Big bore is a fast growing niche of airgunning just now. If I were to make a recommendation for you today, I'd have a better recommendation tomorrow. Seems custom big bore ammo is developing just as rapidly. You've got your work cut out for you.

I'm shooting a hotrod Airforce Condor .25 launching 37 grain Rat Sniper HPs at 1050 FPS (90FPE) and eliminating pest deer and coyotes at 50 and 75 yrds. I'm satisfied until something comes along that I just can't live without. I like the flat-shooting .25 over the loopy .30. Ammo is cheaper too, and also requires less air. My gun was inexpensive too. To replace it with something better would cost too much. If economy counts, take a look at the Condor.

BeemanR7