Friend of mine has built somewhere's between a dozen and two dozen heavy-barreled varminters on the Savage 110 action (I'd have to ask him to be sure), mostly with the .532 boltface. Also a few on the .473 face, such as 6mm-06, etc.
<br>300 Win. mag Savage actions are fairly inexpensive, which is why he started using them many years ago, to build wildcat varminters.
<br>He's also built rifles on M700 and M77 actions, just prefers Savages as they're easier to rebarrel and more economical to acquire. Bottom line, the Savage actions work just as well as the others.
<br>Many of these rifles are variants on the 300 Win. case (6mm, 257, 6.5, 270), so that particular action is a good beginning.
<br>BTW, none of his rifles have aftermarket triggers on 'em. The trigger on the 22-06 he built on a 110 action for me, was at 2 and 3/4 lbs when I bought the rifle, used, for the action. Didn't fuss with it....yet.
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<br>Just saw a used 110 in 300 Win. for $285 or thereabouts, last trip to my favorite gunshop where I bought my used 243 M110E for $200 and change earlier this year.