lite2shoot recommends a good guy. I think if you shortened it 1.5" and rechambered it would be OK. If you spent the money to recontour it may quit shooting and you will have a lot of money in a used barrel.
Butch
Well , you are right Butch about the recontouring.. The way the barrel was made dictates if it will propably tolerate much metal to be removed from the outside.
Cut rifled or good button rifled barrel that has been stress relieved would proabbly be OK. The problam with most factory tubes these days is that they are hammer forged and many of them start doing strange stuff when too much metal is turned off the oruside.
Actually no matter how any barrel is made, the outside contouring needs to be done slowly with only a bit of metal removed with each pass.