Link to learn more about it: 6mmBR.com Reviews of Reloading tools, Bipods Harris Pod-loc, Cleaning Supplies, Redding Wilson Dies, K&M Tools, Neck turning Tools, Shooting Accessories and supplies. I think I paid $43 for this. Most regard a bore guide as "Must Have" if you care about your throat, bore and crown. The only reason it's for sale is because I'm clearing out my 300 WBY gear. $30 TYD.