OK, so I buy a bubba 1905 Gew 98. You can see pics of it here: http://www.pixagogo.com/3476834177 Now then, I slugged the bore of the gun and this was what I got. .311/.323. What kinda bore is this? My K-98 slugged .317/.323. I've been all over the web trying to find out who did what to...