Well done mate , glad you're back . Will have some hunting posts now.
As to the shot reaction I have seen it a couple of times .Once shot a roe in Scotland with .22/250 , no reaction to the shot and it ran up hill and stopped when I shot it a second time , both shots perfect.
Another time I shot a big buck with the .243 and it just stood there with blood squirting out of the exit , so shot it a second time to end it quick , again both shots good.
If you shoot enough strange things happen , sometimes they dont know they are dead.