ACIS / MDT magazine

[steveanag]

Hi guys
I have a 7SAUM in a Tikka long action sitting in a MDT chassis. I'm finding the MDT 300WM magazine a bit of a hassle as you have to tweak the feed lips to suit the 7SAUM & have the occasional feed issue with them. what would be the best magazine to run to avoid these issues ? or what can i do to the current magazine to eliminate the feed issues of running a short action cartridge in a long action magazine ?

thanks in advance