Best quality .177 rifle pellets?

I don’t think you’ll find wadcutter style to hold up on accuracy past 25y so those R10s are doing very well. Ballistically they are really running out of steam past 25y.

Which pellets shoot most accurately in any given rifle is a different question in my mind than which are the highest quality pellet. I've measured weights and head sizes for several 177 pellets and the H&N Baracuda Match are more consistent than the H&N Baracuda and Baracuda Power Power and JSB 10.34. The Baracuda FT seem more consistent than the Match but I have not measured as many. So I think the Match and FTs are higher quality. But that does not mean your gun will shoot them well.
Just here to reinforce that pellet perfection is not the first priority in achieving precision downrange. Your gun has to prefer that specific pellet. Only then does improving the actual quality of the pellet become visible in better ballistic precision.
 
Which pellets shoot most accurately in any given rifle is a different question in my mind than which are the highest quality pellet. I've measured weights and head sizes for several 177 pellets and the H&N Baracuda Match are more consistent than the H&N Baracuda and Baracuda Power Power and JSB 10.34. The Baracuda FT seem more consistent than the Match but I have not measured as many. So I think the Match and FTs are higher quality. But that does not mean your gun will shoot them well.
It goes without saying that good quality doesn’t always equal good results but if you start with poor quality I’ve never seen excellent results. The reason I ask is I’m familiar with center fire brands and .22lr brands but didn’t know who made quality pellets to try. So far the same companies that produce quality.22lr ammunition have produced the best results out of my Feinwerkbau. It might be expected since RWS and Eley are both Olympic ammunition producers for.22 lr and produce very high quality products.

Thanks to everyone for their input.