I am looking for Blaser 338 Lapua barrel owners. With Blaser hammer forming their barrels, I am interested in inconsistencies in throat area as it transition into the barrel lands. If you are a Blaser owner or know of an owner with a 338 Lapua barrel, have you began noticing inconsistencies in your groups? Or have you had a barrel inspected with a borescope and come across erratic wear in the chamber. This wear is not supported by heat checking or cracking indicating excessive case pressure over a time period.