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As I have said before rifle scopes are foreign objects to me. These days I am moving further away from milsurp iron sighted rifles. I have acquired a couple of scopes that I am currently installing on rifles. If I zero the first one at 100 yards how many clicks do I need to put on to get to 200, 300, etc out to 500 yards. This scope is 1/8" clicks adjustment.

Depends on the trajectory of the bullet.

I think it would depend on the calibre and bullet weight etc as trajectory will vary greatly.

A ballistic calculator app such as Strelok may help as it has quite a few different scopes listed and you can input your ammunition data.

Alpha1 wrote:As I have said before rifle scopes are foreign objects to me. These days I am moving further away from milsurp iron sighted rifles. I have acquired a couple of scopes that I am currently installing on rifles. If I zero the first one at 100 yards how many clicks do I need to put on to get to 200, 300, etc out to 500 yards. This scope is 1/8" clicks adjustment.

This is dependant on the amount of drop that you get from the bullet/rifle combination at those distances.

So if you have a .308, zeroed at 100 yards. And over the next 100 yards it drops an inch, that would be 1/2 MOA - since you have 1/8 MOA clicks, that would be 4 clicks to be on at 200 yards...

A good ballistic calculator will let you know the theoretical drop for each distance, and most bullets will give you an average fps for that bullet...

A good chrono will give you all of the information you need to be absollutely accurate, but you will get close enough to be on target boards with most information you can get hold of from bullet manufacturers.

It all comes down to the bullet and rifle combination though.