The PH Gun Cabinet - Shooting Matters
Discussion
FurtiveFreddy said:
creampuff said:
Does the orientation of the bullet through the flight path keep pointing at the original departure angle
Yes, until as said above it starts to go transonic at at which point it can become unstable and point in all sorts of directions... red_slr said:
FurtiveFreddy said:
creampuff said:
Does the orientation of the bullet through the flight path keep pointing at the original departure angle
Yes, until as said above it starts to go transonic at at which point it can become unstable and point in all sorts of directions... 
I've just got my variation through for a 30-06, to cater for my proposed new toy for longer range use
Eh, sorry, what I meant was: if you have a very long range shot, you might dial in 60MOA = 1 deg elevation. So the bullet leaves the barrel pointing up by 1 degree. It reaches some apogee above the ground some distance down range, then descends with gravity and its decaying forward speed onto the target. Assume all this takes place supersonic; even if supersonic it will still be descending when it hits the target for long range shots.
Does it hit the target with the nose still pointing up by the 60MOA/1 degree, even though it is falling? Or does the bullet rotate to point nose down?
Does it hit the target with the nose still pointing up by the 60MOA/1 degree, even though it is falling? Or does the bullet rotate to point nose down?
Edited by creampuff on Thursday 26th April 21:42
I've been watching TiborasaurusRex Sniper 101 on Youtube about long range shooting. Some of the episodes are simple, some are quite advanced.
https://www.youtube.com/watch?v=pwG-D0HjCBQ&li...
In one of the episodes he talked about the orientation of the bullet in flight (i.e. nose up/nose down) but I can't find it again.
https://www.youtube.com/watch?v=pwG-D0HjCBQ&li...
In one of the episodes he talked about the orientation of the bullet in flight (i.e. nose up/nose down) but I can't find it again.
What is quite interesting is (and very difficult to master) is understanding what happens when the wind deflects a bullet.
In the case of a cross wind, the bullet won't be pointing along the path it's taking but will be turned into the airflow slightly (like a weather vane).
At the same time, the bullet will be gyrating (pitching and yawing) as it finds equilibrium as it travels downrange.
Difficult to visualise that, but there's a useful video about that here:
https://www.youtube.com/watch?v=KH9SCbCBHaY
This is all about spin stabilised projectiles of course. With a smooth bore gun, things are a bit different. Shooting solid slug from a shotgun, for instance.
When a lump of lead like that exits the muzzle it can be very unstable, pitching up and down and even entering the target 25 yards away almost sideways.
In the case of a cross wind, the bullet won't be pointing along the path it's taking but will be turned into the airflow slightly (like a weather vane).
At the same time, the bullet will be gyrating (pitching and yawing) as it finds equilibrium as it travels downrange.
Difficult to visualise that, but there's a useful video about that here:
https://www.youtube.com/watch?v=KH9SCbCBHaY
This is all about spin stabilised projectiles of course. With a smooth bore gun, things are a bit different. Shooting solid slug from a shotgun, for instance.
When a lump of lead like that exits the muzzle it can be very unstable, pitching up and down and even entering the target 25 yards away almost sideways.
Edited by FurtiveFreddy on Friday 27th April 15:39
creampuff said:
Does the orientation of the bullet through the flight path keep pointing at the original departure angle (i.e. will not be parallel to the direction of flight)? Or do aerodynamic forces cause it to rotate so it is always facing parallel to the direction of flight?
Small arms projectiles do not prescess, but larger, artillery shells do. It is to do with the relative position of the centre of gravity of the body relative to the centre of rotation.However strong winds can create vertical dispersion due the Bernoulli Effect.
What are the rules for using pistol caliber lever actions and semi-auto 22s on the Bisley Short Siberia range?
Last time I was there, the range office said it was OK.
There are always 22LR casings to be found on the ground.
OTOH the range regulations on the NRA website say gallery rifle by special permission only.
Last time I was there, the range office said it was OK.
There are always 22LR casings to be found on the ground.
OTOH the range regulations on the NRA website say gallery rifle by special permission only.
creampuff said:
What are the rules for using pistol caliber lever actions and semi-auto 22s on the Bisley Short Siberia range?
Last time I was there, the range office said it was OK.
There are always 22LR casings to be found on the ground.
OTOH the range regulations on the NRA website say gallery rifle by special permission only.
I've shot my Uberti 1873 on Short Siberia as has another club member with a Rossi, and I've seen many people with .22RF rifles of all types on SS as well.Last time I was there, the range office said it was OK.
There are always 22LR casings to be found on the ground.
OTOH the range regulations on the NRA website say gallery rifle by special permission only.
I wonder if they mean gallery rifle comps by special permission?
Question on gun safes. We can't find anywhere at home where a full size safe will sit vertically without standing out like a sore thumb.
Are there any safes which are designed to lie horizontally - IE with the barrel parallel with the floor rather than the wall, sort of like a gun chest?
Are there any safes which are designed to lie horizontally - IE with the barrel parallel with the floor rather than the wall, sort of like a gun chest?
Neptune188 said:
Question on gun safes. We can't find anywhere at home where a full size safe will sit vertically without standing out like a sore thumb.
Are there any safes which are designed to lie horizontally - IE with the barrel parallel with the floor rather than the wall, sort of like a gun chest?
You can get a lockable gun rack. Those sit horizontally. Are there any safes which are designed to lie horizontally - IE with the barrel parallel with the floor rather than the wall, sort of like a gun chest?
Neptune188 said:
Question on gun safes. We can't find anywhere at home where a full size safe will sit vertically without standing out like a sore thumb.
They aren't that difficult to disguise....?Lots of options to disguise them, might just need a bit of lateral thinking.
Neptune188 said:
Are there any safes which are designed to lie horizontally - IE with the barrel parallel with the floor rather than the wall, sort of like a gun chest?
Yes, but, they are small, so a couple of shotguns and that's it (Brattonsound do them)If its for rifles, then you'll have no option other than to use a vertical one.
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