Though D.J. does not use that term, that is the term I learned it as when I was taught this technique back in the day.
Simply put, “Metal on Meat” is SUPER IMPOSING the frame of your weapon on your target without taking the time to input and calculate sight alignment.
This is when you are surprised at relatively CQ ranges (under 10 yards) and MUST take the shot QUICKLY.
You can also apply this technique with an AR and an AK by simply super-imposing the front sight post on your target. The “wings” of the AK sight and some AR sights make it very easy to frame your target without having to take the time to align your center sight post.
Once again this is not a technique for accuracy but for getting rounds on target quickly before your target can do the same to you.
With RMR optics becoming more and more popular on both defensive handguns and carbines/rifles, this is a NO BRAINER drill IMO.
After all electronics WILL FAIL and batteries WILL GO DEAD when you least expect it and NEED them the most!
That POS Murphy is always on the Clock, so TRAIN for it!