22 hornet
since you are asking i will give you my opinion. i have owned a hornet for several years and have reloaded for it a little bit as well as shooting factory ammo. i have heard some people say that the hornet is an obsolete cartridge that is surpassed in performance by so many modern cartridges that it should be forgotten. i fully disagree. the hornet is a great round if you only expect it to do what it is designed to do, that is to perform as a light duty centerfire varmint caliber for shots up to about 200 yards. the hornet is fully capable of taking coyote size game up to this range, and a little further on gophers. the almost non-existent recoil and subdued report of the hornet are very desirable characteristics, especially if you live in an area where you may annoy near-by residents with a larger rifle blast. the down side of this cartridge is the cost of the factory ammunition, almost one dollar per round. if you reload then the upside increases dramatically as a pound of powder goes a long way when you only use 12-13 grains for a typical "hot" load. you will be limited to bullets under 55 grains because of the twist rate in most hornet rifles, and the brass is thin so caution is required when resizing so you do not buckle cases. all in all i feel the hornet is in the same class as other classic calibers created during the same time period, namely the 30-06 and the 375 h&h, timeless cartridges that have an old world charm.