I recently purchased what was advertised as a LNIB 686+ TALO with a 3" barrel. I thought I did a pretty good job of looking it over belore purchasing, but in my excitement, I apparently missed looking at the crown, which has a much thinner chamfer (if that is what you call it), at the bottom of the muzzle than it does at the top.

I haven't shot it much yet (just once at short range), so I don't know if it actually effects the accuracy of the gun or not. Assuming it does, and I want to get it fixed, would S&W do it for free under warranty and in a reasonable time frame, or should I buy the tool from Brownell's (about $100) and attempt to fix it myself. Frankly, doing it myself does not appear too difficult; I am generally pretty good at this type of thing. I just don't want to send it to S&W and have it sit for months...but on the other hand if S&W would fix it in a reasonable amount of time and at no or little cost, I would prefer to defer to the experts!

What do you think I should do?