I am looking for a good quality portable brass catcher. I went shooting yesterday and intentionally took only my revolvers with me because I had hurt my back policing my brass the last time I went shooting. I am looking for something large so I can shoot a variety of guns (from a variety of positions) near it. Any suggestions? Any experience? I ran a google search and there are a wide variety of brass catchers available, but I wanted to know what NWF members have used and approved. Thanks.