Tamid, I buy the Beretta two piece "socks" that are made to hold the barrels/forend in one and the buttstock/action in the other. They have a drawstring on the end. I slide them into the leg of mutton case inside the "socks" and it holds them snugly and prevents any "bouncing around" inside the case. I really enjoy a nice LOM case, and keep several guns in LOM cases all the time.

[Linked Image from jpgbox.com]

Stan