I have a Mark II Safari in .243 Win. It's a gorgeous rifle. It's not a target rifle, but it's not designed to be such. It has acceptable accuracy for what it is. I've worked up good hunting loads for mine and I see groups 1"-1.5". With factory loads, you should not have a problem on game at "reasonable" distances. As others have mentioned, it's not a light rifle by today's standards but if it's something you want, it's something you need.
I needed a BAR... that's just the way it was when I bought mine. It's beautifully made and it's a classic design. I don't even hunt anymore, but I do shoot weekly. The BAR is enjoyable to shoot and pretty easy on the shoulder, so I do shoot mine, just for fun. If I were to go hiking in the mountains with a rifle, I would likely carry my Tikka though.