Rifle Scopes Scope tracking at 100yds

jonaddis84

Gunny Sergeant
Commercial Supporter
Full Member
Minuteman
Jan 27, 2009
2,348
20
Toledo, OH
www.area419.com
Just curious.

At a static 100yd distance.

If you adjust your scope, for example, 14 mils up and hold over 8 mils. Should your impact be 6 mils high of your zero EXACTLY?

Just wondering if there is any optical bending or anything going on when you adjust such a large amount at such a short distance.

I was testing out the tracking of my new Razor today and this is what I came up with.

IMAG0857.jpg


But using a Leupold zero point (I realize they arent the most precise optical instrument), I know my reticle is dead nuts on based on the target I made. So I measured out 10 mils with the reticle, then adjusted 10 mils with the knob, and it ended up 0.3 off, which is less than what it ended up in real life. I also notice the slight windage movement with the zero point, starting off on the right edge of a vertical line and dialing 20 mils, it ends up with daylight on the left side of the line.
 
Re: Scope tracking at 100yds

I check tracking on all my scopes, and I find that shooting the rifle adds too many variables. I clamp the rifle down hard and twiddle with the knobs while watching the reticle move on a test target like yours. I find it to be much easier to do that way.

To answer your actual question, the movements should be precise at any range. You've either got a bad scope or, dare I say it, it's the shooter/rifle combination.
 
Re: Scope tracking at 100yds

I would normally say it could well be me, but doing the math on the percentage error for each of the three tests I did they are pretty darn close. Plus double checking with the leupold does tell me there is an error.

I just didnt know if there were any kind of optical tricks going on when adjusting that much at such a short distance.