Works great - J. Dewey Adjustable Bore Rod Guide

Never used a bore guide before. I got a new rifle and decided to break in the barrel correctly. Read many reviews and decided on the Dewey one. Liked that it was metal rather then plastic and that it was caliber specific. It's easy to use and understand even for someone who has never used one before. Came with extra "O" rings and a simple tool to help install them. ( When it is slipped into the rifle chamber the O rings make the seal so that solvents don't run down to the trigger area). So far I can't find even one flaw with this tool. I am very happy with it and would recommend it to everyone.