Maximum Effective Range

[Sinclair]

Do you mean Max effective range or relative stopping power calculation?
M1 carbine max effective range 300 yards
M1 Garand max effective range 400 yards
M14 max effective range 500 yards
M16 max effective range 600 yards
At 600 yards the M1 has the highest relative stopping power.

This was about 55 years ago, with my MI Garand, I was told not to shoot at anything over 600 yards. The bullets went trans sonic just beyond that range causing them to yaw and hit probability was a little better than zero. I don't think that relative stopping power was a factor only hit probability.

P.S. I do not remember if it was a "C" or a "D" model, nor do I remember the ammunition designation, too many birthdays. I do remember my Father telling about the Officers would have them crank the rear sight up to max and fire enmass at some distant land mark to make the Germans take cover.