The Bullet:In - The Mann Accuracy Device

For most of the shots you take with a rifle, you, the ‘squishy human component,’ are responsible for much of the lost accuracy. The rifle and ammunition have their own inherent precision, and their own chance of sending a shot wide. Normally, though, your positioning, trigger pull, timing, and a whole host of other factors are responsible for sending a shot to the wrong place.

Now imagine that we’ve removed the human from the equation. The rifle’s going to be held by something else, so your shoulder and hands don’t need a stable platform. Remove the foreguard and most of the buttstock. The point of this rifle is repeatable precision testing. You don’t need to aim for this, as long as the rifle stays pointed at the same spot for each shot. Remove the sights too.

This is the idea behind a Mann Accuracy Device. It was named after ammunition tester Dr. F. W. Mann.

--
https://anchor.fm/hi-lux-optics/episodes/The-Mann-Accuracy-Device-e1je8mc
https://hi-luxoptics.com/blogs/history/the-briefly-lived-mann-accuracy-device