Advanced Marksmanship How to determine holdover

[Padre']

I am new to long range shooting and although I understand the concept of holdover I having a difficult time finding data/instruction on how to determine it for my rifle/bullet combination. I am shooting 308 Federal Match with a muzzle velocity of 2710 ft/second. I know my drop in MOA and mils out to 1000yds, how do I take that information and determine my holdover?

Thanks for your assistance.

Padre'

 

[Bill Larson]

Re: How to determine holdover

if MOA is known...as in proven by shooting at all ranges........(ballistic programs are only a guide...bullets,barrels,temp,elevation all affect)...
holdover using reticle of your choice.

 

[Rifles Only]

Re: How to determine holdover

If you are using MOA for your turrets and a MIL reticle, take your MOA and divide by 3.43. This will give you the answer in mils.

 

[Padre']

Re: How to determine holdover

Jacob,

Could you please give me an example of what you described.

Thanks.

 

[Rifles Only]

Re: How to determine holdover

That's it

 

[Graham]

Re: How to determine holdover

Here is how it is derived:

1 MOA at 100 yards is 1.047"
1 Mil at 100 yards is 3.6"
3.6 divided by 1.047 is 3.438

MOA to Mils: Divide by 3.438
Mils to MOA: Multiply by 3.438

Because that's always true regardless of conditions, write it down in your logbook.

 

[mkollman74]

Re: How to determine holdover

This one's covered... Do what these guys said.

 

[RobertB]

Re: How to determine holdover

Padre, what kind of scope do you have? Just curious.

 

[Padre']

Re: How to determine holdover

Leupold Mark 4 4.5-14