| LoadID | 7773 |
| Bullet | Magma .403 cast |
| Bullet Weight | 180 grs |
| Powder | HP-38 |
| Powder Weight | 6.9 grs |
| Primer | CCI-300 |
| Brass Make | Star-Line |
| Barrel Length | 24 (inches) |
| C.O.L | 1.588 (inches) |
| Velocity | 1158 fps |
| Group 100 yds | 6.0 (inches) |
| Submitted By | Float Pilot |
| Gun Info | Original 1892 Winchester mader in 1892. |
| Comment | Clean load. This rifle has a pitted barrel and cannot do much better. This powder is the same as WW-231 |