I have one in .177, and found jsb pellets work well with the magazine with two turns of the magazine spool for tensioning. Strangely it will not shoot H&N 8`s at all, jamming in the barrel for some reason, only exiting the barrel with `dryfiring` 4 or 5 times, that is with the plus liner, best pellet I have found is the jsb exact 4.53 producing less than 5p groups at 56 yds. You can single feed pellets but it is bloody awkward and a single shot adaptor would be useful for single shot shooting.