Was out on Friday and shot a few rounds of ABT. I had a not bad day but had one really bad round of 15 and could not understand what I was doing wrong with lots of intermittent misses through the round. I was shooting well for most of the time though and had a 22 and a 21 which for me is not bad. At the end of the day we were talking before setting off home and one of the guys said to me you are mounting you gun a bit high sometime and a bit low at others causing the inevitable high/low misses. I know that in one of the early rounds I shot twenty targets straight and had good runs of hits during a couple of the others. My question is .. Is this likely to be a lack of concentration or tiredness when mounting the gun or could it be gunfit problem? I know it is difficult to diagnose a problem with out seeing the shooter in action but it seems strange to be able to put together a good run of hits and then for reasons unknown have a run of inconsistent gun mounts?