Yes it will stick to the scope tube. But it could be so hard that it just cracks and flakes off much like any other LocTite when you peel off the rings. The scope moving in the rings is a REAL problem that you must solve however you please. What I did was adequate. I never took the scope off so I don't really know how hard it stuck to the rings. The scope never moved again.
It was several years back and I don't really know what we had invested. We started with the gun and the other cost just kind of came in. Once committed you can't really go back. So we just plowed ahead, financially. It was two of us so that helped but....
I would never spend $4300 on this kind of project. This is not a gun you will shoot often, I suspect. A lot of ranges ban 50BMG (50DTC) because they have the potential of starting grass fires. Our local range had one of those fires (Not by me...we only shot the gun in the remote open desert). The reward of having one of these guns does not come close to matching the expense, at least for me. I could have 8 handguns, or 4 rifles for this kind of investment. I was kind of pressured into it originally without really knowing how expensive it would all be. But hey, its your money and your passion. Do as you please.
As an aside and part of our story, we even had trouble buying the bolt upper. We got all the reloading stuff and scope (expensive) and when we went to buy the 50DTC bolt upper, BOHICA was refusing to make anymore 50DTC guns after the open bolt accident (per their lawyer demand). So we were half in and could not get the upper. I pleaded with the owner and he finally agreed to sell me the 50DTC upper if I signed a waiver releasing him of all responsibility. The lesson is get ALL the ducks in a line first.
To say this whole 50DTC thing was traumatic to me is an understatement. The son-in-law and I, during all of this, had a falling out (over inheritance of all things) that has not been mended to this day. Too bad as we were shooting buddies. I'm still close to my step daughter and her two girls but don't see them much anymore. But not to fret as my son and I and his two kids are extremely close. Such is life!
LDBennett