Years ago I bought a Vanguard 300WM, it came with the upgraded stock and the sub MoA group target from Howa. Time was before Vanguard had the sub-MOA floor plate to charge more money for the same rifle. I hated to shot that hard recoiling skinny barreled 300WM. I fired 5 rounds and it stayed in the safe ever since.
Fast forward to a month ago. I was invited to go on an Elk hunt in CO. To mitigate the recoil for the sake of my shoulders that are scheduled for replacement this coming year, I decided to install an APA Gen3 MicroB. What a difference did it make. Here is a video I saw that convinced me to go the APA route, incidentally their test piece happens to be a Vanguard. FULL DISCLOSURE, I am not employed nor associated with APA.
One of my lathes is pretty handy for shorter barrels and muzzle threading without taking the barrel off.
Before the scheduled trip, off to the range for the final cold bore shots after initial zeroing the previous day. Fired one round, then mess around with load work.

Before packing the Vanguard fired another round on the cold bore target. Range is 200 yards on standard NRA SR-C target. Pictures were taken through the spotter.
Plenty good for mid range shots. Ammo - 185 Elite Hunter, H1000, mag length.
The rig is nothing fancy, scope is an old Nikon Monarch UCC 2.5-10, Timney trigger, and I paid to get it bedded. Barreled receiver is stock
Sad part my Asthma kicked butt that I had to cancel out on the trip.