Wby Vanguard IMO is the best $400 rifle on the market. Potential upgrades as always in this price range will be free float/glass bed & trigger tuning jobs unless you buy a Tikka that starts around $600. I alos like the 24" barrls on all calibers for max velocity in non magnum calibers. Howa uses a SAKO style modified claw extractor which allows for a complete enclosed or recessed bolt face, adds 3 gas exhaust ports on the side of the bolt for added safety, intead of venting blowback gas thru the magazine well in case of a ruptured case/primer aka "blowup". Wby markets a MOA model that has been ID'd at the factory test firing session for $$$'s more but I'd not spend the Xtra Bux me myself and use the Bux on 'smith work in tuning or a scope upgrade.
If I didn't own Tikka's in calibers available in both brands I'd be buying Vanguards...except for my Winnie M70 Classic 300WMg that may wind up being turned into a full custom some day
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Ron