I have a Bushnell TRS-25 on a 14" .22LR, but the purpose is pest control, which is usually I fairly close. The 14" barrel is slightly quieter than my 10", and the red dot is quick on target, and while it's not as precise as the 4x scope it wore before this, it's not enough to make a difference at my usual 25-30 yard shots or closer in.
I didn't read all the responses, but what I read was excellent feedback. Hope I'm not repeating what someone else said, but pay close attention to the MOA of the dot itself. I have a Leupold freedom RDS on an AR15 with a 1 MOA dot and I'm crazy about it. I have put Sig sauer romeo5 red dots that I THINK are 2 or 3 MOA and they can are good for fairly precise shooting at maybe 75 yards or less. The larger the MOA the more area of what you are aiming at is covered. The Sig sauer romeo5 are small and compact, simple to use and the two I have came with a co witness higher mounting option geared for AR15 type rifles. The low mount however is perfect for mounting nice and low on a weaver type base. The Leupold sits up too high in my opinion but I love the clear but small dot and perhaps there are other lower mounting options I have not yet discovered. Best wishes and kindest regards.