I assume
this rest?
I have no experience with it, but based on my experience with its little brother, and Caldwell products in general, I would not expect it to be up to the quality of the New Bald Eagle that is the topic of this thread. The BE is very stable, and has no play when locked down.
The bag on the Caldwell BR doesn't look like much. Perhaps a better bag would help. It needs to fit the stock well. That one is intended for flat bottom BR stocks and would not be suitable for rounded stocks.
Here is a pic with an AR with a round float tube on my Caldwell. The bag on it is narrow with a rounded bottom which fits it well. The rear bag is over filled and not stable. I have fixed that. I replaced it with
this one. I use my Edgewood as well when I get more serious. I bought the Edgewood for my FN SPR that I have shot a couple of local F-Class matches with. (Reduced targets at 300)
Here is a better Protektor rear bag sitting by its self (Too short here) with a front bag under the stock and an old Lyman rest that I have given away.
Believe it or not, I was able to shoot a few <1MOA groups with it and that Ruger 77-22. It is a seriously picky rifle, but I finally found something it liked.