Used both SR6 and SR12,sent the SR6 back for replacement something weird when the eye came off centre slightly. Preferred the SR12 over the SR6 althought it is ment for .22.
Really nice out to ranges but I have problems with shorter ranges 8-17yards where the sight pcture becomes free of blur( eye muscles not doing their job too well these days
Use Bushnells now, 6500 although it too has parallex problems if your not careful on set up on target.
Did have success with 3200, not sure the change made that much difference,but the 6500 is better at defining a back lit target at distance.Both Bushnells scopes give a clearer picture at the closer targets but I have had to set mag to 8x and parallex real close on the 6500.