97 or 77 ???

They are the same weapon, with the same mechanics. What differentiates the 2 "sisters" is the shortest barrel in 977, which suffers less than the "time barrel" and the lack of metal sights ... always in 977. The 977 was created by the Germans for the discipline of the FT , while the 77 is a springer designed for hunting harmful pests. It depends on the use you have to make of it. If you have to do FT races the 977 is perfect, if instead you have fun, maybe without mounting a spotting scope, then the 77 is better. And then, however, it depends a lot on your taste .... I don't compete, but I preferred the 977 cal. 177, springer who has been very fashionable in Italy for more than 10 years.