My wife's and also a friend's 177 HP also are at least that good with the Beasts. It's got to be the nicest to shoot in our whole collection .... well maybe second to her Wolverine R.in 177... but that's more limited in range. Part of both being nice is that we have silencers that make them incredibly quiet. They are just very mellow and quiet and VERY accurate ..... both with their factory barrels. A couple of notes, though. The Beasts in this barrel really need to go fast. At 930, groups were really falling apart after 75. At 970, they're hangin in till past 100 as well as seeming to be more accurate even. We've not found a good combo at sub 20 ft lb, yet. Haven't tried REALLY hard , but it just doesn't compare to the W R for sub 20 ft lb. Your results may vary, of course. Lastly , the barrels in the standards are shorter AND smaller so not interchangeable with the HP poly's. All HP's are poly's.
The 25 cals use a lot more air and technique is much more important for real consistency , fwiw. They DO smack harder if that's important.
I've not shot any of the Wolverine HP's except the 25, so can't give you a reference there. The W R 25 HP is a wonderful rifle but I feel the 22 is a better fit there. Btw, I LIKE the W R stock so that's definitely a personal thing.
Bob