Found this video on mag30th's channel about shooting his 1943 Enfield Mk. 4 at a thousand yards and I'm pretty impressed.  Hitting anything that far without being a trained sniper may be routine for some guys, but not me, and with a 60 year old rifle at that.  The comments even include a Brit sniper who says even they aren't trained to hit anything that far away, rather that range is just to harass the bad guys.  Anyhow, mag30th's channel is full of interesting videos, so give him a look.