I have posted in a few threads a while back as well as have followed the threads in regards to the Savage B-Mags for a long time (since the B-mags first came out). That being said, I wanted to ask a few questions that pertain to my specific case that after reading all the threads, I feel I still need to ask the question. I do apologize if they are repetitive. Thank you all in advance for your assistance.
First, a brief history. Back when the B-mag first came out, I loved the idea of the round so much that i jumped into purchasing one right away (skinny barrel version), then dealing with all the problems everyone has read about with inaccuracy, barrel touch the stock on the left side, split casings, failure to ejects and so on. I purchased a Boyd,s stock for said rifle and even though that seemed to tighten the groups, i was still looking at 5" groups at 100yds. Completely unacceptable to me. I proceeded to trade that gun in (with original stock) at Cabela,s and purchased a new HBSS version. I immediately cleaned it and fitted it to the Boyds stock (a lot of sanding in the barrel channel), only to notice that just like the last rifle, the barrel still seems to favor the left side. I then remember reading a fix where someone used some rubber shims to ship the barrel just in front of the action in order to "center" and "free float", which really seemed to do the trick. The barrel is now perfectly centered in the channel of the stock, fully free floating and seemingly ready to shoot. That leads me to my questions.
1. Should I consider glass bedding, even prior to shooting first?
a. If so, do I do the JB weld bed, or is there a better way?
2. Is this rubber shim idea good or bad?
a. Is this just as good as bedding as long as I am not taking the action out of the stock all the time?
3. Is it acceptable to fit a skinny barrel Boyds stock to a HBSS version as long as I do the sanding to make it fit (like I did)?
4. Are there any other upgrades, modifications, or other steps I should take prior to heading out to shoot the new rifle and sight it in?
a. Other than using different ammo. I do have boxes of Hornady, Winchester, American Eagle. All 20gr. I want to make sure I get on paper with those, then was thinking a bout comparing these to 25gr rounds as well.
5. What have people seen better accuracy from, 20gr or 25gr? So far I see mixed responses on this.
Again, I know it was a long post, but I really do appreciate your help, assistance, opinions, or any other information you can supply me with this rife setup.