| LoadID | 3277 |
| Bullet | sierra spbt |
| Bullet Weight | 100 grs |
| Powder | rl 15 |
| Powder Weight | 41 grs |
| Primer | br 2 |
| Brass Make | winchester |
| Barrel Length | 26 (inches) |
| C.O.L | 2.598 (inches) |
| Velocity | 3200 fps |
| Group 100 yds | .300 (inches) |
| Submitted By | Kirk |
| Gun Info | custom ruger rebarrel off 243 win |
| Comment | best upgrade over 243 |