 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 54,679 psi | 86% | 1837 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 55,782 psi | 87% | 1860 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 56,695 psi | 89% | 1798 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 56,028 psi | 88% | 2211 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 72% | 55,114 psi | 86% | 1962 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 55,361 psi | 87% | 1860 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 52,315 psi | 82% | 2454 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 57,435 psi | 90% | 1949 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 55,027 psi | 86% | 1896 fps | 100% |
| Somchem S265 | <<locked>> | 84% | 56,391 psi | 88% | 2303 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 64% | 54,462 psi | 85% | 1962 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 72% | 55,376 psi | 87% | 2100 fps | 100% |
| Vihtavuori N105² | <<locked>> | 72% | 57,029 psi | 89% | 2100 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 51,866 psi | 81% | 2224 fps | 100% |
| Vihtavuori N320² | <<locked>> | 68% | 56,942 psi | 89% | 1814 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 52,054 psi | 82% | 1677 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 57,087 psi | 89% | 1860 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 52,301 psi | 82% | 1854 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 53,679 psi | 84% | 1942 fps | 100% |
| Winchester 296² | <<locked>> | 72% | 55,695 psi | 87% | 2425 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 57,043 psi | 89% | 1883 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% | 38,885 psi | 61% | 2060 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 30,545 psi | 48% | 1978 fps | 100% |
| Accurate No. 2² | <<locked>> | 60% | 50,459 psi | 79% | 1841 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 41,829 psi | 66% | 1640 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 42,279 psi | 66% | 1680 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 36,201 psi | 57% | 1791 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 37,637 psi | 59% | 1506 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 37,144 psi | 58% | 1532 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 39,798 psi | 62% | 1585 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 45,730 psi | 72% | 1703 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 42,351 psi | 66% | 2100 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 43,381 psi | 68% | 1690 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 37,681 psi | 59% | 1942 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 42,119 psi | 66% | 1657 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 35,230 psi | 55% | 1667 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 38,406 psi | 60% | 2116 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 39,552 psi | 62% | 1598 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 46,340 psi | 73% | 1824 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 43,047 psi | 67% | 1634 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 31,488 psi | 49% | 1486 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 48,486 psi | 76% | 1736 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,460 psi | 51% | 1450 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 39,305 psi | 62% | 2142 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 36,608 psi | 57% | 2077 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 16,389 psi | 26% | 1106 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 48,559 psi | 76% | 1785 fps | 100% |
| IMR 4227² | 16 gr | 60% | 23,960 psi | 38% | 1834 fps | 98.3% |
| Maxam CSB 1² | <<locked>> | 60% | 40,350 psi | 63% | 1647 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 44,541 psi | 70% | 1690 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 42,235 psi | 66% | 1660 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 43,004 psi | 67% | 1657 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 43,395 psi | 68% | 1624 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 43,410 psi | 68% | 2106 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 16,244 psi | 25% | 1129 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 45,977 psi | 72% | 1785 fps | 100% |
| ReloadSwiss RS 30² | 15.4 gr | 60% | 23,685 psi | 37% | 1854 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 41,611 psi | 65% | 1706 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 45,223 psi | 71% | 1722 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 45,948 psi | 72% | 1742 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 40,988 psi | 64% | 1594 fps | 100% |
| SNPE Vectan BA6 1/2² | <<locked>> | 60% | 22,974 psi | 36% | 1709 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 40,205 psi | 63% | 1778 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 45,803 psi | 72% | 1742 fps | 100% |
| SNPE Vectan SP 3*² | 16.5 gr | 60% | 17,085 psi | 27% | 1673 fps | 87.1% |
| Somchem MP200² | <<locked>> | 60% | 52,098 psi | 82% | 1890 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 45,382 psi | 71% | 1778 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 28,036 psi | 44% | 1860 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 48,791 psi | 76% | 1896 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 39,668 psi | 62% | 1903 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 40,118 psi | 63% | 1896 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 28,181 psi | 44% | 1867 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 47,137 psi | 74% | 1699 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 25,541 psi | 40% | 1289 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 51,445 psi | 81% | 1795 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 46,978 psi | 74% | 1788 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 42,960 psi | 67% | 1811 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 37,130 psi | 58% | 2156 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 42,627 psi | 67% | 1709 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 | 140gr | NorthFork Bonded Core. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,454 fps; across all powders the maximum-charge window runs from 1,430 fps to 2,454 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 140.0 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, IMR 4227, ReloadSwiss RS 30 rank at the top here: for 7 x 49 GJW with the .284 | 140gr | NorthFork Bonded Core 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.