Out of those two the Simmons is a much much better scope. No way I'd even consider the BSA, as they are pretty much crap. That being said you can get much better scopes for not much more money. The Nikon Prostaff's can be had for $100 right now and I'd prefer one of those to the Simmons, the Burris FFII is a ton better scope and you can get them on sale at SWFA for $119 right now for the 3-9x40. Another option to consider if you want a Simmons is one of the Whitetail Classics at Natchez. They have pretty good prices on them.