I have been unable to get acceptable groups with my Henry Ball #140. After numerous trips to the range and trying every combination of bullet, sabot, primer, powders and powder weight known to man, I knew something else had to be the problem. I checked to make sure the fromt base screw was not bottoming out. I decided it had to be the scope and decided to change it out(Nikon Monarch Gold 3X10X56). I had the same type scope on my T/C Encore and swapped the two. After reassembling the Warne QD rings and tightening all the ring screws, I noticed the recoil lug bar on the bottom of one of the rings had slight movement, the other one was tight. When mounted and locking the quick release everything seems solid, but I continue to wonder if the slightly loose recol lug is the problem. I plan to call Warne on Monday and get their opinion, but thought someone in the forum may have some experience with Warne rings and know if this is a problem.