25 yd zero for 243 Winchester


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Balrog
October 16, 2010, 06:59 PM
If I zero a 243 Winchester for 25 yds, at what distance will it be back on zero? And what will the spread of the trajectory be?

Does anyone have a graph that demonstrates this?

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Balrog
October 16, 2010, 07:06 PM
I think I just found the Winchester ballsistics calculator, and it looks like the 100g 243 win if zeroed at 25 yds will be back on target at 250 yards, and will be 3 inches high at about 120 yds.

Does anyone have real world experience that would confirm this?

birdshot8's
October 16, 2010, 07:28 PM
it would depend on the height of the sight, as to where the bullet crossed the line of sight. did your ballistic calculator mention sight height?

Balrog
October 16, 2010, 07:39 PM
Yes, my sight height is about 1.5 inches, and bullet weight is 100 grains

bhk
October 16, 2010, 08:08 PM
Regardless of what any chart says, it will only be close. You will have to check at longer range to verify. I have never had one work out exactly like the charts say. Some are close, some not so close, but never perfect.

Balrog
October 16, 2010, 08:14 PM
Well, thats why I was asking for what people in the real world had found.

Speed Trap
October 16, 2010, 08:47 PM
I usually go to 25 yards to get it on paper and find that once zeroed at 25, my 100 yard shots are about 4.5 inches high. This was last week with my .243 with handloads.

Kernel
October 16, 2010, 10:57 PM
100 grain bullet, bc of 0.213, mv of 2,990 fps, 1.5" sight height, sea level elevation, temp of 59 F, barometric pressure of 29.92 in-hg.

Robert Wilson
October 16, 2010, 11:46 PM
My experience has been that it doesn't matter what the charts say and it doesn't matter what folks on the internet say. The only opinion that matters is your rifle's.

IOW, you're going to have to shoot the gun at the ranges you are talking about before the truth is revealed.

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