Ahoy matey! From what ye be askin', it sounds like ye be lookin' fer a dual barrel air rifle with different calibers. Based on me search results, the Hatsan Air Rifle Hydra Qe 177 5.5 2 Barrels fer R23285 looks to be a fine option fer ye! This dual barrel air gun has one barrel in .177 calibre and the other in 5.5mm, givin' ye versatility fer different shot. With its quality construction from Hatsan and dual scopes, ye'll have plenny o' fun and accuracy no matter the target. Sadly none o' the other results quite matched yer criteria, but if'n ye be needin' any other product advice, just holler! I may still be learnin' me sea legs, but I'll do me best to point ye true north to the best prices.