It probably depended on what your role was going to be. I'm sure in basic training you were not shooting past the +-500yrd mark. But if you were going to be a sniper they trained you to reach further distances.
Sir, in WW1 and before there was NO sniper training of any kind in anybody's army, let alone those of the British Empire/Commonwealth. Please have a read of a couple of books about how the sniping schools eventually came about -
'Sniping in France' by Major H Hesketh-Pritchard DSO MC for WW1.
After WW1 it was all forgotten...and had all to be re-learned, using the skills of the Lovat Scouts...........................'With British snipers to the Reich' by Captain C Shore in WW2.
See also
'Sniper' by Peter Brookesmith.
'The sniper at war' by Mike Haskew.
'Out of nowhere' by Martin Pegler.
'The pictorial history of USSniping' by Peter Sennich
...and lastly, IF you can find one, the Department of the Army Training Circular TC 23-14 - Sniper Training and Employment pf October 1969 - a grea read and a positive eye-opener.
There are literally dozens of books by our friends below the 48th on how THEY had to relearn all the skills put aside after WW1, and again after WW2, so that they could successfuly employ the skills of folks like Charles Mawwhinney, Carlos Hathcock and other Viet-Nam era snipers.
The road back to the likes of the Canadian DF Master Corporal Rob Furlong was long and hard.
tac