I have a Tikka T3 in .260Rem that is in an Whiskey 3 chassis. I can put my TRG22 trigger group in the T3 which is awesome.
I have put the Whiskey 3 chassis butt on the TRG to shoot cheaper .308WIN for training. I use the TRG factory forend on the TRG with AI magazines but they are a bit floppy...