I bought a US Optics anti-cant device which mounts to my scope. It is on a NF 5.5x22 mounted on my 300 RUM. I had it at the range the other day and used it fine. The next time I went to the range I unscrewed the bubble level cover and juice ran out. Somehow from my last shot to my next trip to the range the glass on the level broke. It had protective cover on it the entire time and in padded case. I have no idea what could have broken the glass. Should I send it back?