Thanks for the info EE and trplem, before you guys posted to my inquiry I got on Gunbroker and Gunsinternational and began looking around, I suppose the N frames are stronger then the K frames? plus, I called and old friend to discuss, he said he has a 586 no dash whatever that means, that he 'may' sell me.
I think a clean old N frame will be a better running mate for my 1955 45 acp.
If you can buy a 586 I would pursue that.
Well this has been a fun thread, found out I needed another revolver, just didn't know it before, will be on the lookout for a pre or m-27 pinned and recessed 5 or 6 inch barrel, that'll do it, and will sit well with a 45 cal model of 1955, which I think is also an N frame.
To add further confusion, gunshop buddy called this morning and said he found a 4" m-66 at the house, wants me to come by and look at it.
this chit never ends!