Strv = Stridsvagn (battle wagon).
Swedish Strv 122 smashed a passenger car during Strong Europe Tank Challenge, on Grafenwöhr Training Area, Germany, 04JUN2018. Svenska Armén photo via Christian Marquardt.
The Strv 122 is an up-armored version of the German Leopard battle tank, with more advanced electronics, and designed specifically to fight in arctic conditions.
During wargame Baltic Operations (BaltOps) on the Tofta Training Area, Sweden, 08JUN2022.
U.S. Navy photo by Robert L Kunzig.
I edited this from various U.S. Army and NATO videos of Swedish Strv 122 battle tanks, during wargames, between 2018 and 2023:
Gunnery during Strong Europe Tank Challenge on Grafenwöhr Training Area, Germany, 07JUN2018. U.S. Army photo by Gertrud Zach.
The Rheinmetall ammo does not use a metal case, it is a combustible plastic case, the silvery color is the explosive powder inside. At the end of the case is a metal ‘afcap’ containing the primer. USN photo by Robert L. Kunzig.
U.S. Army video (by Kevin S. Abel) of timed track repair during Strong Europe Tank Challenge, in June 2018:
U.S. Marines get an introduction to the Strv 122, 08MAR2018. U.S. Marine Corps photo by Corporal Raul Torres.
NATO vehicle I-D: 
SWEDEN’S CV-90