R-7 ditto. also Diana 35 or detuned model 34 so it shoots at around 700fps. I bought the model 34 for exactly the same reason you are looking at a pellet gun. I saw this one in .177 for a good price and just bought it. haven't been sorry. every pellet goes where i call it at 30 feet. I shoot it everyday and it is breaking in nicely. I haven't even tried it with the scope yet. It really helps with your shooting form, breath control, trigger control, sight alignment sight picture, it should translate very nicely to your cartridge rifle shooting.