I have that exact barrel on my 870. Got it last season when I had to send my Benelli in for some touch ups before the warranty ran out and it was gone for the whole season. Shot it with the primos jelly head and tightwad chokes. Tightwad was very even and has accounted for 3 gobblers in the last 2 years.
I like it a lot for hunting from blinds on rainy days very easy to maneuver. With LB # 4 it was too tight for me so I went with 3" mag blends.
LB #4 put 141 in 10" circle and magblends put a more even 160 in with room for error.