Any hollow point will do the trick. I am impressed with the Mexican stuff, Aguila. Nice snap to it, never had a misfire,does the job on gophers. I've used thousands of blue box Federal, Winchester 333,555 etc. Also used lots of Western, some Remington Yellow Jackets, NOT the dirty crap.
No need to over think shooting gophers. If you get in a good patch, it will mostly be closer range blasting. I've shot gophers with a shotgun on occasion. I've starting using 17 HMR as well. 22's rule, though. Nothing like getting in on a all out attack.