Need some OCUK knowledge

[tres]

No those that have suggested otherwise are wrong.

If you ignore all resistance and transonic effects, the bullet fire vertically would reach an altitude of 6.24km.
Whist the one fired horizontally (assuming a shot height of 1.5m obove the ground) would only travel 193.5m before hitting the ground.

basic GCSE Physics: using v²=u²+2as and s=ut+0.5at²

I woudl have thought you'd easily get more than 1 km in altitude, but the problem is actually far more complex than it may appear. Take in to considereation that: 350m/s is above Mach 1 at s.t.p hence oblique and normal shockwaves appear; air is infact not invicid, resulting in skin drag from boundary layer formation and the bullet has a large, turbulent wake inducing realtively large form drag; the atmospheric changes between sea level and your final altitude are enough to not only change the speed of sound, but the flow regieme around the bullet and the resulting pressure gradients and drag forces. You could also consider the change in gravitiational field strength as the bullet increases its altitude.

Long words = confused friend = 5 pints of Guinness.
I owe you one of them.

 

[Klo]

No those that have suggested otherwise are wrong.

If you ignore all resistance and transonic effects, the bullet fire vertically would reach an altitude of 6.24km.
Whist the one fired horizontally (assuming a shot height of 1.5m obove the ground) would only travel 193.5m before hitting the ground.

basic GCSE Physics: using v²=u²+2as and s=ut+0.5at²

I woudl have thought you'd easily get more than 1 km in altitude, but the problem is actually far more complex than it may appear. Take in to considereation that: 350m/s is above Mach 1 at s.t.p hence oblique and normal shockwaves appear; air is infact not invicid, resulting in skin drag from boundary layer formation and the bullet has a large, turbulent wake inducing realtively large form drag; the atmospheric changes between sea level and your final altitude are enough to not only change the speed of sound, but the flow regieme around the bullet and the resulting pressure gradients and drag forces. You could also consider the change in gravitiational field strength as the bullet increases its altitude.

Thats not really basic GCSE physics, its more moderately complicated A level physics. Well it was for me =/

 

[bledd]

No chance regarding the horizontal one, vertical I don't know, but wouldn't bet against it..

 

[Rroff]

No those that have suggested otherwise are wrong.

If you ignore all resistance and transonic effects, the bullet fire vertically would reach an altitude of 6.24km.
Whist the one fired horizontally (assuming a shot height of 1.5m obove the ground) would only travel 193.5m before hitting the ground.

basic GCSE Physics: using v²=u²+2as and s=ut+0.5at²

I woudl have thought you'd easily get more than 1 km in altitude, but the problem is actually far more complex than it may appear. Take in to considereation that: 350m/s is above Mach 1 at s.t.p hence oblique and normal shockwaves appear; air is infact not invicid, resulting in skin drag from boundary layer formation and the bullet has a large, turbulent wake inducing realtively large form drag; the atmospheric changes between sea level and your final altitude are enough to not only change the speed of sound, but the flow regieme around the bullet and the resulting pressure gradients and drag forces. You could also consider the change in gravitiational field strength as the bullet increases its altitude.

Not sure about your maths - in the real world a .22 round would have dropped ~3 inches at 195m fired horizontal. The max possible range assuming perfect angle is around 2.5Km. Fired straight up under ideal conditions a .22 LR with the right grain, powder, etc. might make 1200m possibly but normally far short of that.

 

[whitecrook]

Not sure about your maths - in the real world a .22 round would have dropped ~3 inches at 195m fired horizontal. The max possible range assuming perfect angle is around 2.5Km. Fired straight up under ideal conditions a .22 LR with the right grain, powder, etc. might make 1200m possibly but normally far short of that.

But once it gets to the top it has to come down again, so 'distance travelled' is doubled.

 

[Meridian]

The OP said .22 pellet. Assuming that he really meant a pellet (that is, from an air weapon), then there's no way on earth it would 1km in any direction: air resistance and its light weight would see to that. If, however, he meant .22 bullet, then 1km may be possible vertically, but not horizontally. The longest range anyone has been hit by a .22 that I am aware of if around 500 yards, and the weapon concerned was aimed at a fair angle.


M