If it were mine I would shoot it a bit before doing anything else. The proof is in the shooting.
+1on this.
First shoot it. Make any scope/ sight adjustments to zero your rifle. Then analyze your target results.
If all is good then don't worry about the stock having any impact on your accuracy.
If on the other hand you can't seem to group your shots then:
1) chronograph your ammo and note your velocities. Bullet manufacturer, Bullet weight, Bullet type, and your range(s)/ distance(s) fired.
2) using factory ammo have it readily at hand
1) New rifle, contact the manufacturer and talk with a tech about your problem(s
3) New rifle contact the manufacturer, talk with Tech addressing your problem(s).
Or
3a) Purchased Used rifle follow 3 above. Should the manufacturer be unable to assist; mark the area(s) where the barrel and stock come into contact, remove the barrel, action, etc, from the stock and LIGHTLY sand the area(s) with 100 grit sandpaper, CONTINUOUSLY checking the barrel to stock fit until the wood and barrel no longer touch...using a piece of paper or dollar bill as a gauge to determine no barrel to metal contact.
You Do Not want to over sand the area(s). It's Not Necessary.
Reseal the wood, stain, polyurethane and reassemble.
5) Range time to check your rifle's accuracy and your fix.
IMPORTANT: DO NOT BE AGGRESSIVE with your sanding, ie Do Not use power tools or any aggressive filing, sandpaper other the 100 grit. Slow and easy with repeated checks.
NOTE: Since I have not seen or physically looked at your rifle and the problem you have, I can only go by your description in which case it seems you are suggesting you have a minor situation of wood to barrel contact. Therefore I have offered my advice to remedy your minor problem.
Should your stock be severely warped or you have a major amount of wood to barrel contact I strongly recommend you seek a gunsmith in your area for them to physically look at your problem and offer their opinions on repairing or replacing your stock.