good article on the subject
Lilja Precision Rifle Barrels - Articles: Long Range Shooting and Hunting: Page 1
The 1903 did have sight for Group fire
2000 was a common range for group firing
300 men 5 rnds each on a trench is a nasty rain
not sniping by any length, but would you wanna be under it when it lands??
it keeps heads down while folks assault wire etc.
Recently a US SF team came under fire from a unusually high angle
it wasnt super accurate but held the unit in place until air support arrived. as they had to cross too much open ground to counter.
it was one old talib with a very old Enfeild .303 with 2500 meter sights