Unobtanium Posted February 23, 2017 Share Posted February 23, 2017 This poll applies to all the super 90 series, with a special focus on the m4. After zeroing with slugs, if you take the weapon down to clean it, and then shoot slugs (the same brand, load, etc obviously) as before, have you noticed a zero shift? For the sake of argument, since this is not a scalpel, I consider a zero shift as greater than 1.5" at 25 yards, extrapolated further in a linear fashion. Quote Link to comment Share on other sites More sharing options...
Vortec MAX Posted February 23, 2017 Share Posted February 23, 2017 Well, I do know I seem to "chase" my "zero." It very well could be a shift that happens when I disassemble for cleaning. I guess maybe I should never clean it Mike Quote Link to comment Share on other sites More sharing options...
Unobtanium Posted February 24, 2017 Author Share Posted February 24, 2017 Well, I do know I seem to "chase" my "zero." It very well could be a shift that happens when I disassemble for cleaning. I guess maybe I should never clean it Mike How much chasing do you do? Quote Link to comment Share on other sites More sharing options...
Vortec MAX Posted February 25, 2017 Share Posted February 25, 2017 How much chasing do you do? Sometimes it is bad enough that I can't hit a 11 x 22 target at 100 yards anymore. I have to start again at 25 yards and work out to 100 all over again. I thought maybe my optic was moving or my barrel was fouled. Mike Quote Link to comment Share on other sites More sharing options...
Unobtanium Posted February 25, 2017 Author Share Posted February 25, 2017 Sometimes it is bad enough that I can't hit a 11 x 22 target at 100 yards anymore. I have to start again at 25 yards and work out to 100 all over again. I thought maybe my optic was moving or my barrel was fouled. Mike Well if the barrel being fouled is the fear, this implies it wasn't taken down for cleaning...? What optic and what attachment method? Quote Link to comment Share on other sites More sharing options...
Vortec MAX Posted February 25, 2017 Share Posted February 25, 2017 I cleaned it, but it still had a buildup of lead from slugs. That was until somebody on this forum led me to the Hoppes Tornado brush. I have been using an Aimpoint T-1. I have used two different mounts for it. Most recently has been the Midwest industries low profile mount that allows you to co-witness the ghost-ring sights. Mike Quote Link to comment Share on other sites More sharing options...
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