I had the same problem with a a 85 grey wolf in .30-06, Leupold low rings, Leupold vx3-3.5-10x40 mm. This was a couple years ago. My Spent brass would hit bottom of scope and fall back in. Yes the bottom of my scope had brass marks on it! My gun shop sent that rifle back in, sako sent another brand new rifle and it did the same thing this time in sako low rings. The swap out took about a month. Sakos fix for me was to put my 40 mm scope in the high or extra high rings. My local gun shop got sako to refund me my money. Seems its pretty jormal for the long action sakos, from what i found on the net. I was pizzed they wanted me to buy another set of rings and mount that dam scope like that, bunch of azz clowns.