I've got three rifles now with the burris 3-9x40 rimfire scope couldn't be happier with them.
I have a crimson trace 4-12x40 on my tx1 now. Not sure I'm sold on it
Got the SWFA UL mounted and so far it compliments the T1X nicely. Only shot 2 squirrels with it so far. Usable from 2.5-10x although you lose a little clarity at about 9x or so. Still enough clarity to hit a squirrel head even at 10x. Super light, adjusted how it should during zeroing, overall I’m liking it a lot for small game.