Just bend it down, they need tweaked from time to time. The main problem is you have to take your scope mount off on Excals to get at the two screws that hold the retention spring [aka "bolt holder"] off to bend it. 1/4" should work better for ya. Check your zero when you're done, might need a click or two.

I was at a show a while back and another brand had the same problem. I took an arrow and put it cross ways, pulled it toward the trigger, and it riding on the under side of scope mount tweaked the spring down enough to work. Haven't tried that w/ Excal yet but am going to next time I have to adjust mine.