While I would love a silencer for a multitude of reasons—my hearing is at the top of the lis–-to address the original post, an unsuppressed 22 is not likely to spook deer. The vast body of research shows deer are not effected by the sound of a gunshot. The bigger concern should be the Little Debbie wrappers and sounds from movement and actions opening and closing. Who knows, maybe the deer equate the sound to thunder? Generally the movement of the hunter OR the movement of the deer by being shot OR having a round hit the ground near them is what causes an “exit stage left” event.
While waiting for the suppressor paperwork to clear, consider giving a unsuppressed single shot a try and let us know if that works. Then, once you have your suppressor set up, post a comparison of both. That way the forum will benefit from your research, and you will have a suppressed 22 :-).