Calculating range adjustment for ranges you have not shot?

[Mikecr]

I would not try to fix errors with known lies.
If you have good velocity measurements and there is an error in POI, the error is not with velocity.
If your shooting system inputs(scope height, scope click value in IPHY) are correct as measured, no need to lie about any of them. Same with local air density conditions, as measured.

Manufacture declared BCs are a starting point, based not only on their atmospheric standard, but on their velocities (sometimes averaged or normalized, like Berger does). Your local BC can be totally different, so this is what I would adjust.

 

[26Reload]

Unless you're shooting crows, an inch or 2 is immaterial

Who needs to shoot a crow when you can reach out and catch it.....so far i have caught this one three times....last time I leg tagged it to know if it comes back around....and wow...do the parents get ****ed and noisy when I had their kid in hand....

 

[snowghost51]

Want a simple answer? Choose Hornady ammo, go to their app. Zero at your choice, 100 or 200, print out the DOPE from Zero to 1000 at 10, 20, or 50 yards. Write it down, tape it to your stock, or keep your phone, and put in your windage, EASY

 

[snowghost51]

Want a simple answer? Choose Hornady ammo, go to their app. Zero at your choice, 100 or 200, print out the DOPE from Zero to 1000 at 10, 20, or 50 yards. Write it down, tape it to your stock, or keep your phone, and put in your windage, EASY

Also, as mentioned before chrono, temp, & altitude help.

 

[Homersipes]

So the club I'm joining has a 600 range, they get a 200 yard zero on the target on the right then the target with all the spots is simulated 600. They have done a rough calculation to get guys on the paper. Shoot at the bottom center target and adjust moa to hit I want to say was between the 2nd and 3rd down. First time I'd ever seen that before.

 

[snowghost51]

So the club I'm joining has a 600 range, they get a 200 yard zero on the target on the right then the target with all the spots is simulated 600. They have done a rough calculation to get guys on the paper. Shoot at the bottom center target and adjust moa to hit I want to say was between the 2nd and 3rd down. First time I'd ever seen that before.

Go to a real Range with 600 yards. I have one. Come to Ragnarök, near Carney, MI

 

[Homersipes]

Go to a real Range with 600 yards. I have one. Come to Ragnarök, near Carney, MI

Yes they have 600 yards, that's used to give guys a way to at least shoot paper at 600 then get tuned in.

 

[snowghost51]

Yes they have 600 yards, that's used to give guys a way to at least shoot paper at 600 then get tuned in.

Listen, if you are zeroing at 200, you have trajectory calcs, you are good if you see your impacts.good to go!

 

[snowghost51]

Listen, if you are zeroing at 200, you have trajectory calcs, you are good if you see your impacts.good to go!

I have metal targets, then you know when you hear it!

 

[Homersipes]

I have metal targets, then you know when you hear it!

Steel targets are a blast, next to watermelons at long range

 

[snowghost51]

Yep!

 

[tribb]

This is what I was looking for. Thank you. I do have a question about scope height. Do you measure from bore centerline to scope bell center?

How in the world do you measure from bore center to scope center?

 

[Capt RB]

How in the world do you measure from bore center to scope center?

Bottom of scope tube to top of your bolt is a simple way. Pull the bolt and measure and divide by 2 the same with the scope tube. Some use the ring half and the gas hole in the action.

 

[JAYgs8163]

How in the world do you measure from bore center to scope center?

Here is one way. It's quite simple though with a good steel edge ruler. Sometimes you have to remove the barreled action from the stock. Measure from the middle of the barrel to the middle of the scope bell.

Height Over Bore or Sight Height

Height over bore or sight height, is usually a measurement asked for by ballistic calculators to help calculate your "dope" for your specific rifle/set up. There are a few procedures that are commonly used to find sight height. A very basic way is to measure from the center of the barrel to...

www.scopedope.com