my ar-15 chambered in 5.56 is having a small ejection problem i have noticed a few rough places in the chamber i was wandering if using a flex hone is something i would be able to do myself i am a hobby gunsmith i do work for friends and family i just dont want to bite off more than i can chew i feel confident i could do this with no problem i would just like to have another opinion before i decide to try this any words of wisdom would be apreciated thank you