It all boils down to people thinking of the speed in getting off the second or third shots when their concentration should be on placing the first pefectly.
: The only time the second or third shot's speed of delivery is important, is for multiple targets.
: Make the first shot perfect and there is no need for a magazine machine - so- it's either going to be perfect or don't shoot - pretty simple. A good quality single shot will work for any game - John Taylor thought highly of his singles & if an elephant poacher can get by with a single, why can't you?