High at 100 yds?

[Allen in MT]

Shooting a Rem build sporting a HS precision stock, 26" fluted 8 twist Lilja barrel, Trigger Tech trigger and Wyatt bottom metal and mags in a 6.5 Creedmoor. Loading and shooting Hornady brass, 140 Berger Hybrid Target backed with Federal large match primers and 40.5 grains of H4350. This is topped with Talley medium 20 MOA rings set with a Vortex Vipor 6-24x50 FFP scope. Going to shoot this out to 1000 + yd steel but can only get to a 100 yd range at this point. I usually sight 1" high at 100 yd Would it help to sight a little higher at 100 yd

 

[243winxb]

For 1000 yards, at least 3 feet high at 100 yards?

 

[Wreck-n-Crew]

Maybe I'm misunderstanding the question but why set at 1 or 2 MOA @100 in preparation for 1,000yd shots? What advantage does it have?

Are you using a ballistics calculator? I mean your going to be turning that turret up several MOA and if you have your load tested for velocity the numbers should get you dialed in pretty close so that's why I am lost as to the reason for anything other than MOA @100 to start so you can plug in your numbers and adjust accordingly. Otherwise If your set at 1 or 2 then you will just have to keep that in mind and deduct that from the numbers from the calculator.

 

[Skeet 25]

Love your state Mt. Lot of open country, why can't you find a place to practice at 6or700 yards? Can't you shoot on public land?

 

[Dog Soldier]

Maybe I'm misunderstanding the question but why set at 1 or 2 MOA @100 in preparation for 1,000yd shots? What advantage does it have?

Are you using a ballistics calculator? I mean your going to be turning that turret up several MOA and if you have your load tested for velocity the numbers should get you dialed in pretty close so that's why I am lost as to the reason for anything other than MOA @100 to start so you can plug in your numbers and adjust accordingly. Otherwise If your set at 1 or 2 then you will just have to keep that in mind and deduct that from the numbers from the calculator.

Very good informative post. Our range is currently 1 Mile. We have targets from 100 meters to 2,400 meters etc.

 

[Bart B.]

Use ballistic software to see how high bullets must strike at 100 to zero at long ranges. Done this and have been only 1/2 MOA off through 1000 yards.

Helps to chronograph the load else your guess may be 100 fps off.

 

[macgrumpy]

33.8" high at 100 yards.

 

[Allen in MT]

Maybe I'm misunderstanding the question but why set at 1 or 2 MOA @100 in preparation for 1,000yd shots? What advantage does it have?

Are you using a ballistics calculator? I mean your going to be turning that turret up several MOA and if you have your load tested for velocity the numbers should get you dialed in pretty close so that's why I am lost as to the reason for anything other than MOA @100 to start so you can plug in your numbers and adjust accordingly. Otherwise If your set at 1 or 2 then you will just have to keep that in mind and deduct that from the numbers from the calculator.

Got my loads chronied and using a BC to adjust the number of clicks needed as i work out to 10000. Once I get it sighted in at 100 where I want it I will reset the evelvation cap to zero and use zero stop.

 

[Wreck-n-Crew]

Got my loads chronied and using a BC to adjust the number of clicks needed as i work out to 10000. Once I get it sighted in at 100 where I want it I will reset the evelvation cap to zero and use zero stop.

Good deal. So Zero at 100 and following BC...that's the way to go once you have those Velocities checked.

Let us know how it goes!

 

[Llama Bob]

Shooting a Rem build sporting a HS precision stock, 26" fluted 8 twist Lilja barrel, Trigger Tech trigger and Wyatt bottom metal and mags in a 6.5 Creedmoor. Loading and shooting Hornady brass, 140 Berger Hybrid Target backed with Federal large match primers and 40.5 grains of H4350. This is topped with Talley medium 20 MOA rings set with a Vortex Vipor 6-24x50 FFP scope. Going to shoot this out to 1000 + yd steel but can only get to a 100 yd range at this point. I usually sight 1" high at 100 yd Would it help to sight a little higher at 100 yd

With an adjustable scope zeroing high at 100 does you no good. Either you've got the adjustment or you don't. Doesn't matter what you do at 100. In your case, you've got enough adjustment no question ( I shoot a very similar setup with the same scope). So zero dead on at 100, and then work on developing dope at longer ranges.

 

[Legionnaire]

Wreck-n-Crew and Llama Bob have it right. With that set up, zero at 100 and crank in your dope for longer distances. The only rifles I sight in high at 100 are hunting rifles with point-blank ranges out to 250. Anything else gets zeroed at 100.

 

[BrocLuno]

What he just said. Run of the mill hunting rifles, +1" at 100. All other sight to POI ...

 

[jmr40]

Zero at 100. Adjust your optics for the range you'll be shooting.

The concept of zeroing higher than the aiming point is an antiquated method useful years ago with old school optics and bullets with poor BC's. No reason to do that today with hunting or target rifles.

 

[farmerboy78]

There are 1 of 2 zeroes that I would do, either 100 or 200 yds. Pick which works for you, zero dead on and adjust your turret to zero like mentioned.

 

[Bart B.]

The concept of zeroing higher than the aiming point is an antiquated method useful years ago with old school optics and bullets with poor BC's

So my post about doing that very thing with modern good BC bullets and ballistic software was a farce?

What's wrong with old school optics? Scope design hasn't changes since the beginning. Smaller tolerances these days that makes them 1/4 MOA more precise and that does nothing to change zeroing high at short range. On second thought, it will make 1/4 MOA difference at both ranges.

 

[macgrumpy]

Zero at 100. Adjust your optics for the range you'll be shooting.

The concept of zeroing higher than the aiming point is an antiquated method useful years ago with old school optics and bullets with poor BC's. No reason to do that today with hunting or target rifles.

Did somebody change the laws of physics?

 

[Bart B.]

No, somebody changed the laws of mathematics. I thought math was the only exact science using simple adding and subtracting with multiplying and dividing virtual reciprocals thereof. And all others are a well educated guess, but sometimes off some amount like medical and weather sciences are.

There's a recent movie about three ladies using it and calculating tools to help shoot things into space very precisely through earth's atmosphere. The ballistic coefficient of those things in air was calculated just like bullets are. Another space ship ballistics engineer worked with Sierra Bullets using the same math.

Maybe 2 plus 2 now equals whatever the calculator wants it to be. Like an accountant cooking the company books so they look like the owner wants them to.

 

[Legionnaire]

Not to be picky, but isn't "zeroing" setting your line of sight to cross the flight path of the bullet at some predetermined range? Technically, there are two "zeros"; the first when the bullet ascends through the line of sight, the second when it descends through it. We mostly talk about the second, but it is not uncommon to "zero at 25" to get close to "zero at 100." But setting your sights such that a bullet is "one inch high at 100" is, by definition, not "zeroing."

To extrapolate from the OP's original question, if he wants to know (by calculation or empirical test) how high the flight of the bullet needs to be above point of aim at 100 yards to be close at 1,000, he'll need to know his exterior ballistics well. It's not an unreasonable question. It just isn't "zeroing." And as many have pointed out, if one knows the external ballistics of a particular load in a specific rifle under known conditions, it's more practical to zero at 100 and then dial in the proper scope adjustments for a given range as needed.

 

[Bart B.]

if one knows the external ballistics of a particular load in a specific rifle under known conditions, it's more practical to zero at 100 and then dial in the proper scope adjustments for a given range as needed.

Except 36 MOA on scope adjustment doesn't always move impact 36 MOA down range.

 

[Jim Watson]

To the OP: There is no point in setting your sights an inch high - or any arbitrary amount - at 100 yards in preparation for shooting targets at 1000.

A friend uses a "thermometer target" when limited to a 100 yard range. That is, he has a target about five feet tall with a 100 yard bullseye near the bottom as a standard aiming point. There is a vertical line up the tall target paper with hashmarks at the correct elevation for his load at various longer ranges. He usually has marks for 600 and 1000 yard elevation, sometimes other distances if he is to be shooting midrange or Palma format. When he is working up a new load, the marks are made by computation, when he is confirming an existing load, he has logbook data from actually shooting at longer ranges. It does not take him long to adjust to the desired elevation and record the scope or sight setting in that logbook.

 

[Legionnaire]

Except 36 MOA on scope adjustment doesn't always move impact 36 MOA down range.

Granted. Which is why one needs to test the scope to verify accuracy of the scope's internal adjustments in addition to learning (experimentally) the external ballistics. Lots of stuff works in theory, but without verification of the variables, predictions can be off significantly.

 

[dieselchief]

using a t series weaver target or a burris signature scope I have not had problems with scope wander. while I am not a great midrange shooter (600yds) I do get by. I have found that 18inches high at one hundred gets me on at 600...
...if the scope doesn't allow enough adjustment to do that than either the rings with inserts or a slanted base is needed. not trying to over simplify the work involved. some responses were more orientated to a negative outcome instead of sure you can do it. hope it goes good for you....