i Just purchased a SBE II 28in barrel in Feb. and shooting the rhino 660 with hevi #7 3.5" 2.25oz loads yesterday i got 258 in the 10" circle at 40 yards. i also shot the nitro 51013A 4x5x7 and got 209. my poa and poi was also off to the right so i went with some williams firesights hope this helps