yesterday took the ultra out to zero . when i put few shots down range at 30yrds was hitting low . so i thought that was becase i had to change from med mounts to high to clear the shroud . no windage clicks needed.filled to 220 bar and ran to about 130 and got about 70 shots just plinking around . so found a shelterd bit in a field and put target out at 35 yrds and put 6 shots at it.