I have a Feinwerkbau 124. It is very accurate and I have had it for over 20 years. I recently sent it to Beeman to replace the springs and seals.
It has a 830 muzzle velocity which is tame by today's standards, but I have recently killed several Nutria that have invaded the pond behind my house.
I have a IZH-Baikal 46M air pistol that is very accurate. It is Russian and is a match grade pistol. I have considered buying one of their rifles. They are very well made and comparatively inexpensive compared to German products. See
IZH Baikal - Air Rifles by Brand