My mindset is to ask many detailed questions to gather data and then do my own testing. A lot of variables to consider along with the barrel channel. My first attempt was on a Remington 700 I transplanted into a Bell & Carlson stock. It shot better right away. Then I bedded the action, recoil lug and 2 1/2" of the chamber. The stock was inletted for a magnum barrel so I taped the bottom of the barrel to free float it. It actually shot worse. I sanded the chamber area to float the whole barrel and a gun that at best shot .6-.8 MOA @ 100 yards now has shot several .2's, many .3's and various loads average .4-.5's.
Rifle # 2 is a Winchester mod 70 (built 1965) with the chamber supported, barrel is floated. It suffered from vertical stringing so sanding out the chamber area solved that. A few hundred rounds later the barrel was shot out. I had a very knowledgeable guy install a barrel cut to 26" with a tapered profile. He opened up the channel to fit the new barrel profile and he floated it forward of the recoil lug. This stock is the original wooden stock and it shot very well on my first load development. But the stock needed some work. It was oil soaked, the forearm was warped a little and I wanted to bed the action and recoil lug. After researching bedding heavy barrels, I added 2 supports for the barrel in the barrel channel. After getting the correct height for the supports, I bedded the action first and the forearm channel a couple days later. I ended up sanding for more clearance so I could seal the stock and still have enough gap. I haven't shot the gun very much maybe 30 rounds so far. After sighting in the gun we dropped at 500 yards for a few rounds. I also shot at 670 & 820. A week later I was back out shooting about 470 yards. The bullets hit right where the shooters called their holds, it was stupid easy.
Every gun is different. Do your own testing