Spee-D-Loader. This is the only .22 rimfire tubular magazine speedloader available that allows you to spend your time shooting instead of loading. Reload your magazine tube in seconds and stop fumbling with a handful of loose ammo. Eight 15 Round loading chambers hold a total of 120 rounds of .22LR, loader works with all .22 ammo, as well as .17 Mach II and .17HMR. Load your .22 ammo at home and spend more time shooting! Most tube .22 rifles hold about 15 rounds. That's eight reloads in just seconds.