Scope calibration test target

[copperking81]

I don't know if such a target exists but I'm looking for something like a Horus target that is scaled for shorter range. I'd like to test the repeatability of my scopes on a stand in my workshop. I can use a Horus out at the range but thought it would be handy to have something scaled to allow me to do the same test in my workshop.

I suppose I could make one but wondering if there are any existing PDFs out there...

 

[Toolbreaker]

At very short distance? Sounds like graphing paper would work well for what you're wanting.

 

[copperking81]

Yeah, I guess that's all that is needed. So long as the scale is correct.

 

[glockaholic]

This is ones I made..... Carl

PS - print 50% scale for 50 yards.

 

[Ruddy]

Tag

 

[gunsandgunsmithing]

Why not use a bore sighter?

 

[Rick300]

PS - print 50% scale for 50 yards.

What size paper does that get printed on?

 

[glockaholic]

What size paper does that get printed on?

30"x42", what we call ARCH E1 for full size

 

[glockaholic]

Why not use a bore sighter?

after about 10 MOA, you would not be able to see the laser in the scope. I guess someone could be at the target to see what it's pointing at.

 

[gunsandgunsmithing]

after about 10 MOA, you would not be able to see the laser in the scope. I guess someone could be at the target to see what it's pointing at.

I'm referring to the spud or even magnetic grid collimator style of bore sighter. All of them I've ever seen have way more than 10 moa. One I have has 8moa per grid square and 6 or 8 grid squares in both directions, IIRC. Across a shop, I'd think it would work better than anything else I can think of...at that distance. YMMV and your collimator may not not be the same as the ones I've had. I haven't seen any better suggestions yet for doing it inside, unless the shop is very large.

 

[Rick300]

30"x42", what we call ARCH E1 for full size

Thank you!

 

[Bart B.]

Put a yardstick exactly 50 or 100 yards away, anchor your scope on It then count the clicks to move the reticle 10 inches. Do the math.

 

[gunsandgunsmithing]

Put a yardstick exactly 50 or 100 yards away, anchor your scope on It then count the clicks to move the reticle 10 inches. Do the math.

That might work if the shop is big enough, but the op is looking for a way to do this inside. My suggestion is a collimator/bore sighter.

There have been good answers, such as yours, for outdoors. I'm not sure any of them will work indoors except the bore sighter idea. It's cheap, he probably has one already, and I think it'll work well.

Maybe he'll chime back in after trying some of these suggestions. I may have to try the bore sighter trick, myself.

 

[Bart B.]

Use 3 mirrors in a room reflecting images back and forth making the yardstick appear 4 times as far. I've done that.

My method above works for both repeatability and calculating what each click is worth.

If the scope can be clamped solid when focussed on any fixed object, repeatable clicks can be checked. Use a monocular to look in the eyepiece to magnify the reticle and target.

 

[gunsandgunsmithing]

Use 3 mirrors in a room reflecting images back and forth making the yardstick appear 4 times as far. I've done that.

My method above works for both repeatability and calculating what each click is worth.

If the scope can be clamped solid when focussed on any fixed object, repeatable clicks can be checked. Use a monocular to look in the eyepiece to magnify the reticle and target.

Cool! I think a bore sighter would be easier. Lol!