Don its been over 10yrs since Ive used a chrono but I have seen pics of ones that have been hit...so I know what you saying...
Building this room took away my indoor 20yrd range so now I can only shoot mybe 12yrds but that should be just fine for indoor,just have to put the bag behind the block.....Maybe tomorrow I will set it up and take that virgin shot thru it.....with the bow of course.....