Rifle Scopes How much MOA needed on base/mount for 1k?

[NndMojoman]

Scope: Vortex razor gen 2. Factory specs state 28 Mrad of adjustment.
Mounting heigth 1.18
Rifle: Bergara bmp14 6.5 creedmoor
Bullet Ballistics: Hornady ELDX 143gn 2750 fps
Data says i need 30.5 moa at 1k yrds.
according to article i read it says scopes total adj. divided by 2. So 28/2=14 14-5 (zero adj.) =9
So 9moa usable adjustment available.
Adding a 20moa base would give me 29 moa of adjustment.
Does this look right?

 

[stello1001]

1. You're mixing up MOAs with MRADs

2. Is 2750 what you chrono'd those rounds to shoot out of your rifle? Or are you figuring that MV simply by reading it off the box?

 

[NndMojoman]

2750 chrono'd

 

[XLR308]

A 20 MOA base will be more than adequate to 1k.

 

[Stevo3556]

What Stello said in 1.
20 MOA equals 5.82 Mils
If you don't have a ballistics calculator, you can go to the Vortex site and use theirs.
Just fill out the info that you have and look at the range card. I would think this would get you close enough.

 

[Stevo3556]

For a quick example I am shooting past 1200 with my 260 Rem with the same scope and 20MOA base and have more turret travel to go.

 

[Precision Underground]

You need these.

Though I would get a 20 MOA base and those to adjust exactly where I want it.

 

[NndMojoman]

My mistake. Looks like 9.3 mrad needed for 1k yrds.

 

[stello1001]

What Stello said in 1.
20 MOA equals 5.82 Mils
If you don't have a ballistics calculator, you can go to the Vortex site and use theirs.
Just fill out the info that you have and look at the range card. I would think this would get you close enough.

I was about to explain all this lol, but I think you referred the OP to a reasonable and reliable source.

Also, to the OP, remember that if your scope has 28 MRADs of total adjustment, you divide by 2 and get 14 MRADs not MOAs. This is more less a ballpark figure how much useable elevation you'll have but not exactly a for sure thing!

 

[Stevo3556]

I just suggested Vortex because I used it for a long time before buying a Garmin 701 with AB. It is a great free easy to use site.
Basically one MOA equals .29 Mrad. You can quickly find a site using Google to use a fast convertor.

 

[NndMojoman]

Main reason I'm asking is that I'm thinking about buying a spuhr mount and can only afford to do it once and want to buy the right one. I have a 20 moa base already mounted. Still working up to 1k but would like to hit that 1mile one of these days. So with current setup a 0moa mount with a 20 moa base is adequate to 1k yrds?

 

[pell1203]

Main reason I'm asking is that I'm thinking about buying a spuhr mount and can only afford to do it once and want to buy the right one. I have a 20 moa base already mounted. Still working up to 1k but would like to hit that 1mile one of these days. So with current setup a 0moa mount with a 20 moa base is adequate to 1k yrds?

Yep! More than adequate for 1k yards with scope you are using. A 0 MOA mount with a 20 MOA base will likely get you out to about 1500 yards with the setup you have described.

 

[NndMojoman]

Thanks for the info.

 

[Dthomas3523]

As said before, you’re fine. My k525i is 28 or 29 mils. With a 20moa base, I have almost 20 mils of useable elevation on my 6creed.

That gets me to 1600 or so (only taken it to 1100 so far).

 

[Reaper350]

I like my spur mount IN 20MOA

https://www.milehighshooting.com/brands/Spuhr-Mount.html