Thinking about buying a "real" air rifle, maybe a RWS 54?

[VONBOYD]

Go with the .25 Benjamin Marauder and you'll have the most accurate hardest hitting PCP for the money. I shot through 3/8 plywood at 75 yards. PCP is the only way to go and it's easy to fill just buy yourself a carbon fiber tank. 90 Cubic inches gives you 5-6 refills. I shoot 1/2 groups or less regularly at 50 yards with the JSB Diablo exact.

Oh yeah, Impact Action Sports will fill your CF tank to 4500 psi.