I shot it the same day I got it and let me tell you this gun is not for the faint of heart. I shot it in mid day so I was not able to see the flash. The recoil was um well down right painfull!! I was shooting the Hornady 350 gr XTP JHP. I traded in my BFR for it. So far I like it a lot!!
I bet it does recoil with that 4" barrel. I need to get one. They look like to much fun. there are a lot of videos on You Tube here is a video of the 4 inch model being fired.
That would hurt. I have a friend in Alaska that bought the 500 most scope manufactures won't warranty the scope unless it is used on the 10 inch barrel only. He called a lot them to try and find one that would hold up to it over time.