Here is my take, and others may disagree. But....
I have owned three break barrel pellets rifles. None—let me repeat that—none had what I would call decent accuracy. Neither the Umarex ones (an Octane in .177, and a Turq in .22 caliber) grouped. Five shot, 25 yard groups, averaged over 1.5 inches. The Crosman Shockwave was the worst of the worse, at about double that. This irrespective of the advice from Pyramyd! By the way, this doesn't address the really hard cocking, and the variant-search for a pellet that wouldn't have errant nutations!
I can, if I do my part, keep 25 yard groups at 1/2 inch using my Benjamin 397. I still get an occasional nutation, but that is a pellet issue, not the rifle itself. And yes, it is easier for me to make several somewhat easier pumps, than one great big one!
To each his own, but I will never buy another break barrel, no matter who made it, even if it has all 5 star reviews!