3-9x 40 is plenty of scope ...YOu can snag a 3-9x 40 Bushnell elite 4200 from www.theopticzone.com or from Ebay for a price in the low 2's..That is a very nice scope. WIll mount lower then that 50mm scope and give you a better cheek weld... You can get a Zeiss in the 375ish range delivered from a number of places 3-9x40 would be perfect as well.