Originally Posted by Tikkamike
I dont know about the SAUM's but the WSM's work perfectly in the long action magazines. they are all the same just some have a spacer. you will also need to file back the bolt stop.
As luck would have it, I stumbled into a t3 300 whizzum this weekend & I can second Mike's statement above. Wsm cases fit the long mags just fine. Just be aware that Tikka mags don't have anti tilt followers...