I bought a mag extension for my 870 and now i need to remove those annoying dimples Remington puts in the mag tube I did a little research and it seems like there is 3 ways of going about this, first would be to drill out the dimples, then there is the socket method where you lightly hammer a socket down the tube to flatten out the dimples, and last would be to buy a dimple removing tool online... Anyone have any experience who can give me some advice on what would be the best method?