Both the Sniper XR and the HW100 (model TK, I am assuming since you want a shorter gun) are great guns. Of course the big difference between the 2 is air bottle vs cylinder - and its impact on number of shots per fill.
I've owned or shot about half a dozen Brococks - all of them Sniper models, both standard and magnum. I've always wanted to love Brococks, maybe based on the fact that my first one (a standard Sniper XR in .177) was a truly excellent gun. But all of the subsequent Snipers I've shot always had one issue I couldn't work out- the Bantams had the cocking bolt, which ultimately I didn't like. Some have been more accurate than others, and some triggers could be tuned wonderfully, while others I just could never get to my liking. I've ended up selling all of my Brococks. But I will say that they have the power you want and a nice shot count, and don't discount their polymer stocks. They don't look as nice as the laminate stock (I've owned both) but the Brocock polymer is a very well done stock.
Since you are looking at a shorter gun I assume that you are looking at the HW100 carbine. I've had both an HW110 (rifle) and I currently own an HW100 TK (laminate thumbhole carbine). The Weihrauch guns are designed, constructed and shoot incredibly well, and l don't feel that there is much difference in use, accuracy or longevity between the 100 models and the 110's. But I will say that my current Carbine shoots only about 23 FPE, likely due to its shorter barrel. And it is rather a process to tune the Weihrauch guns to higher power levels (compared to many other guns, where the process is much easier). But even with the short air cylinder on my HW100 carbine, I still get 50 regulated shots on a 200 bar fill (3.5 magazines worth), the shot cycle is very smooth and the gun is very accurate (and has a great trigger). You just have to accept its available power without maybe significant modifications.
One gun you might want to look at is a Cricket II with wood stock, from the used market. I had one of these which had originally been tuned by Charlie Frear at Georgia Airguns. It was shooting 30 FPE without breaking a sweat (18.13's @ 860 fps). Beautifully smooth shot cycle, accurate as heck - just a wonderful gun to shoot. And nice & short per your requirements.
If I was looking today based on your requirements, and based on my experience with AGT guns, I would likely pick up the Vulcan II currently listed on the AGN Member Classifieds:
https://www.airgunnation.com/topic/wts-22-vulcan-2-package-2-carm-mags-bipod-in-stock-mag-holder-scope-and-rings/?referrer=1 I will say up front that I don't know the seller or the gun, but other than not having a wood stock it should be a great gun for your needs, and is selling for a very reasonable (in my opinion) price. This gun would be fine on the bench or pesting. And as a bullpup configuration it would 'open the door' for a later purchase of a nice, full size, wood stocked rifle to be purchased as your next PCP. Daystate Revere, FX Dreamline Classic, HW 100/110, AA S510, etc.
I tried once to have one gun which would meet all of my needs/requirements. It never worked for me. But I could definitely see myself with only a light, short, handy & robust gun for walk around hunting/pesting, and a second longer, heavier gun for plinking and target work exclusively off the bench.
