No, it refers to the 22 Savage Highpower known in Europe as the 5.6x52R, It is based on the 30-30 type case and uses a .227-.228 bullet instead of the more common .224 bullet. It is commercially loaded with a 70gr bullet and is suitable for medium game. I load it with a 55gr .228 softpoint bullet and use it for coyote hunting.
It was introduced in the Savage 99 and gained popularity in Europe in stalking rifles, combination guns and drillings, Mine is a combo gun in 12ga/5.6x52R
The 22 WMR is also known as the 22 Magnum the HP tagged on the end of either of these would designate that it is loaded with a HOLLOW POINT bullet.
