I filled the stock with BB's once, and that does indeed work, but since I have a Trifecta, the same stock is used for the .22 and the .243. Don't really need the extra weight for those. I just installed a slip-on Limbsaver, and that works OK. I don't plan on using the 20 gauge much since I just bought a 12 gauge over-under. I'll just shoot the 20 gauge when I have the longing for some massive recoil.