Don't get a new trigger. Weatherby has a good one already.(my opinion) Replace the spring with one from Ernie the Gunsmith add a 'lil polish job and you're all set. Great trigger and I can easily do it myself. Not sure of your desires or interest in final outcome of the project, but the capabilities of a 338-378 will likely outshine yours. If reballeliing is on your short list, look at a standard 338 lapua. Your bolt face will already work. If that's not exotic enough, there's a few improved versions out there. Better brass, performance that will leave very few experienced shooters wanting. Or just stick with your rifle until you burn up that barrel and and your desire to experience recoil in a totally new way. Not nearly as sexy, but if it were me, I'd go the other way and run a 300 Norma ( or improved or 338) on Lapua brass with a 9 twist bbl at 26" ( plus the can). That way, you can still load the mag box. Lots of other reasons too, but my thumb is getting tired!!!