Well this is my first rifle with a barrel nut and I need some direction on what is the correct direction to my goal. This is what I have, Shilen built DGR rifle in 243 Win. with a Remage barrel nut, 26" long, straight taper to a muzzle dia. is 0.82", Stiller action. Really is a beauty of a rifle, but WAY to forward heavy. I knew this going into the buy, but I have quite a few heavy weight 6mm's and I need a lightweight walking varmint rifle.
My goal is a sporter weight barrel at about 0.65" dia. and may elect to cut it back to 23" or so. Local gunsmith says he can taper it down, but due to stress in machining may not shoot very good afterwards. Is this true in regards to the stress. I do not have a barrel nut wrench or barrel vise yet. Not sure if it is possible and what may be all involved, but is it possible to get rid of the barrel nut completely using this barrel?
Just looking to really lighten it up on the barrel end and not sure if I like this barrel nut setup yet. One final note is I just love accurate rifles, and if it is not accurate in the end, it's going down the road.
What are my options with this setup? Am I missing anything? Also looking to keep the cost at a minimum.

Thanks for all the help.