Load Specifications
Load data in caliber 7 x 49 GJW with .285 | 150gr | Rim Rock RNFP Gas Check 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% | 54,433 psi | 85% | 2228 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 76% | 56,710 psi | 89% | 2329 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 72% | 54,897 psi | 86% | 1791 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 52,489 psi | 82% | 1785 fps | 100% |
| ADI AP 100² | <<locked>> | 76% | 56,826 psi | 89% | 2024 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 55,158 psi | 86% | 1732 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 55,738 psi | 87% | 1772 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 55,869 psi | 88% | 1781 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 55,216 psi | 87% | 1801 fps | 100% |
| Alliant 2400² | <<locked>> | 68% | 57,609 psi | 90% | 2254 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 53,925 psi | 85% | 1798 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 72% | 55,637 psi | 87% | 2149 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 55,738 psi | 87% | 1814 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 56,681 psi | 89% | 1926 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 68% | 53,563 psi | 84% | 2287 fps | 100% |
| Alliant RED DOT² | <<locked>> | 76% | 55,376 psi | 87% | 1798 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 57,653 psi | 90% | 1936 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 52,997 psi | 83% | 1739 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 53,838 psi | 84% | 1765 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 54,810 psi | 86% | 1788 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 54,723 psi | 86% | 1749 fps | 100% |
| Hodgdon H110² | <<locked>> | 68% | 54,911 psi | 86% | 2320 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 68% | 51,416 psi | 81% | 2238 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,213 psi | 50% | 1421 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 54,636 psi | 86% | 1837 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 54,839 psi | 86% | 2333 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 54,041 psi | 85% | 1798 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 54,737 psi | 86% | 1798 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 55,753 psi | 87% | 1811 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 56,724 psi | 89% | 1811 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 56,550 psi | 89% | 1778 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 64% | 52,446 psi | 82% | 2182 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,445 psi | 51% | 1460 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 64% | 52,692 psi | 83% | 1841 fps | 100% |
| ReloadSwiss RS 30 | <<locked>> | 84% | 54,462 psi | 85% | 2303 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 72% | 57,087 psi | 89% | 1870 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 56,028 psi | 88% | 1831 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 57,377 psi | 90% | 1854 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 56,927 psi | 89% | 1785 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 53,737 psi | 84% | 2149 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 72% | 57,043 psi | 89% | 1952 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 56,594 psi | 89% | 1850 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 51,285 psi | 80% | 2405 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 56,449 psi | 88% | 1890 fps | 100% |
| Somchem S265 | <<locked>> | 80% | 53,026 psi | 83% | 2231 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 64% | 56,115 psi | 88% | 1952 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 68% | 52,417 psi | 82% | 2034 fps | 100% |
| Vihtavuori N105² | <<locked>> | 68% | 53,229 psi | 83% | 2024 fps | 100% |
| Vihtavuori N110 | <<locked>> | 80% | 55,201 psi | 87% | 2221 fps | 100% |
| Vihtavuori N320² | <<locked>> | 64% | 53,084 psi | 83% | 1752 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 52,359 psi | 82% | 1667 fps | 100% |
| Vihtavuori N340² | <<locked>> | 64% | 53,258 psi | 83% | 1841 fps | 100% |
| Vihtavuori N350² | <<locked>> | 68% | 55,521 psi | 87% | 1932 fps | 100% |
| Winchester 296² | <<locked>> | 68% | 52,170 psi | 82% | 2343 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 68% | 52,779 psi | 83% | 1814 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% | 41,220 psi | 65% | 2064 fps | 100% |
| Accurate No. 11 FS² | <<locked>> | 60% | 32,474 psi | 51% | 1991 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 60% | 42,380 psi | 66% | 1631 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 43,265 psi | 68% | 1673 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 37,420 psi | 59% | 1781 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 37,869 psi | 59% | 1496 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 37,652 psi | 59% | 1526 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 40,393 psi | 63% | 1578 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 46,006 psi | 72% | 1686 fps | 100% |
| Alliant 2400² | <<locked>> | 60% | 44,425 psi | 70% | 2093 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 43,990 psi | 69% | 1677 fps | 100% |
| Alliant BLUE DOT² | <<locked>> | 60% | 39,218 psi | 61% | 1936 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 43,149 psi | 68% | 1654 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 35,766 psi | 56% | 1654 fps | 100% |
| Alliant Power Pro 300-MP² | <<locked>> | 60% | 39,900 psi | 63% | 2110 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 39,711 psi | 62% | 1585 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 47,079 psi | 74% | 1808 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 43,859 psi | 69% | 1627 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 11.1 gr | 60% | 31,502 psi | 49% | 1473 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 49,342 psi | 77% | 1726 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 32,692 psi | 51% | 1440 fps | 100% |
| Hodgdon H110² | <<locked>> | 60% | 40,901 psi | 64% | 2136 fps | 100% |
| Hodgdon LilGun² | <<locked>> | 60% | 38,493 psi | 60% | 2070 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 16,172 psi | 25% | 1096 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 49,676 psi | 78% | 1778 fps | 100% |
| IMR 4227² | <<locked>> | 60% | 25,135 psi | 39% | 1847 fps | 99.5% |
| Maxam CSB 1² | <<locked>> | 60% | 40,712 psi | 64% | 1631 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 45,092 psi | 71% | 1680 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 42,656 psi | 67% | 1647 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 43,424 psi | 68% | 1644 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 43,816 psi | 69% | 1617 fps | 100% |
| Ramshot Enforcer² | <<locked>> | 60% | 45,556 psi | 71% | 2100 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 15,925 psi | 25% | 1119 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 47,210 psi | 74% | 1775 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 24,889 psi | 39% | 1854 fps | 100% |
| SNPE Vectan A0² | <<locked>> | 60% | 43,018 psi | 67% | 1703 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 46,021 psi | 72% | 1709 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 46,905 psi | 74% | 1732 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 41,234 psi | 65% | 1581 fps | 100% |
| SNPE Vectan BA6 1/2² | 15.6 gr | 60% | 23,931 psi | 38% | 1706 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 41,597 psi | 65% | 1768 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 46,978 psi | 74% | 1736 fps | 100% |
| SNPE Vectan SP 3*² | 17.9 gr | 60% | 17,376 psi | 27% | 1690 fps | 90.2% |
| Somchem MS200² | <<locked>> | 60% | 46,702 psi | 73% | 1772 fps | 100% |
| Somchem S265² | <<locked>> | 60% | 28,660 psi | 45% | 1857 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 50,038 psi | 78% | 1883 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 40,872 psi | 64% | 1890 fps | 100% |
| Vihtavuori N105² | <<locked>> | 60% | 41,423 psi | 65% | 1883 fps | 100% |
| Vihtavuori N110² | <<locked>> | 60% | 28,950 psi | 45% | 1854 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 47,935 psi | 75% | 1690 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 25,599 psi | 40% | 1283 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 48,196 psi | 76% | 1781 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 44,614 psi | 70% | 1804 fps | 100% |
| Winchester 296² | <<locked>> | 60% | 39,073 psi | 61% | 2159 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 43,743 psi | 69% | 1703 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 .285 | 150gr | Rim Rock RNFP Gas Check. SNPE Vectan SP 3 delivers the highest muzzle velocity at 2,405 fps; across all powders the maximum-charge window runs from 1,421 fps to 2,405 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 50–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.285" calls for a 1:15.0 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 .285 | 150gr | Rim Rock RNFP Gas Check 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.