How's your scope holding up with that HW90 while shooting 20 cal? I'll be getting mine soon. Just got word from Airguns of Arizona that my HW90 will be shipping soon. I asked about mounting the scope and they said it will be mounted and zeroed in at 20 yards. I said, that's perfect. Anyway, the 20 caliber is so underrated I can't believe it. To me, it's the perfect round as far as I'm concerned but right now, my main concern is the $500 scope that's being fitted to the gun and Is it going to hold up. I don't know one scope from another so I allowed them to make the choice. My only requirement is that I wanted 42 aperture. As for the choice of caliber for this gun, all I can say is how well my Crow Magnum performed with a .20 cal pellet. I've got the EXACT 13.73 gr from JSB waiting to be tested in this new gun. The wait is driving me nuts.....