hmmm I don't really think a B26 would be good that far in .22. And the B25 might be iffy too for that matter. Given your velocity constraints a TF89 or a B28 would have the power, I dunno about shooting that far, I've never bothered that far with a springer. At least not yet

. I don't know hardly anything about the B40, someone else will have to weigh in there.
I used to have a TF89, she's bcshooter's now, she chronied at 783.1-786.9 fps for him over a 10 shot group with CPHP's (14.3 gr) after he did a home tune on her. Assuming the exact same muzzle energy that'd give about 742 fps with a 16 gr pellet, not shabby, and I think most of the tuned TF89's are doing a bit more than that, some people are getting over 20 fpe with them.
http://www.gatewaytoairguns.com/airguns/forums/thread-view.asp?tid=19568&mid=157300#M157300 I have a B28 (got it from bcshooter incidentally) and she just chronied at 832 +/- 11 fps with 16 gr Predators. Yowza!
So the B28's got more power, though for general purposes I'd choose a TF89 over a B28, just generally a more pleasant gun to shoot, and not exactly lacking in power... I went with the B28 this time around because she was already broken in, the price was good, and she's going to be a hunter, not a pleasure shooter, period.
Also since you already have a 350 (which the B28 is a clone of) I guess that's another reason to get the '89, just for something different lol.
What're you going to use the gun for?