pellet making

[dvd]

Both waisted pellets and bullets spin when shot out of an air gun,
The difference is that the former is inherently stable due to two factors;
a)the pellet is usually nose-heavy
b)the tail is flared and the resultant drag at the rear stabilizes it to keep it flying nose first.The shuttlecock shape is perfect for dynamic balance. In fact the squash shuttlecock always rights itself and travels nose first when hit by the racquet.

The bullet has to rely just on spin to keep it stable in flight. Most air guns can not provide that kind of velocity to give enough spin to stabilize the bullet all the way to the target, resulting in open groups.

[scirroco]

if anyones interested ive got an original L.E.M MOULD 22 CAL £35 posted
rgds scirroco

[tunnelrat]

I'll take the mould Scirroco.

I'll send you a PM regarding payment.

Craig

[ballisticboy]

Both waisted pellets and bullets spin when shot out of an air gun,
The difference is that the former is inherently stable due to two factors;
a)the pellet is usually nose-heavy
b)the tail is flared and the resultant drag at the rear stabilizes it to keep it flying nose first.The shuttlecock shape is perfect for dynamic balance. In fact the squash shuttlecock always rights itself and travels nose first when hit by the racquet.

The bullet has to rely just on spin to keep it stable in flight. Most air guns can not provide that kind of velocity to give enough spin to stabilize the bullet all the way to the target, resulting in open groups.

Just a couple of things.
1) Flare drag does not stabilize a pellet, flare lift is the stabilizing moment just the same as fins.
2)Speed is nothing to do with gyroscopic stability, there are plenty of spin stabilized rounds much slower than pellets. It is the relationship between the spin rate, the moments of inertia, the pitching moments and the air density which determine the gyroscopic stability of a projectile.

[oliver13]

Just a couple of things.
1) Flare drag does not stabilize a pellet, flare lift is the stabilizing moment just the same as fins.
2)Speed is nothing to do with gyroscopic stability, there are plenty of spin stabilized rounds much slower than pellets. It is the relationship between the spin rate, the moments of inertia, the pitching moments and the air density which determine the gyroscopic stability of a projectile.

Wibble...

[lbl25a]

I used to cast all my own bullets when I had a .45 colt 1911 and still have the equipment. I have LEM Spitzer moulds in .22 and .25 but have never got any accuracy out of them. I think that the shape of the bullet is wrong.
I have thought of modifying the LEM moulds to form a boat tailed bullet but not tried it yet.
Tony

[Mof]

I also have a lem spitser mould in .22, I have made different brass heads for it in about 3/8" dia ball for catapult ammo also I made .177 heads for it, but the .177 was not very good. I can still put the .22 spitzer head back on it so its various calibre s all in one. accuracy was ok although looking through the scope the pellets seemed to spriral towards the target yet still seems ok. the back of the spitzer pellet is reasonably flat and shiny so when you are shooting away from the sun its like a tracer. No I am not selling it.

[lbl25a]

I also have a lem spitser mould in .22, I have made different brass heads for it in about 3/8" dia ball for catapult ammo also I made .177 heads for it, but the .177 was not very good. I can still put the .22 spitzer head back on it so its various calibre s all in one. accuracy was ok although looking through the scope the pellets seemed to spriral towards the target yet still seems ok. the back of the spitzer pellet is reasonably flat and shiny so when you are shooting away from the sun its like a tracer. No I am not selling it.

What sort of accuracy did you get with .22 Spitzer? What barrel? I was thinking of keeping the front part of the mould and making a new rear to give a longer bullet. It would be a lot heavier but using FAC velocities it might work.
Tony

[Mof]

I was using them in a .22 Sharp innova and from what I remember the accuracy was not bad although as I said they were very visible through the scope sort of taking a corkscrew flight but still hitting my tin cans. If its fine tomorrow I will get some out and shoot some at 25 yds and let you know the group size. I found out in the end that one may as well buy some heavy weight pellets like Bisley magnums and save the hassle of making them.