Here's what it looks like with the low rings:
This is a 6x, not a 16x...just in case there was any confusion or in case I made a typo above somewhere.
While OP has no use for black powder loads, I find I get the best accuracy with that propellant, and the recoil is less severe.
Let me retract my "no interest in" black powder loads. It wasn't that appealing to me, but I do love the smell of black powder, I guess it sure could be fun, and I think you've changed my mind. I just checked, and have 4 lbs of DuPont FFg, 1 lb of Fg, and 1 lb of Hodgdon Pyrodex--all of which is likely to be at least 20 years old in unopened cans. While I've never considered using it in anything but my mortars (I have quite a few scale models), I'd definitely consider it now. Heck it would be worth it to me just to fill the air with that wonderful aroma that can't be matched by anything I can think of. The original price tags are still on two of the cans: $2.75 for the Fg, $2.99 for the FFg. Those were the good old days, I guess.
It's been stored in those original cans and those cans have been inside a steel ammo can (I know, shame on me), and in the arid environment of Colorado since maybe 2000 or so. Any reason to think age has made it sluggish in any way? I'm thinking it's like new unless it deteriorates even without exposure to air.
I'd certainly have to change my gun cleaning habits drastically, that's for sure. A hundred rounds per pound for basically free...and I've never fired black powder except from cannons, mortars and other..uh, 'improvised' devices. Time to get that experience.