That can be attributed solely to scarce ammunition. The rifles themselves are extraordinary. For all of the stupid things I've done in my life, putting away a couple cases of GP11 wasn't one of them.It seems the K31 hype is kind of waning, I would do it if it were me.
As I mentioned earlier, the 03 bores are likely to be in poor condition, owing either to heavy wear or neglect, i.e. pitted by corrosive ammo.1903 is worth about twice more then the k31