Sighting in for 1000 yards

[Tempest]

I like hundred yard zero no matter what distance. I can look after a match and compare how many MOA elevation needed for 1,000 at various temps. Usually pretty darn close to JBM numbers and I keep notes of the actual dope.

I used JBM last summer when I shot my .338 at 2,000 yards. With good data inputed, it was within .5 MOA elevation at 2,000 on my 1st shot using JBM numbers . Windage however, was another story.

 

[Bart B.]

I have chronographed 4 different bullet weights in 3 different apertute sighted rifles to get average velocity for each 308 Win load. Then used Sierra software to calculate their drop at 100 yards

Then got zeros at 100 yards for each shooting from prone. I'd previously calculated the angular change for one click knowing sight radius and lead screw pitch. Adjusted sight down to move impact down an amount equal to sight height above muzzle axis plus bullet drop. Sights were then at what I term a "shooting boresight." It's always different than the normal static one.

Calculated ballistics for 600, 800 and 1000 yard zeros using atmospheric conditions for the range then recorded sight elevation settings. Range zeros for each bullet from respective rifles was well within 1 MOA of calculated values.

 

[SG4247]

So a few weeks ago, I took my AR out for some 1000 yard shooting.

New scope - no zero.

Made a dope chart attached, and then shot at the 200 yard plate until I made a hit. I had to spot my missed shots by the dust signature. No problem - zoom the scope out to see the impact.

Then used the attached dope chart from there. What a blast!

The 1000 yard plate is just below the wind generator centered on the horizon, in the clearing.

Only 32 MOA correction needed with the little 22" AR barrel, and a 200 yard zero.

 

[ttfreestyle]

I like hundred yard zero no matter what distance. I can look after a match and compare how many MOA elevation needed for 1,000 at various temps. Usually pretty darn close to JBM numbers and I keep notes of the actual dope.

I used JBM last summer when I shot my .338 at 2,000 yards. With good data inputed, it was within .5 MOA elevation at 2,000 on my 1st shot using JBM numbers . Windage however, was another story.

All my guns are also on a 100 zero, with today’s apps it’s pretty easy to dial elevation to distance if you feed the app good data. Yup the wind is another story for me as well.