Reading a ballistics table chart, help needed

[everSearching]

Hi all.

Can someone help me understand what’s going on in the attached pic of a ballistics table?

Best,

Tony

 

[FMJ]

First black line says ZERO range 100 pretty sure it means if gun was sighted in @ 100 Yards

 

[Jsimon78]

Theres no easy way to tell you without pointing and verbally telling you.
It looks like you’re sighted in at 100 yards with your sight on a 59 degree day. The bottom part shows what the 9mm (not sure) bullet is doing. I also presume you’re inside since there is no wind.

 

[everSearching]

Trying to figure out how much a 9mm, 115 gr., FMJ round drops at 550 yards (approx 1,670 feet). Roughly.

 

[everSearching]

Is the attached graph telling me that at about 550 yards the bullet has dropped about 50 feet?!

 

[Jsimon78]

Is the attached graph telling me that at about 550 yards the bullet has dropped about 50 feet?!View attachment 97665

It might be. Personally I don’t try to overthink things like this unless if I have too. The only thing I remember for distance to certain point you will have to add in the curvature of the earth too.

 

[Biggfoot44]

Is the attached graph telling me that at about 550 yards the bullet has dropped about 50 feet?!View attachment 97665

Yes , the above chart is telling you that 9mm 115 gr , at that velocity , zero'ed at 100yds , will be aproximately 50 feet low at 550 yards ( which is more or less 500 meters ) .

 

[Biggfoot44]

To possibly be more helpful , what are you trying to find out / trying to do ?

Are you seeking to make hits at 500 -ish yards with your 9mm pistol ? Or ???

 

[shanneba]

Also the sight is shown as 1 1/2" above the center of the barrel bore (typical of scopes on rifles), most pistols will be closer to an inch or less with open sights, may be more if you have a Dot.

 

[trader]

just out of curiousity what are you trying to accomplish at that range, as a 9mm, like most SDF pistol ammo, is not going to have meaningful energy at 500 yds.

 

[everSearching]

To possibly be more helpful , what are you trying to find out / trying to do ?

Are you seeking to make hits at 500 -ish yards with your 9mm pistol ? Or ???

 

[everSearching]

There is a house that distance from my house to a neighbors place. I shoot in this exact direction. The is a gradual hillside behind my house that is probably 10 to 15 above where the target is set. I’ve never shot anywhere close to 10 feet above the target. Should I be concerned?

 

[BookemDano]

Your local laws should also be considered.
For me, I need 5000 feet from occupied dwellings.

 

[FMJ]

I'm kinda slow sometimes but here goes......ur worried about shooting to high and hitting a house?

 

[Jfal]

Sorry, I want to comment, but I can't understand some of the sentences above....

 

[SL66]

Glad I am not your neighbor. More important is YOU are glad as well, "Return to sender"!

 

[Biggfoot44]

There is a house that distance from my house to a neighbors place. I shoot in this exact direction. The is a gradual hillside behind my house that is probably 10 to 15 above where the target is set. I’ve never shot anywhere close to 10 feet above the target. Should I be concerned?

Are you likely to hit neighbor's house accidently ( if l'm understanding correctly ) ? Not very likely

Should you be concerned ? Yes !

Either shoot in a different direction , or build a proper backstop , of significant height .

 

[everSearching]

Ok. Try this on for size. I'm shooting 9mm pistols with 115 FMJ. If I shoot over the corner of my property then I have 3,000 feet door to door to the first in the flight path of the projectile. Using the ballistics calculation on Federals website at 2,000 yards the bullet was almost falling straight down, almost no energy left. That gives me a 1,000 cushion. On either side of that centerine, I have about 300 to 400 yards before I'd get close to a house. There is a little brush there but I'll clear it out so I can see far into the field behind. So what do you think? Remember, I have a fifteen foot high rise behind the house that would be above the target. Still too risky?

Any input welcomed.

 

[everSearching]

And, there would only three people that would ever shoot here and everyone practices 'don't put your finger in the trigger guard until you are on target.'

 

[everSearching]

And, when I went on Google maps to remeasure everything I'd discovered my first flight path was actually 2,046 feet because I had measured to a barn and not the house. So if the bullet traveled that far it, again, would have almost zero energy left.

If it were you shooting, would you be concerned?