Turning the barrel may seem easy but there are other things to think about.. such as barrel/cylinder gap and re-cutting the throat after the barrel is shortened.. It sounds likely that you have found the problem, but I'd let Taurus fix it.. It may take a while and I have had no dealings with the product service department, so can't speak to that.. Of course that last may be a compliment, not a slam.. Give them a call, you may be surprised. If it were S&W I'd say forget it but all I've heard about Taurus was OK..