Never had a problem with mine either. As I said, I haven't replaced it because it works. But it's about the only piece of plastic on the rifle and because of that it stands out rather as an afterthought on an otherwise very high quality gun. And the fact I've also got a Sako 75 and it feels "complete" with it's steel mag.Never had a problem with the "cheap and tacky" polymer magazine in my .222 rem model 595. I put something like 14,000 rounds through the rifle in the time I had it and never ever any issues with magazines whether polymer or metal. I tended to use the polymer magazine more than the steel one as it lay flush with the stock. The longer 6 round steel magazine would be used mainly on the range or to carry spare rounds when in the field.
The same goes for my CZ 452, both magazines (5rnd and 10rnd) are polymer and I've lost count of the many thousands of rounds that I have fired through that rifle over the last 16 or 17 years, never any issues with either. So while I know that many shooters prefer steel magazines and will opt for those, my personal experience is that single stack polymer magazines can and do work. Seen a couple of double stack polymer magazines on rifles that seemed problematic though and the odd one on a single stack Tikka T3 that had to be replaced.
I few years ago I used to do a bit of range shooting with the Tikka and I could have done with a five shotter then.

