Chamber Maid Bow Tie Cleaning Swabs (20 PACK) For Cleaning - Remington 700, Winchester Mod 70, Ruger M77-Mark II, CZ 500 types, Savage 110 Series, Sako, Tikka, and all Mauser type actions with apposing locking lug design. Attached to your standard bore brush, they quickly clean this often neglected area.