Effect
of Barrel Length on the Velocity of .45 ACP Cartridges
The following information was provided by noted gunwriter Dean Speir, and
reproduced in The Complete Book of Autopistols Buyer's Guide 1998. It
compares the velocity of 20 different JHP-style defensive loadings in .45ACP across a wide
range of bullet weights in both standard and +p configurations. The comparison is
between a Glock 21 (4.60" polygonally rifled barrel) and a Glock 30 (3.78"
polygonally rifled barrel).
| Ammo |
G21 |
G30 |
diff. |
| Corbon 165gr BHP+p |
1,160fps |
1,096fps |
-64fps |
| Federal 165gr Personal Defense |
1,083fps |
1,023fps |
-60fps |
| Triton 165gr BHP +p |
1,209fps |
1,134fps |
-75fps |
| Triton 165gr BHP "Lite" |
1,044fps |
999fps |
-45fps |
| Federal 185gr JHP |
954fps |
904fps |
-50fps |
| Remington 185gr JHP +p |
1,054fps |
1,021fps |
-33fps |
| Remington 185gr Golden Saber |
961fps |
913fps |
-48fps |
| Remington 185gr Golden Saber +p |
1.040fps |
993fps |
-47fps |
| Triton 185gr JHP +p |
1,097fps |
1,067fps |
-30fps |
| Winchester 185gr Silvertip |
922fps |
875fps |
-47fps |
| CorBon 200gr JHP+p |
1,072fps |
1,019fps |
-53fps |
| Speer 200gr "Flying Ashtray" JHP |
988fps |
907fps |
-81fps |
| Triton 200gr JHP +p |
1,091fps |
1,041fps |
-50fps |
| Black Hills 230gr JHP |
939fps |
884fps |
-55fps |
| CorBon 230gr JHP +p |
937fps |
904fps |
-33fps |
| Federal 230gr Hydra-Shok |
919fps |
860fps |
-59fps |
| Hornady 230gr XTP-HP +p |
943fps |
886fps |
-57fps |
| PMC 230gr StarFire |
819fps |
784fps |
-35fps |
| Remington 230gr Golden Saber |
852fps |
825fps |
-27fps |
| Winchester 230gr SXT |
889fps |
840fps |
-49fps |
Average loss (overall): 49.9fps
Average loss with standard-pressure ammunition: 50.1fps
Average loss with +p ammunition: 49.1fps
Average loss with 165gr ammunition: 61.0fps
Average loss with 185gr ammunition: 42.5fps
Average loss with 200gr ammunition: 61.3fps
Average loss with 230gr ammunition: 45.0fps
Thanks again to Dean Speir for providing this information! |