It worked! It worked. Got one inch groups at 100 yards and a little smaller at 50 with a Tasco 24X World Class. The bore was dirty when I bought it and even worse now because my bore snake for 17 cal does not fit this barrel or my contender in 17 Rem.
This is the same rifle before and after barrel change. 17 HMR with 24x Tasco and other photo is 44 Mag with TruGlo Red Dot.