My range has lane barriers on both sides so I have never noticed my Elsie Pea flinging brass any farther than my feet.
So I guess my response is: I have no information to help you out. Well, that was helpful.
45acp, 40sw, 9mm, 38spl, 380acp, 22lr
12ga, 5.56, 30-30win
2 Chron. 7:14 Christians must seek His face