.45 Colt. Fun to shoot. Versatile to reload. Formidable in my model 25-5.

S&W model 25-5
Ruger Old Vaquero 5.5".
Ruger Blackhawk 4.7"
Uberti 1873 4.7"
Marlin 1894

The last 5 guns I would ever get rid of!