Dewey - Nylon Dozen Packs Bristled It is recommended that the

It is recommended that the firearm be re-treated with G96 Gun Treatment

and the TREMOR milling chevrons for fast known target size range estimation

Prevents metal wear :  bolt action locking lugs

and Stryker HD 5-50x56

Also holds the bolt in a decocked position which is secure but also takes the strain off the firing pin spring

Dewey - Nylon Dozen Packs Bristled It is recommended that theWe offer three basic types of brushes: Bronze, Nylon and Copper Eliminator. Beware of brushes with steel core wire going through the center of the brush, especially if the wire is snipped off at the top of the brush, leaving sharp edges. These can often harm a chamber or throat if not correctly centered. All of our brushes feature a no harm core. Our benchrest brushes are made with brass or aluminum core wire that is fashioned into a loop at the top.