..............Put brass round head machine screw (Head Diam=125% of Bore)in drill press. Apply JB bore past to screwhead. Turn on Drill press...............
What is the most common angle used on airguns? Do different calibers require different angles?
Mr Potterfield is using a 11 degree included and Mr Tim is saying a 15 degree included. I was just wondering if there is a preferred angle for airguns. Getting the face and angle/radius square is very important to accuracy.
I have chopped and crowned all my airguns using very basic tools with excellent results. I use the same method as SciGuy, and finish off with a hard felt dremel polishing tip with polishing compound.
I used an angle grinder with a cutting wheel on it. Just make sure you stuff a pellet down past the cut off point so as to keep the grit and shavings out of the bbl. And far enough past the cut point that the heat from cutting doesn't weld the pellet in place, like 2 inches.