I know a couple blokes who use em here downunder, Biggest problem is that its almost a must to reload for, which isnt a bad thing if your into that or want to learn!
Both the guys are using Barnes tsx in 225gr an thats all i know in that respect.
many a Sambar has been shot with both rifles incl some big stags, all were Dead .
One guy mentioned to me, "I love how handy the little Ruger setup is, but i wish i had a 300WSM" - he isnt a reloader an relys on another bloke to do them for him, the 300wsm is due to the lower cost o factory fodder to shoot around with aswell.
cheers
WL
EDIT-
I do kinda wish i had one, but i have a wsm instead