I was taking a break from chukar hunting the other day and had a 400 yard range all to myself, swinging metal targets included. Started at 100 yards just to check the zero. No problem. Dialed into 200, piece of cake. Went to 300 and needed to hold on a mark above the target and on the burm. Wind was an issue but it was consistent but most of the time I could keep them on a 10" plate. Went to 400 and I would have been lucky to have kept them on a barn door. Bullets were wandering everywhere. This was with some bulk federal supersonic stuff out of a 20" Kidd (lothar walther) barrel on a 10/22. With wolf match the groups are good close, but it seems like the faster loads help out far. Just thought I would share that. Anyone else tried and had any success out that far?