I do not think that this product is going to make anyone a better shot.
A couple of rounds off the bench and... "hey, my gun is super accurate now."
The same people who think that was enough practice for the year before heading out to attempt freehand standing shots at running deer @ 300
yards are still going to do the same thing. In contrast, those who get into reloading usually do so with accuracy at least a major influence, and will practice their shooting skills so that they may realize an accurate load when they shoot one, therebye improving there shooting skills and understanding of balistics in the process.
I have offered to reload for people, loaded some test loads of different charges, and sent them off to the range. Usually they come back with 3" groups or flyers all over the paper, then I go shoot the same loads, again, and low and behold I find a load that will produce 1/2" or better. Funny enough, most never ask why the difference, or how they can improve.
I am not a great shot, as my # of misses on coyotes this year will attest, but when it comes to deer, elk and moose, I have rarely ever taken a second shot, and frankly have never NEEDED to, just panicking as they got up.