OK...been to the range and narrowed my gun choices down from 150 different models to about 30 How do I determine what is expensive ammo and what isn't? Please no ...by how much it costs comments. the reason I ask is 1 box of 50 10mm rounds cost $28.99 and a box of 38 special cost $19.99. The range will only let you use their ammo in their guns. Completely understandable but at least give me the options of good or really good. What is a reasonable price for a box of 50 in 38 special 9mm 40 cal s&w 10mm thanks, Grog. 2 hours at the range, rented 3 guns, 2 sets of targets, 3 boxes of ammo, $105 dollars total (my share...we actually had 2 lanes and 6 guns/6 boxes ammo) Priceless because I found my wife and I both do not like the S&W 38 and the LCR. Both of which I almost bought before hand.