I'm sure many of you have seen the recent offerings from PB. One very nice looking (but very overpriced IMHO) 1941 Sako has a "2" stamped on the barrel shank behind the rear sight. I see that 7.62.x54R.net identifies this mark as "Indicates 2nd grade accuracy". From my research, it appears that this mark, when applied to M39s, is found primarily on rifles bearing a 1941 date. I see that most claim that the mark means substandard accuracy, while others dispute that claim and believe it means something else. Can anyone (maybe one of our Finn MN experts?) shed some light on what this mark means and how/why it was determined that a rifle should bear this mark?