Tracking a scope

[RickRusty]

I'm about to see how my scope tracks. 2 questions

I've got it sighted and shimmed for dead on at 250 yrds. and a 6X24 Viper

So should I take shims out and start lower?

What yardage is good?

 

[tenring]

I track a scope at 100 yds. Use a target with 1" sighting blocks. If the scope adjustments are 1/4" at 100 yds., four clicks will move it one inch. Put the rifle in a very solid rest and on a bench. Sight on the upper left of one block and have a buddy move the scope four clicks right, then four down, four left and four up. Crosswire should return to exactly where you started. You can also do this with live ammo, but it must be very accurate. Each bullet hole should touch one corner of the target.

 

[ZenArchery]

Unless you are currently having issues I would leave it alone.
250 yard zero based on MPBR? If so, for hunting purposes leave it alone.
If this is a target rifle then zero at 100. Due track test.
Keep it simple.

 

[RickRusty]

I hope I'm using the right terminology. I was told my scope would not track well. And by that, I believe is meant.

If I range a target at 500 yrds, or 650 yrds, or 1000 yrds. I should be able to turn my turret the appropriate clicks. And hold dead on. My gun is a 7mm RMag. so it has LR capability.

 

[dstoenner]

I hope I'm using the right terminology. I was told my scope would not track well. And by that, I believe is meant.

If I range a target at 500 yrds, or 650 yrds, or 1000 yrds. I should be able to turn my turret the appropriate clicks. And hold dead on. My gun is a 7mm RMag. so it has LR capability.

Yes that is true. If it is not tracking correctly you will be off. I would recommend a ladder test. Take a piece of cardboard or brown wrapping paper. Mark a line down the center. Put your spotting bull at the bottom of the paper on the line. Then mark hash marks up the paper at 40 clicks. If your turrets are marked 1/4 MOA then put a mark at 10 inches and one at 10.5, then 20 and 21 and so on. What you really need to know besides tracking is which system your turrets are. inches or MOA. if in inches 40 clicks and shoot will get you close to the 10 inch hash, MOA will get you close to the 10.5 The next 40 will really separate out which system and the 3rd set will move even further apart. Also take out with you a 24 inch level and hang this target plumb. Then as your groups walk up the chart you will see also if your reticle is plumb. 1 MOA at 1000 yards is 10.5 inches.

When I am doing this I put a 3 shot group at each set, 3 to start, 40 clicks- 3 more, and so on. Then at the end I click down all the way back to my zero and put 3 more.

This is how I test my scope installation on my F-Class guns. Since I am going after targets that don't move, my data is just for the initial sighter.

HTH

David