Hi everyone, I recieced my 10 ga. turkey barrel for my ultra slug hunter. I took the barrel to gander Mtn. to get scope mounts, While I was there I asked the gun smith about the forceing cone job, he held the barrel up, looked down the bore and said it has already been lengthened or relieved or something to that matter. My question is are these barrels coming with the forcing cones already done? Can one tell that easy by looking down the barrel? Should I ask another gun smith? Thanks For Any Info.