Been there and done that. Not a "true" custom action but did have a SS Rem 700 action blue printed, shilen select match barrel, custom trigger, custom stock, bedded the whole show. Barrel threaded 5/8-24 for whatever my choosing. Guy offered me way more than I had in it so i sold it. Picked up an older T3 308 SS. In its stock form, I free floated the barrel, put a limbsaver pad on it, and replaced the trigger spring. The stock tikka's action was slicker than the 700 and it also shot just as good of groups or better that the custom build for 1/10 of the price. I'll never go full custom again. Take a Tikka action, several barrel manf make prefit shouldered barrels in carbon or SS, and also several different stocks for it.
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Or you can even just take a stock Tikka (this is my CTR in a roughtech tikka stock with standard T3 bottom and mag), free float barrel, put a recoil pad (if you desire), trigger spring, Victor cheek riser or one of your liking and spend the money you would have spent on the gun, on ammo and go shoot shit. JMO though.
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