AR-Fan,
Thanks for the reply.
I don't have a ciener kit to look at but Kurt Kustoms said their conversions (22lr) are based on the ciener, so I figure it would be easier for him to make a barrel to match what he is most familiar with.
I do have a M261, and with a little mod to the charging handle, I think I can add another 3/16-1/4 stroke to the bolt that should make up the extra length of a 22WMR or 17HMR,
What exactly did you do?
From what I can think of:
You drilled the chamber adapter for 22mag
You stacked two Marlin 7 to get 15 rounds. (I just ordered 1 each of the Rem, Marlin, and one other manufacturer to look at.)
Question:
What mods did you have to do to get the 17HMR to work right?
Since you made it work, a custom barrel would be possible, right?
I am thinking of removing the chamber adapter of the M261 and having the bolt butt to the custom barrel, would this be a problem? If I remove the chamber adapter, the only thing that holds the bolt in place is the spring/spring guide, as the slide rod isn't attached to the bolt.
I am thinking that I would have to machine a slot in the slide bar to pin the bolt to the slide bar so it wont be loose in the AR upper.