briansmithwins
Member
- Joined
- Aug 1, 2005
- Messages
- 4,631
Ran across an interesting paper on human factors for combat rifle design.
TLDR version: Most combat shooting is pointed rather than aimed and occurs close in. 5.56 has plenty of power at typical ranges. Open sights can be better than peep sights in combat.
Whole paper is here: https://docs.google.com/open?id=0B09fZpC9S7gDNGJmYTcyZGEtZjNjMy00ZGE0LWJjYTMtZWIxMWJlZWQ3NmFk
This doesn't sound a awful lot like a M16 to me.
BSW
TLDR version: Most combat shooting is pointed rather than aimed and occurs close in. 5.56 has plenty of power at typical ranges. Open sights can be better than peep sights in combat.
Whole paper is here: https://docs.google.com/open?id=0B09fZpC9S7gDNGJmYTcyZGEtZjNjMy00ZGE0LWJjYTMtZWIxMWJlZWQ3NmFk
A survey (1) of Army and Marine combatants from the European and Pacific theatres of World War II and from the Korean War indicates that 80 percent of the rifle fire was pointed rather than aimed when the targets were visible enemy soldiers.
US military experience in Viet Nam corroborates the findings from World War II and Korea; and a future war in Europe should be characterized by an extremely high density of fire from tanks, artillery, and both vehicle- and ground-mounted small arms. The result will be an environment where neither shooter nor target will be willing to risk exposure long enough to deliver aimed fire or be a target for very long.
The ranges of engagements and the frequency of engagements that occur at these ranges do not dictate the use of the heavier 7.62 cartridge for
the infantry rifle. These ranges are within the capability of a 5.56 cartridge, such as the SS 109, to be satisfactorily effective.
The conclusion that should be drawn from the existing data is that it is important that a combat rifle be configured to optimize its performance for quick, unaimed (pointed) semiautomatic fire. It should be designed around a cartridge that results in a low recoil impulse (less than 1.2 lb/sec).
A notched rear sight is slightly superior to a peep sight for pointed fire and under low light levels. A notch sight should be as accurate as a peep sight for aimed fire during more usual daylight conditions.
The sights should be capable of being zeroed in azimuth and elevation, but there is probably nothing to be gained by providing a rapid windage and range adjustment.
Controls such as the safety, fire-mode selector, magazine release, and charging handle should be designed so they are, to the highest degree possible, equalLy convenient for left- and right-handed shooters.
The chamber area of the receiver should be designed so that it is readily accessible for clearing jams and other stoppages.
The charging handle must be designed so that sufficient force can be applied to the bolt in both directions to quickly clear jams such as double feeds.
This doesn't sound a awful lot like a M16 to me.
BSW