Mine looks perfect to my eyes, but I didn't measure it. It looked good enough to Wayne York to ream to a 40º Improved chamber, he would have told me if the barrel wasn't worth the effort if there was a problem.
It really chaps my hide when one or two defects in a certain caliber sours the entire lot of em, the .280 is one of the best shooting and most popular of all the Handi calibers, I wouldn't let a couple lemons ruin its reputation.
Same for the .25-06, another real popular Handi, mine shoots excellent, but Fred had a real problem with his, Lik2hunt is the only other one I recollect that was a problem, and H&R bought his back from him along with the barrels he had fitted to it!! It don't get no better than that for customer support if you do have a problem!
Tim