.22 travel distance ?.

[team tractor]

10 minutes ago, Rewulf said:

I would be most surprised if a subsonic .22lr made it 1 mile , never mind 2.

The centrefire going 5 is a bit of a stretch too, 3 is more probable depending on calibre.
50 BMG has an effective range of about 2000 metres (not accurate) and a max range of about 6800 metres (about 4 miles) fired straight up , about 2000 metres before it runs out of steam.
Its interesting to see how they conduct distance records for rounds like the Cheytac , they shoot from the tops of mountains to be able to keep sight on to the target as the drop is so extreme.

I still wouldn’t want to stand a mile away tho 😂. 
I had a ricochet come straight back at me after shooting a bunny only 60 yards away . It hit next to my head.

I totally **** my pants 😅

[Rewulf]

44 minutes ago, team tractor said:

I still wouldn’t want to stand a mile away tho 😂. 

No me neither 

[TOPGUN749]

4 hours ago, Ultrastu said:

Chairgun has a 40 grn .22 lr sub sonic 1050 fps with a bc of 0.138 

Travelling 1713 yards  shot at 30 degrees 

Landing with 6.5 fpe of energy  for a flight time of 18 seconds. 

And reaching an altitude of 1364ft  before coming back down 

Obviously  this is theoretical. And presumes ideal conditions .

Real world factors will influence all these results but its a great starting point .as the range could be further or shorter  .

1713 yard is 0.97 of a mile .

18 seconds in flight,really? Seems a very long time! If the bullet averaged just 500 fps it would take 10 seconds, 18 seconds would give an average velocity of just 285 fps.

[Walker570]

4 hours ago, Ultrastu said:

So if you said yeah they will travel a mile you would be about right .

It's interesting  as I've tested the range of different size shotgun pellets .and have found that they tend to have a max range and it's hard to get them to go much beyond  that range without a serious following wind directly behind them .

200 yds for  no7.5 

225 no6 

250 no5 

The calibre  and stated speed (out side of subs ) doesn't seem to matter .

 

I know back in the 60s and 70s when shooting clays the suggested safe arc  from shooting positin was 300yrds so well within your ranges for safety. I have been peppered a few times when picking up once by a Lord of the Realm twice and he knew full well I was there. I left the field post haste and explained why to the Keeper.

It is all very well giving ranges etc etc but again it all come down to safety/backstop etc.  I often will not take a second shot at a partridge or pheasant  coming through the linebecause my shot may well touch down around peg nine.  Again over the years I have seen it many times from other guns.

[Ultrastu]

9 minutes ago, TOPGUN749 said:

18 seconds in flight,really? Seems a very long time! If the bullet averaged just 500 fps it would take 10 seconds, 18 seconds would give an average velocity of just 285 fps.

Terminal velocity in my scenario above is 268 fps .

I used  chairgun ballistic app to predict the external ballistics of the .22 lr .

While I'm not going go out and test this .22lr  .I've learnt to trust its predictions  as its proved extremely spot on with other calibers out to 150 yds and more .

Don't forget the bullet is travelling  in a big arc not a straight line  so the distance  the bullet actually  travels is further  than the straight line distance  along the ground and why you can't use the the speed of sound as a comparison to calculate the time .(which I presume you were .) 

[Dave-G]

I got a near 'miss me' after shooting a golf ball .22LR. :-)

 

Edited November 12, 2022 by Dave-G

[Ultrastu]

Also to try and use the speed of sound as a means of calculation (of a bullet ) .is flawed  the speed of sound is a constant in the same density of air its travelling through.ie it doesn't slow down over distance .a bullet  will obviously  slow down but it does so very rapidly  initially  and then much less so as time and distance  progress  (presuming stability  through the entire flight .) So you can't take half the velocity  (muzzle to terminal ) as the average speed to target  .

The speed of sound is around 4.7 seconds per mile . A test my mate and I confirmed this summer  when we found our selves exactly 1 mile apart and on the phone to each other  , a shot gun was fired and the time taken to hear it a mile away confirmed at around 5 seconds .

Which was really cool to do.

[Ultrastu]

30 minutes ago, Walker570 said:

I know back in the 60s and 70s when shooting clays the suggested safe arc  from shooting positin was 300yrds so well within your ranges for safety. I have been peppered a few times when picking up once by a Lord of the Realm twice and he knew full well I was there. I left the field post haste and explained why to the Keeper.

It is all very well giving ranges etc etc but again it all come down to safety/backstop etc.  I often will not take a second shot at a partridge or pheasant  coming through the linebecause my shot may well touch down around peg nine.  Again over the years I have seen it many times from other guns.

I discovered that gamebore black gold no 5 shot  supposed to be 2.8 mm  is actually much larger measuring around 3.2 - 3.4 mm  I guess due to the coated lead shot making it.bigger .

On a very windy day (from behind .) The shot was travelling around 300 yds  and landing on a tin roof I thought it wouldn't reach .

As  such I no longer shoot black gold or any shot bigger than no 6 -2.7 mm  

As I want to keep the maximum  ranges reduced .

And to be fair I'm only trying to kill birds up to 40 yds so the smaller shot is more than enough .

[Scully]

6 hours ago, ditchman said:

the graph dosnt look right....at the firing point it appears that the shot is taken from an inclined barrel...........??..........what do you rekon >

I thought that initially, but at ‘ 48 inch flat’ it could be from an upright stance? We all know the .22 has a trajectory like an artillery shell, so figured it sounded about right. 🤷‍♂️

5 hours ago, old'un said:

Although we live in different times with a much bigger population I can remember an old keeper who used to shoot hundreds of branchers every year with a .22 rimfire, something that would be frowned on now, during the early part of the 1900s Rook rifles were in common use and thousand were produced in cal from .22 up to .400 @ 1500 ft/s (rook, rabbit rifle) shudder to think how far that would travel and the damage it would do if it hit someone.

Some of us still do. I haven’t shot branchers for two or three years now, but whenever I do it’s with my .22rf. 

[old'un]

39 minutes ago, Scully said:

I thought that initially, but at ‘ 48 inch flat’ it could be from an upright stance? We all know the .22 has a trajectory like an artillery shell, so figured it sounded about right. 🤷‍♂️

Some of us still do. I haven’t shot branchers for two or three years now, but whenever I do it’s with my .22rf. 

It would worry me where that bullet ended up, or is it a case that the area you shoot is so remote, or the angle of the shot would would mean the bullet just falls to earth, mind you I would think that being hit on the head by it would still hurt?

[Scully]

1 hour ago, old'un said:

It would worry me where that bullet ended up, or is it a case that the area you shoot is so remote, or the angle of the shot would would mean the bullet just falls to earth, mind you I would think that being hit on the head by it would still hurt?

Not really. It’s a Rookery with two farmhouses less than 100 yards away on one side and another house a similar distance on the other side. 
I used to use a shotgun but it attracted too much unwanted attention, then read an article in Sporting Gun by Richard Brigham who stated he used a .22rf. I tried it and have used my .22rf ever since. 
I stand directly below the bird and fire vertically up through it. 
 

[Westley]

21 hours ago, Walker570 said:

Many moons ago I was standing in as Coroners Officer whilst he had surgery and had to go to a meeting where I met the Officer from the other side of the city. He had just dealt with a case, where a young lady sitting in a park was hit in the neck and killed with a 22 bullet fired a considerable distance. This was Barr Beacon and the bullet had been fired up at a crow in a tree and travelled over the Beacon before hitting the lady. .....the distance is irrelevant  as  magman hit the nail on the head.

Similar situation in Merseyside,  a young horse rider shot in the head by someone shooting 'branchers' around 3/4 of a mile away. 

[Ultrastu]

1 hour ago, Scully said:

Not really. It’s a Rookery with two farmhouses less than 100 yards away on one side and another house a similar distance on the other side. 
I used to use a shotgun but it attracted too much unwanted attention, then read an article in Sporting Gun by Richard Brigham who stated he used a .22rf. I tried it and have used my .22rf ever since. 
I stand directly below the bird and fire vertically up through it. 
 

Do you wear a helmet when doing this .? 

[Scully]

31 minutes ago, Ultrastu said:

Do you wear a helmet when doing this .? 

Just my normal cap. 👍

[TOPGUN749]

5 hours ago, TOPGUN749 said:

18 seconds in flight,really? Seems a very long time! If the bullet averaged just 500 fps it would take 10 seconds, 18 seconds would give an average velocity of just 285 fps.

6.5 fpe on landing is 270fps for a 40 grain bullet,but allowing for the curve of flight path it may have covered over 2000 yards,so 500fps average velocity may not be far out.

[samboy]

I've certainly started something here. Best i don't ask anymore questions 😂.

[Jaymo]

10 hours ago, samboy said:

I've certainly started something here. Best i don't ask anymore questions 😂.

At least you didn’t ask what colour carts are best….

[London Best]

11 hours ago, samboy said:

I've certainly started something here. Best i don't ask anymore questions 😂.

A very interesting thread, which, through enlightenment, could ultimately prevent a dangerous accident.

[Walker570]

15 hours ago, TOPGUN749 said:

6.5 fpe on landing is 270fps for a 40 grain bullet,but allowing for the curve of flight path it may have covered over 2000 yards,so 500fps average velocity may not be far out.

Certainly powerful enough to kill a human being ....ok the young woman was hit in the artery in the neck but still the bullet was travelling fast enough to kill her.

[TOPGUN749]

36 minutes ago, Walker570 said:

Certainly powerful enough to kill a human being ....ok the young woman was hit in the artery in the neck but still the bullet was travelling fast enough to kill her.

Yes if hit within half a mile or so the consequences can be fatal.I have an old BSA bolt action from the 50’s which the police handed to a gun dealer almost 50 years ago which I was told was shot in a field and hit a scooter rider nearby in the neck killing them,from a few hundred yards.

[Gas seal]

Mythbusters have done a lot of testing with firearms. Firing a bullet into the air, the 90- degree barrel and a very interesting one bullet fired vs bullet dropped. I’ve seen a lot of the programs it was a very good show. A lot of testing they have done with firearms is on u tube . 

 

[Newbie to this]

8 hours ago, Jaymo said:

At least you didn’t ask what colour carts are best….

Well, that's because everyone knows it Red, so pointless asking that one 

[wymberley]

On 12/11/2022 at 15:57, Ultrastu said:

I discovered that gamebore black gold no 5 shot  supposed to be 2.8 mm  is actually much larger measuring around 3.2 - 3.4 mm  I guess due to the coated lead shot making it.bigger .

On a very windy day (from behind .) The shot was travelling around 300 yds  and landing on a tin roof I thought it wouldn't reach .

As  such I no longer shoot black gold or any shot bigger than no 6 -2.7 mm  

As I want to keep the maximum  ranges reduced .

And to be fair I'm only trying to kill birds up to 40 yds so the smaller shot is more than enough .

Aren't Black Gold part of the "performance" range and as such are one size up from the norm?