Ok it’s going down in a day or two. I’m scratching my head on barrel Length 24 or 20 inches ? I’m a assuming the 20 will get me more speed but wondering if it’s enough to worry about. What your thoughts ? It will be CZ 457 with a manners running 30moa rail and still undecided on glass but it will Be FF scope in the 800-1000 dollar range. What I’m wanting is a real accurate full size feel rim fire rifle and I think this is my best bet. I will take it out to distance and possibly shoot competition. Thanks for your input