I have 2 T3's (.30-06 & 7mm-08) and I have B&C stocks on both of them.
They definitely change the feel of the rifle (for the better IMO.) as far as fit and recoil is concerned. These stocks are a little heavier than the factory stocks. This can help with your accuracy. They were both drop in and perfect as far as fit and finish goes, no issues with the barrel floating all the way back to the recoil lug. I like the full length aluminum bedding block, this stock is MUCH better than the factory stock when using a bipod as there's no flex. I hand load for both of them and they are both sub MOA.
Besides all that, I think it's a better looking stock. I like 'em.