Re: Any negatives for having a cleaning rod too long?
Use a quality coated rod and forget about deflection, riding the bore, etc. etc.
Any rod long enough to get her through. Too long? don't use the handle....grab the rod just be sure to let it follow the land through.
P.S. Shoot quality ammo only and don't clean your bore until your groups change. No faster way to screw up a great barrel than to keep cleaning it. Shoot it...shoot it some more...and when that's all done....shoot it....shoot it...then, take your time to shoot it again, four more sessions..then shoot it, twice more...now, take the rod and put it in the back of the closet and....shoot it...again....until....you shoot it. Now look at that target....its just screams shoot it...more.
Some of the best BR guys will tell you that their rigs settle down after the first 100 rounds go through then they run with it until the target says to clean it....then they have to put 100 rounds through the tube again just to get the rifle to run right.