You know over the past 20 years of being an avid shooter, reloading, Ar building, wildcatting and even bullet casting one gun I’ve never remotely been interested in owning was a 10/22
But now I have the itch to build a max accuracy effort 10/22 for our local rimfire benchrest matches.
First I would love to hear about your accuracy builds and how well they do or don’t shoot.
Second: Do you suggest even buying a Ruger to begin with or building a completely aftermarket rifle like you would an AR15?
I felt that same need a few years back. Rather than trust the repetitive hashed-over and over again ideas as offered on a certain site that touts being the "all-in-answer" to what MUST be done to make a 10/22 rifle shoot the same as all the member there, rifles will do, I first looked over many of those folks who really compete in .22 semi-auto rimfire matches to find out what they are doing and using.
I'll stick with what your initial plan involves, the Ruger 10/22 and it's clones. When T/C developed their version of that rile, they did a darn fine job, and it's too bad that they've sorta left that market, and prices for used ones are up there.
Tony Kidd has an excellent reputation for his triggers for the 10/22 style rifle:
I have and use these two and don't regret the purchase one iota.
KIDD offers several style of barrels that he guarantees ½-inch groups at 50 yards, ask him for which brand of .22 rimfire that involves. Without starting with a GOOD barrel, you'll be better off trying to catch a fart in a bottle.
I'm not a plastic, or composite stock person. I like a good laminated or properly dried, tight grained walnut stock that has been well sealed, but there's no doubt that a composite stock is the most popular these days.
As you mention, this is for benchrest shooting, so a good, clear, glass set up is paramount. I much prefer an optic with an adjustable objective and the ability to adjust windage and elevation in 1/8th increments.
I didn't start with the Ruger 10/22 investment cast receiver, I chose to use the KIDD "machined aluminum" receiver due to it being held to much tighter tolerances than a casting will produce.
Now, KIDD is not the "end-all" place to shop. Volquartsen offers some very fine 10/22 look alikes, as does several others like Tactical Solutions, but as for me, I just looked at many reviews that were produced from satisfied customers, and there always seems to be some who prefer to provide a not-so-good review just for the sake of being ornery.