sight height

View previous topic View next topic Go down

sight height

Post by nih on Mon Feb 25, 2013 5:44 am

so I got my delta point back from Leupold and went to range saturday to zero. first time i've actually had Kriss outside and a working optic on it. No bore sight so decided to start close, 20', 10 rds or so i was dead center, 1" groups, easy/peasy. I had a target stand that i had the 10" reactive targets stuck to and i also brought 2 10" self healing gongs.

so next i walk a gong out to 30'. come back, take a shot center mass, totally miss, another shot, total miss, ok, i'll hold at bottom, hit at the top of it, hmm, do it again, and again. so I'm thinking 230 gr, 850 fps, 20' zero, 30' = 10" high? i moved my paper target out to 30', rezero at 30', back to dead on, left paper out there and put gongs at 20', hitting gongs center (or closer to center) and 30" paper in center.

I used my superior skills in paint to illustrate what I'm pretty sure happens. the culprit, the 3 3/4 inches from the barrel to my line of sight, my site height. I had my dad and uncle on range with me saturday so i wasn't going to sit and make up a range card but I'm somewhat stunned that the round climbed 10" in 10' on me. If somebody would have asked me 10" in 10' I would have said no way, thats to much, but, it is.

Another factor, not really sure it is a factor, is that the center of the paper was ~2' off the ground on stand, the center of gong was ~1' off the ground, i'm not sure how to calculate that into the equation or if it even applies, although my skills in paint are superior I don't think i can draw it out. I want to say no because the sight height hasn't changed if you are pointing down or holding the gun level, the trajectory doesn't change, the round still crosses line of site at the zero, it just goes into the ground sooner when pointed lower. If anything it changes the 30' measurement of the gong in relation to the paper. thoughts?

so question now is: do i remove detach mount and put dp on kriss rail to reduce that height? do i just move my zero out farther, 50'. anybody else seeing this problem with sight heigth?

I'm thinking about actually making a range card and recording the +/- at distances, something like below, anybody else make one of these up already they can share? I really thought, oh, its 45, i'll zero then i can just throw lead out anywhere from 20-50' and hit anything, well..10" high over 10', christ.

what's sight heigth on eotech? Aimpoint T1?




nih

Posts : 177
Join date : 2012-04-24

Back to top Go down

Re: sight height

Post by hkbeltfed on Mon Feb 25, 2013 8:47 am

Mount your deltapoint to the rail and zero farther.

hkbeltfed

Posts : 25
Join date : 2012-11-04

Back to top Go down

Re: sight height

Post by Solscud007 on Mon Feb 25, 2013 1:33 pm

Yeah you are too close. Zero at 25 yards.

_________________
Most of the information I find and collect about the Kriss is documented on my facebook page.
http://www.facebook.com/pages/Kriss-Super-V/157275704339968
avatar
Solscud007
MOD

Posts : 1580
Join date : 2012-01-05
Age : 37
Location : Pittsburgh, PA

http://www.facebook.com/pages/Kriss-Super-V/157275704339968?sk=w

Back to top Go down

Re: sight height

Post by Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum