T12 Whisper.

[Besageezer]

My most recent addition is a Walnut, thumbhole stocked Whisper in 177.
It is set up with a 60mm Nikko scope to overcome the height of the magazine, the only drawback I can see. On the range it produced small thumbnail size groups at 30yds with Acupel 7.9's The trigger is sublime and absolutely predictable. Even the weight of the scope when fitted still kept it a lightweight unit. I don't know if it is fitted with a regulator or not, there is a small hole in the cylinder that emits a small puff of air on firing which leads me to believe it might be.
Conclusions so far are I am happy I did not buy the Daystate that was in the gun shop rack next to it.

[Suffolk Rifle]

If it's a Smooth Twist barrel, give some JSB 4.53 a go - at 30 & 35 yards I can get pellet on pellet/little fingernail groups with a Typhoon, or with the LW barrelled one, can get the same with the 4.52