Help sighting in a 308.

[kmcintosh78]

Ok, so I am looking to sight in my Saiga 308. Got some questions.
If I am sighted, dead on at 100 yards, using 308 FMJ 147 grain, other then going out to the range and just throwing down lead, how do I calculate where the round should be at say 200 yards?

Any help would be great.

 

[NavyGuy]

http://www.remington.com/products/ammunition/ballistics/

Go here and play around. Looks like if you were to use UMC 150 gr with a 100 yard zero, it would fall 3.9 at 200 yds.

You wouldn't have to throw too much lead at the range to figure this one out.

 

[kmcintosh78]

I have tried this, and the fall places the 147 FMJ lower.
http://www.winchester.com/LEARNING-CENTER/Pages/Ballistics-Calculator.aspx

 

[kmcintosh78]

Now, is that actual inches from the center of the target to the drop?

 

[USSR]

Looks like if you were to use UMC 150 gr with a 100 yard zero, it would fall 3.9 at 200 yds.

Yep. You need to dial in 2MOA to go from a 100 yard zero to a 200 yard zero.

Don

 

[kmcintosh78]

USSR,
On the fly shooting, to go from 100 to 200, I will need to learn the distance/size formula and adjust visually, right?

 

[NavyGuy]

Replying to post #4

Can't open your program right now, but if it's like any other ballistics table I've seen, then yes.

Just go to the range, that's the easiest way to see what YOU and YOUR rifle will do. Ballistics tables give you an idea of what to expect. They are in controlled enviroments with THEIR test rifle. You will definetly see the drop from 100 to 200 yards on any target.

 

[rcmodel]

Disregarding all the software, you can zero 1 1/2" high at 100 yards with about any centerfire rifle and be good to go all the way from the muzzle out to 300 yards or so.

rc

 

[kmcintosh78]

I set it at 100 yards, cross hairs center, rounds hits about 2.5" to 3" high. I have figured that I am actually sighted in at around 150 feet.

 

[USSR]

USSR,
On the fly shooting, to go from 100 to 200, I will need to learn the distance/size formula and adjust visually, right?

If you're asking about shooting both distances without adjusting your sights, you would be better served with a 200 yard zero, and having your rifle shoot 2 inches high at 100 yards (just aim low at 100 yards).

Don