The scope is a Leupold VX7 30mm so an average scope size and it does have low mounts but it doesn't appear that the brass hits the scope when ejected. When I worked up the load I test fed single rounds and thought things might improve with the magazine full such as in a hunting environment but it didn't. Took it to BC last week and had to clear the injection port 2 times. Fortunately they were one shot kills and I didn't have a Grizzley breathing down my neck! It's almost like the bolt doesn't hold the brass very firm.