Within the last two days, I have had at least TWO 450 Bushy owners contact me about problems with their bolts not ejecting spent cases. This is just a short video of how I test my AR 15 bolts, regardless of caliber. It's just me and the camera so angles may not be perfect but you should be able to get the jest of how to at least function test the bolt out of the weapon.
This was shot using a new quieter digital camera, but it is still a cheapy. At least it doesn't sound like a herd of mice chewing on the focus button...LOL!
http://www.youtube.com/watch?v=yLY84nk0l3g