SKS shoots bang on at 25m, but 5" high at 50m?

quorum

quorum

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I'm just wondering what could be the matter. I thought the 7.62x39 round if sighted in at 25m will shoot high 2" at 50m, but mine shoots high 5" at 50m consistently using iron sights.

What could be wrong?
 
quorum said:
I'm just wondering what could be the matter. I thought the 7.62x39 round if sighted in at 25m will shoot high 2" at 50m, but mine shoots high 5" at 50m consistently using iron sights.

What could be wrong?
Click to expand...

Nothing is wrong.
 
Any gun will do this, did you zero at 25m?

Its called barrel sight relationship, you should zero at 100m with the site set to 100m not on the U setting
 
It's simple ballistics. In order to hit a target at 100m, you have to arc the shot. It just so happens that on the way up, the bullet will strike the 25m mark as it will at the 100m mark on the way down
 
Nothing to worry about my friend. It happens to any gun shooting any projectiles. Sks is precise ,you just need to be familiar with the ballistic of the round you shoot
 
so just to confirm it is a good idea to zero your 7.62x39 rifle to 25m? As it will hit dead center at 200m?
 
JNA said:
so just to confirm it is a good idea to zero your 7.62x39 rifle to 25m? As it will hit dead center at 200m?
Click to expand...

Are you using irons? or a optic?

zero at 25m will still be 3.8" low at 200m

the 25m zero is only for AR15s "25m/300m zero"
 
mrbeil said:
It's simple ballistics. In order to hit a target at 100m, you have to arc the shot. It just so happens that on the way up, the bullet will strike the 25m mark as it will at the 100m mark on the way down
Click to expand...

No I get that. That's why I said I expected it to hit the 50m mark 2" high. My issue is that it is 5" high, and not 2" high.

Google 7.62x39 trajectory with 25 yard zero - the 50 yard point is only 2" high.
https://www.google.ca/search?q=7.62...wCA&ved=0CAkQ_AUoAQ&biw=1843&bih=962#imgdii=_
(see first image)

at no point in the arc should it be higher than 3". The 3" high mark is at around 125 yards.
 
There is nothing magical about ballistics...its velocity, sight height and bullet BC that will determine POI at various close ranges. It is what it is, shoot accordlingly. If all is functioning as it should and you are doing your part properly carry on and enjoy.
I'd get somebody else with experience to give it a try and see if the results are the same.
 
hawk-i said:
There is nothing magical about ballistics...its velocity, sight height and bullet BC that will determine POI at various close ranges. It is what it is, shoot accordlingly. If all is functioning as it should and you are doing your part properly carry on and enjoy.
I'd get somebody else with experience to give it a try and see if the results are the same.
Click to expand...

Okay, but is everyone else getting the same results when sighted to a 25 yard zero with their own rifle?
 
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