which umarex python are you asking about? to my knowledge there are 2 umarex python variants, one is an all metal BB shooter with shells, the other is a polymer variant that shoots pellets and bb's? and without wishing to try to disappoint you apparently the latter is quite poor? the price you paid shipped is around what this particular version sells for here in the UK
version 1 - BB shooter with shells
version 2 - BB and pellet shooter