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Author Topic: Sighting in question  (Read 451 times)

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Offline 1911crazy

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Sighting in question
« on: January 30, 2004, 05:40:36 AM »
If you sight in your scope at 100yds with an '06 if I'm correct the bullet is 1 1/2" high at 50yds.  Now if you sight in the gun at 200yds the bullet is 1 1/2" high at 100yds??  Without having a ballistic chart here I'm trying to remember and refresh my memory.                    BigBill

The reason I'm asking is I have two scopes that have "BDC" bullet drop compisation  I can adjust the scope to the yardage for an exact pinpoint shot up to 500yds with no error.   The only draw back is they start out at a 150yd at the lowest setting.  But if thats only an 1 1/2" error at 75yds I'm ok with under 150yd shots.
Sorry for the dumb questions but they also have "AC" too adjustable Objective out to 1,000 yds. what does that do?
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Offline Lee D.

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Sighting in question
« Reply #1 on: January 30, 2004, 06:26:04 AM »
Way too many variables.  110gr. bullet vs. 180, height of scope above the bore.  The only way to "know" that your BDC is calibrated for your setup is to shoot it at every range that you will use it at.
The A.O. feature takes out the variation in crosshair position (on the target) that would result from changing your eye's position relative to the scopes centerline.
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somewhere betwixt a baulk and a breakdown

Offline 1911crazy

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Sighting in question
« Reply #2 on: January 30, 2004, 01:26:36 PM »
Actually it came with different scales for each bullet weight I have the 180gr scale in my '06 and the 225gr scale in my 338 while I never used them yet for distance.  I lost the scope directions or miss placed them somewhere.  I bought the scopes to hunt out in the midwest someday maybe an elk hunt.  There really are no long shots here all my shots seem to be under 100yds.  I guess I'm trying to have them sighted in for both worlds.                                                          BigBill
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Offline Val

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Ballistic Calculator
« Reply #3 on: January 30, 2004, 03:31:46 PM »
If you know the particulars of your load run it through this ballistic calculator:
http://www.biggameinfo.com/BalCalc.aspx
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Hunting and fishing are not matters of life or death. They are much more important than that.

Offline 1911crazy

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Sighting in question
« Reply #4 on: January 31, 2004, 11:31:06 AM »
Val thanks that chart is awesome!!!  I can pick which zero at what yardage is the most accurate for scopes without the "BDC" option.  Wow this site is awesome we can punch in all the specs and see how it goes in yardage when zeroed in at 100yds, 125yds, 150yds and 200yd zero's to pick the best zero for the flatest most accurate shooter.  Excellent site.
                                                                  BigBill
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Offline Val

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Max Point Blank Range
« Reply #5 on: February 03, 2004, 01:58:06 PM »
BigBill, you're welcome.
Did you catch the Max Point Blank Range on the top? It tells you what yardage to sight-in at for MPBR
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Hunting and fishing are not matters of life or death. They are much more important than that.

Offline 1911crazy

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Sighting in question
« Reply #6 on: February 03, 2004, 03:16:51 PM »
It really does everything for us.  When punching my my '06 specs its good for 175yds when zeroed for 150yds. with .8" error at 175yds. without using my BDC(bullet drop compisation) of course my BDC on my '06 starts at 150yds. being "zero".  But the chart is great for my rifles with no BDC I can figure the sight in for the flatest shooting distance so I know the range it can accurately shoot.  It sure takes the guess work out and saves time and ammo at the range to figure it out.        BigBill

I noticed the MPBR too this site does everything.
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