Tikka t3x Varmint feeding issue

Factory plastic mags? What is stamped on the top of mag for size? I’ve got a varmint and when I ran with factory mags I had no such issues.

No Problems with mine using factory ammo

Possibly weak spring or follower hanging up? Try taking it apart and see if any weird wear marks or burrs inside.

I’d say it’s the mag. My 223 varmint doesn’t do that

If the follower can be removed from the magazine, bend the spring to where there is more pressure on the back end. Thats basically the fix for ctr mags. I just dont know anything about the factory lite mags.

I know of a few guys here in Australia who use the tikka 223's as their kangaroo shooting rifles. Some might shoot 100 rounds a night if they find large numbers of roo's to harvest and shooting maybe 4 nights a week all year. With obvious down time for holidays and other things.They were wearing out a few factory plastic mags a year. I believe they got the plastic mags with the steel feed lips when they became available. They were experiencing the same issue you are having. The feed lips were wearing away allowing the rounds to sit up at the front which allowed the back to drop down and fail to get picked up by the bolt.