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Joab

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Discussion starter · #1 ·
How far will it shoot before dropping to the ground? How about 38 Special? Shot from a 16 inch M92 Carbine?

Im trying to figure if I can safely shoot it in my neck of the woods. Thanks!
 
You need to consult a ballistics table (and there are some programs that do this too), plug in your bullet weight and its velocity and from a given zero point it will estimate the rise and fall of the bullet.

I don't have one or I'd post it up, but I think my old Speer and Hornady manuals have tables for the more popular rifle rounds.
 
You would need to be a little more specific on the loads/velocities your asking about, but for grins I looked up one load on the Speer data tables (these values are approximate and have to be viewed accordingly).

If you drive a 125 grain JHP from a .357 Magnum rifle to 2000 fps and zero the rifle for 100 yards, it shows the trajectory as:

Muzzle / -1.5"
50 yards / 0.7"
100 yards / 0.0
150 yards / -4.8"
200 yards / -15.2"
250 yards / -32.7"

This just puts you in the ballpark of course, real range testing is needed to confirm your setup. For me, that load would have a 150 yard max.
 
357 bullets are not very aerodynamic in design. So, they'll slow sooner than bullets that have a high ballistic coefficient.

They'll still go a long way, however. I would guess at least a mile, and probably more in a hi velocity loading.
 
I dont know how far it will "technically go" but id say effectively its good out to 100-150 yards or so. but as to how far as if you aimed up at the best angle to get distance..no idea/. Im assuming you have some sort of backstop or is that why your asking?
 
Folks need to catch up on back episodes of "Mythbusters". They covered the issue of how far a bullet would travel if the barrel was parallel to a flat surface. bear in mind forward velocity has no effect on the pull of gravity. The distance depends on velocity but the constant is time. Take the bullet and drop it from the projected height and it will hit the ground in the same amount of time as one fired perfectly parallel to the ground from the same height. Of course firearms are very rarely parallel to the ground when fired
 
You would need to be a little more specific on the loads/velocities your asking about, but for grins I looked up one load on the Speer data tables (these values are approximate and have to be viewed accordingly).

If you drive a 125 grain JHP from a .357 Magnum rifle to 2000 fps and zero the rifle for 100 yards, it shows the trajectory as:

Muzzle / -1.5"
50 yards / 0.7"
100 yards / 0.0
150 yards / -4.8"
200 yards / -15.2"
250 yards / -32.7"

This just puts you in the ballpark of course, real range testing is needed to confirm your setup. For me, that load would have a 150 yard max.

I think these #'s are close. Kel Tec Sub 2000 has a graft in the manual A 9mm with 16 inch, zero at 100 yards will drop 22 to 28 inches at 200 yards. I would think a .357 shot straight would hit the ground by 300 yards.
 
. Take the bullet and drop it from the projected height and it will hit the ground in the same amount of time as one fired perfectly parallel to the ground from the same height.
This is true. However the OP asked how far will it go. ALL bullets fired out of ALL guns where the barrel is the same vertical distance from the ground, angled at 90 degrees(i.e., parallel to the ground), will hit the ground at the same time. However, the .270 Mag will travel a greater distance downrange than will the .357, even though they will both hit the ground at the same time. This is what Galileo proved by dropping different weighted objects from the Tower of Pisa.
 
This is true. However the OP asked how far will it go. ALL bullets fired out of ALL guns where the barrel is the same vertical distance from the ground, angled at 90 degrees(i.e., parallel to the ground), will hit the ground at the same time. However, the .270 Mag will travel a greater distance downrange than will the .357, even though they will both hit the ground at the same time. This is what Galileo proved by dropping different weighted objects from the Tower of Pisa.
Exactly the point. Take the time it takes, in seconds, for a dropped bullet from the same height, to hit the ground and multiply by the load's FPS and you will have a very close answer.
 
Exactly the point. Take the time it takes, in seconds, for a dropped bullet from the same height, to hit the ground and multiply by the load's FPS and you will have a very close answer.
That only works if you are holding the gun barrel level. Point the barrel up in the air and the energy of the bullet comes into play. In other words if I aim a .45 acp and a .50 bmg both at a 45 degree angle the .50 bmg will spend more time in the air.

posted from my stupid smart phone, please excuse any spelling mistakes.
 
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