The supposed "Plastic" debate rages on.........
I've had 4 Tikka Rifles, a 308 595, a 300 win mag 695, a 338 695, and another 300 mag I turned into a 458 Win Mag. I hunted and used all of these Rifles in various conditions and can assure anyone the supposed weak plastic parts is pure nonesense.
I used and abused some of these rifles in, on and over mountains in +30 degree weather hunting spring bears to -30 hunting Muleys and NEVER experienced a broken part on any of them.
The Bolt shroud is purely cosmetic and does nothing to affect the operation of the rifle.....the rifle will work whether it's on or off.
Plastic mags...lots of rifles use them now either whole or just the guts, they work and feed great, don't rust and are lightweight.
The trigger guard was honestly my only concern as I questioned the integrity of a rifle when the action screws holding it all together are seated through plastic.....
However the 458 Magnum survived many full house 300 mag loads prior too and then went on to survive several hundred rounds at my hand of Full 458 Mag loads. The "weak" trigger guard in the end also proved to be a needless worry.
Just my experience.......Sure if you don't like the look or feel of Plastic then great, hate em....but if you reject the rifle because of a few Plastic parts & you question durability then you are mistaken.
I will also agree that if the T3 had a metal shroud and trigger guard I'd consider buying one....they are fine Rifles and have proven to be Excellent shooters. Even a lightweight alloy(alum or ?) would be a better seller then plastic

However that's just my "preference" as I can assure anyone there is NO durability issues with Plastic.
Yes Keepsakes for the Grandchildren a Plastic rifle will probably never become.....
But for a No BS lightweight Hunting Rifle the T3 is the Cats Ass....
Have a look at the Number of them that are out there....not too bad for a rifle that's only been around a few years.
There must be something Good about them
Later.