45 caliber barrel

[Red Owl]

What is the smallest size (flat to flat straight barrel for a 45 caliber? There are dovetails to cut, etc. and there needs to be enough room. 15/16" 7/8" 13/16"?

 

[Comfortably_Numb]

13/16

 

[oldramrod]

I have several 13/16, forty five barrels. I never shoot over 50 grains under hollow based minis. While I would never use one, there was a company that made 50 caliber 13/16 barrels . 13/16 barrels work fine in 45 calibers with both round balls and mini's Many people don't realize that heavier projectiles build heavier pressures than prb . So powder charge is not the only thing to consider!

 

[Red Owl]

Well, I'm a PRB only shooter. If I want something powerful, just use a modern rifle.