Both my Anschutz Rimfires ( 64 MPR 64 Action with a bull barrel and my 1907 54 action match single load ) are considerably more accurate at 50 and 100 yards than any of my PCP’s. This true whether shooting groups or for score. Both have match 2-stage triggers that break between 4-6 oz).
I save all of my range paper targets ( N50, EBR 100 yard ) and my personal experience is that the Rimfires are easier to score with vs. PCPs with good ammo. Even with average ammo, both rifles shoot more accurately than my PCPs. The Thomas air rifles are the exception in terms of parity, but those are extremely accurate especially the slug guns that shoot 40g slugs. If you look at the N50 match results there are some very good scores with Thomas HPX, FX Crowns and RAWs at 50 yards, but those are also very accomplished N50 Competition shooters achieving those scores.
My Benchrest PCPs - I have a Boss .30 Caliber, RAW HM1000x .22 HP, Daystate Redwolf Safari .22 HP. All shoot very well also, but there is still a clear edge going to the two Annie’s.
I love both disciplines and enjoy shooting both RF and PCPs frequently.