I’ve had both and haven’t had any probs with them ,the 110 is about the same size as the 100k but it has a full size cylinder and barrel so well over a hundred shots per fill in .177 .mag loading is a bit fiddly on the 110 at first but soon get use to it ,and you get a weaver rail on the 110 ,+ the 110 is slightly quieter .uBoth great guns imho .