Ruger rings if not lapped before they are installed are some of the worst rings on the market.
what are you basing this on?
ive owned just about every type of Leupold ring on the market and,
IMO, the factory Ruger rings are superior to the current production Leupolds that are under $100, and the mounting system (integrated base) is
far superior unless you specifically need a tapered base with built-in elevation like a 20MOA base for 1000 yard shooting. in this case i admit they are a disadvantage, but can be worked around.
ive used 5 pairs of Ruger rings on 4 rifles so my experience is limited to that many, but ive never had
any problems with them and was always impressed with their quality and the sturdiness of the mount despite the fact that it pretty much is a 'quick release' system. removing and remounting Ruger rings - if tightened slowly, evenly - also gets the scope back closer to zero than other systems like Weaver style QR rings. this is great if you have one rifle with 2 separate scopes/sights you interchange on it.
you could argue that just about
all scope rings on the market could use lapping.
im not an advocate of ring lapping, i think on a set of quality rings its just about as much baloney as the complex barrel break-in juju ceremonies people push. many people use something as primitive as a piece of dowel and sandpaper, and thinking that you can do a better job than the factory by removing material with this is absurd.
ive
never had a scope come lose, ever, from any type of ring ive ever mounted them in, and never damaged or bent a scope tube from mounting.
im not saying to go buy a Ruger because of the rings. i simply like to point out that when buying one you get a good pair of rings and save quite a bit of money. so when you are comparing, say, a $700 Ruger to a $700 Tikka, the Tikka is actually about $100 more. last time i priced Optilock rings and bases for a Tikka they came out to $170+tax actually. if Tikka included the Optilock rings and bases with their rifles, they would be
much more 'fairly' priced. my
only problem with Tikkas is they are overpriced for what they are. if a Stevens rifle cost $600, or a Savage $1000, i would be ripping on them constantly... but they dont.