CCI subs are great but hard to find and cycle a 10/22 unlike quiets. CCI standard is reliably subsonic unlike Remington standard velocity, which I will never buy again. Winchester subs are not very accurate. Fiochi subs is good ammo. Wolf is reliably subsonic but I save it for rimfire...
Primary Arms is the best bargain optics out there. I've had one for four years, that I got used, that holds zero prefect. Thousands of rounds through it, including a good bit of 7.62x39 and 12ga.
Not my best, but I called it. But really, the best I did was 2 out of 5. Maybe I'll try it with match ammo and my target revolver, I might hit three. But that was hard.