147 eldm, 20 off. 338 box.
Information only for any one thinking about trying this.
Factory tikka factory wsm magazine is too short.
The long action mag is long enough but would modification to cycle that I think would destroy the mags integrity.
The new metal factory replacements might work( with modification)//uploads.tapatalk-cdn.com/20181030/31e7eb3f8624b4f5d478d7d378d55162.jpg[IMG] but I am going to continue in this direction. This mag holds 6 rounds and feeds without issues.[/QUOTE]
Thanks for the pics/info! I might have missed this somewhere, but what bottom metal are you running?