I have only had experience with one Howa and it was a 300 Win Mag that belonged to a friend in my volunteer fire dept. He could shoot it with factory ammo, fed, fired, extracted just fine. He got a set of RCBS dies and FL sized the cases, loaded them up and they would not go back in rifle. He bought another set of dies and same thing happened and he bought a third set of dies and same thing happened then he asked me. I told him to bring rifle down with all his ammo and we shot it three rounds, came in and sized them on my dies and the FL sized cases would not go in the rifle. My dies are like 40 years old and have worked with multiple rifles just fine so I knew my dies were OK.
I took a looksee with bore scope, nothing visible. I unscrewed the barrel and cut the threads off and rethreaded it and put in a new chamber with my reamer and every round he had previously loaded with the first three sets of dies and my dies chambered and closed fine. I Visually looking at fired cases from factory chamber and my chamber looked the same but that is what cured the problem with his.
Never even heard of such in any other rifle so I can only figure something did not work out right somewhere in the original production.