Oops I did it again.

[Buck Conner1]

Green River only offers 15/16 inch barrels in .45 cal. to .54 cal.  You go much larger you would need to use light loads and if sold you could have a problem. I know this from a custom Rice barrel 15/16 inch .58 cal. having issues after some normal loads were run through it (ended up junking that one for safety reasons).   :cools:   :thumb down:

 

[exMember]

Yes investarms used 15/16" barrels for their 58cal hawken rifles.