Home Forums Hunting & Shooting Air Guns .177 or .22 purchase tomorrow?

I need help fast. I am going to get a RWS 34 tomorrow. It will either be in .177 or .22 caliber. Which should I get? I kill a bunch of squirrels each week with my cuurent crossman (old 66 model .177). I also like to sit down and target practice. No shots will exceed 35 yards. It seems like .22 would be my choice, but do I need a 200 fps when reaching out at longer shots (35 yards)? How much will a .22 drop at 30 yards? How loud are the differnces between the .22 and .177? The .177 will break the speed of sound, so I will expect a loud crack, right?

The pellet prices are not significantly different.
Thanks for the help!