I bought my Tikka T3 last year and stuck with the rings it came with, but I recently bought some tally lightweight rings. The only problem is that the plastic inserts in my tikka wont come out so i can put the rings on. I tried removing them with a screwdriver, but they just stripped. I got one out, and had one halfway out and ended up pushing it down. They are completely stripped lol.. If anyone can help me I would appreciate it, thanks.