I mounted this scope on the Bone Collector series TC Triumph. I used the Leupold 1-Pc Dual dovetail mount/base. With the Leupold high(.90") dovetail rings.
This gave me about 1/4" or less clearance between the 40mm bell of scope to the barrel. This height put the scope right there comfortably when I anchored to aim. With the length of this scope and to fit me with the proper eye relief of the recommended 4.7". I had to take off the rear sight on the gun for scope clearance. Which, i didn't mind because the fill screws that went in the pre-drilled scope base holes fit perfectly in the two rear sight mounting holes. I can't say the same for the front sight. Front sight has a bigger mounting screw size. I left front sight on and it doesn't interfere with picture through scope. However, if I look hard enough I can see a green fiber optic glow which is very faint and not noticeable unless I'm looking for it. Wouldn't change a thing.
Sighting in? As of right now I have not shot past 100yds to test the SA.B.R. aim points. But it took me all but 5 shots with my TC to put 3 bullets inside a circle the size of a silver dollar at 100yds. That's using a Caldwell Sled for a good rest. 250grn. TC shockwave super glide bullets with 100grns(2pellets)of regular Tripple Seven.
My brother and father both the Nikon Omega and I can honestly say I like the reticle on this Leupold Ultimate Slam better. It's bolder and I do believe it'll be easier to see in lower light conditions versus the Nikon Omega.
I like the solide aiming SA.B.R. dots better than the Nikon BDC aiming circles. In my opinion the Leupold Ultimate Slam was marketed better than the Nikon Omega. By saying you can use the Ultimate Slam with any load of your choice from 150grn/3 pellet loads, to Sabot shotshells, to 50grn/2 pellet loads. In honesty the Nikon Omega works the exact same way just not stated as clearly. With the Leupold to use the SA.B.R. aiming system. For 150grns/3pellets of powder 250grn sabot bullet. You turn the scope power to the 3 pellet setting. Which is really 9 power. For a sabot shot shell... say you mount scope on 12 gauge shotgun you turn scope power to shotshell icon. Which is really 8 power. And for 100grns/2pellets of powder 250grn sabot bullet. You turn scope power to the 2 pellet/100grn Icon which is 7 power really. Then once you zero the center of your crosshairs in at 100 using any scope power you must use the power setting and keep it there for any shot beyond 100 where you'll use the SA.B.R. aiming dots. That I have not got to check out past 100 yet.
Overall I'm very satified with this scope and would recommend it to any of my friends. Optics are clear. Scope is high quality and you get that same feeling when you take it out of the box. American made and quality control is evident. And as I've heard from other veteran Leupold users. They take a beating and keep on performing/holding zero. Wonderful scope. I'm very satified and expect good results after further testing on extended ranges.
This review was written in the old system and had content requirements that are different than reviews written today.