help request- targets for sighting in rifles

[cpileri]

help request- targets for sighting in rifles

I am interested in making some simple targets of my own for sighting in rifles/scopes.
Does anyone know the ratio of size of the dot and distance between them to create targets for different range zeroes?

For example, this target will have 2 dots on it: one inch diameter each, and one directly above the other with one inch distance between the centers of each dot (thus, the edges are touching; half an inch from each dot). This will put my zero one inch high at 100 yards, or so the original creator of this target says, if this target is set up 25 yards away. OK????

What I would like to do is be able to create targets that I can set up at any range I want, specific to each target of course. So maybe I want one that is designed to give a dead-on zero at 100 yards, if the target itself id placed at 3 yards away; or one that gives a dead-on zero at 400 yards if the paper is set at 17.39487 yards away; or whatever.
Basically i want to know how to create all possible combinations.

Can this be done? Can any rifle expert help educate me on this project?

A million thanks,
C-

 

[Dot_mdb]

Sighting in target

I'm not an expert but I will throw out a suggestion based on what I think you want to accomplish.

Get a ballistics software program. There are free programs available on line. One of them is "Point Blank, Computer Reloading and Ballistics Software v1.8a".

You can do a Google search under "Point Blank reloading" and it should bring up sites were you can download the program.

The program has a Ballistics Calculator in it which will show you the elevation +/- of a bullet along its flight path to the target.

I am not sure what you are trying to accomplish by using the stick on dots. Why not just use a standard sighting in target which has a 1" grid to allow you to know the relationship of where your bullet impacted to the point of aim and then see how that corresponds to the data in your ballistics calculator table?


Bill

 

[hps1]

cpileri:
Check out this site:

http://www.norma.cc/htm_files/javapagee.htm

You can play around with optimum zero distance for your load, then, as Dot_mdb suggested, check it out on the range as your mileage may vary. The 1" grid is excellent tool for this job.

For an assortment of printable targets, take a look @:

http://www.uspalma.com/Targets/targets.htm

Regards,
hps

 

[cpileri]

nice!

That norma ballistics page is super! i believe i can use that to do what i want!

Always like the taargets: 600yds reduced to 100 is my favorite so far.

Neat stuff!
Thanks!

 

[Art Eatman]

Leaving out stuff like the magnums or .220 Swift, etc., most hunting cartridges are very similar in trajectory to around 300 yards: For scoped rifles, 2" high at 100 is dead on at 200 and 6" low at 300. A bit of variation with lighter or heavier bullets, of course, but for field work this works out just fine.

Art