Tikka M+ medium plus plastic Magazine

It's a factory M+, came with a creedmoor. 3 rounds.

Google suggests it fits these but I can't confirm 

260 Rem, 7MM-08 Rem, 6.5 Creedmore, 243 Win, 308.

I don't believe these are perfect matches but this is the cabelas equivalent

https://www.cabelas.ca/product/5906/tikka-t3-flush-magazines