How much experimenting have you done with your loads? The fact that your stock is already glass bedded leads me to believe you won't see that much improvement with a new stock. A barrel might be an improvement, and at that point your bedding will be useless, so a new stock would be needed, or rebed the current setup. 1 moa is actually pretty decent, you might see an improvement with your current setup by switching to berger bullets. I like the classic hunter bullets, they are less sensitive to seating depth than the hunter VLD bullets. Moving to bergers was a game changer in my 300 win mag, shrunk the groups a good bit. I bought a hornady cartridge overall length gauge so I could determine the length at with the bullets engaged the rifling. I've found that I can load the classic hunter bullets at length for the mag and get good accuracy, but I need to load the VLD's at longer length to achieve the same results. In my experience, the bergers are more accurate than Noslers.