Received this the other day, but the wrong TPI for my 300, and the company I bought it from will not accept returns. It's set up for a barrel with a 9/16 x 24 thread pitch for 7.62, 6.5, 6.8. You can see the list of accepted calibers in the picture, and I could get some better pics up tomorrow. I'm asking
, PayPal friends or family, or you pay the fees. Please email me or best response.