I have a DNZ mount on a Marlin 39.
Yes. It is a big, chunky, solid thing that would surely be plenty strong enough for any imaginable gun.
The big advantage this mount offers is it's one piece design.
See, in order for one thing to move in relation to another thing, there has to be a place for such movement to take place.
Some rifles have bases bolted to the rifle it's self, and then rings clamped to the bases, and then the scope clamped into the rings.
Let's see... between the rifle and the base, between the two rings and the bases, and between the two rings and the scope-
By my count that's five different locations where movement is possible. and as we all know, even the slightest movement will cause a shift in where the bullet lands.
The game reaper has two possible points of movement- at the rifle, and at the scope. I count the scope clamps as one, because they are one piece and one cannot move without moving the other. It really is one solid piece.
So what?
Well... I can tell you this: That Marlin 39 stays zeroed better than any scoped rifle I have ever been around.
It's been dropping rounds right where it's supposed to for a couple years now, and never needs the zero adjusted.
Back when it had a conventional base and rings, it had to be re zeroed every time it went to the range. When you consider that it's primarily used at the range, that translates into adjusting the zero every time it gets used.
Yeah, some of the more expensive setups might be a little more attractive than the game reaper, but the game reaper WORKS.
I took this crow at an estimated 125+ yards, sitting with my butt on the ground and the rifle resting on my knee, cold bore first shot of the day. Hit him dead in the white meat and dropped him right where he stood.
You can't do that kind of stuff if your scope isn't mounted rock solid.