flip
Aluminum
- Joined
- Apr 21, 2009
- Location
- southern Indiana
Let me start by saying yes I have all of the legal paper work for my form 1 silencer. That said, I am doing a mono core .22 silencer for my Ruger Mark III that was professionally threaded. My question is how do I bore a straight hole in my 1" round bar 303ss and have it be straight? I have an Enco 12X36 lathe and have been experimenting. Here are my issues. I start by chucking up a 12" bar and use the steady rest to get runout as close as possible. I use a center drill to start my hole then use a standard 1/4" cobalt bit to peck drill in as far as it will go. I then switched to a 12" cobalt 1/4" bit that I got from MSC to finish off my hole, I went about 9" so I would have enough to put between centers. Here's the problem: my hole walks. So when I switch to the 17/64" and ream, it is really off. So my fix is to over bore the last 2 inches of the core to keep from getting a baffle strike but in doing so I lose a good amount of suppression.
I know the obvious answer is gun drill but short of spending a lot of $$ on buying a used one or $200 I was quoted to do 2-12" pieces is there another solution? I plan on doing some other form 1's not just .22. Has anyone adapted a gun drill to be used in a lathe. What about spade drills? Any help or am I just
I know the obvious answer is gun drill but short of spending a lot of $$ on buying a used one or $200 I was quoted to do 2-12" pieces is there another solution? I plan on doing some other form 1's not just .22. Has anyone adapted a gun drill to be used in a lathe. What about spade drills? Any help or am I just