I have an Element Helix 6-24X50 FFP scope. I mounted it on my S510 rifle and find it is shooting 7 inches low at 20 yards. It is almost out of “up” by the time it is zeroed. I have no problem putting pellet on pellet at this range, so the rifle isn’t tossing them around. The rifle has had a Sightron and a Meopta scope on it, both I was able to adjust for 20 yard zero easily with a few clicks. I am using BKL rings on it, if the rings are swapped end for end it makes no difference, still shoots quite low. Could this be a scope issue? I did the mirror style zero check, and the scope appears to be centered at zero elevation and zero windage. Seems like I should be able to zero and click elevation out to 100 yds on this scope like I can on a similar 22 cal rifle with a Discovery 6-24 on it.