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  1. #1
    Join Date
    Sep 2012
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    connahs quay
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    902

    Cool cast pellets

    in the late seventies you could get a .22 pellet mould called an lem spitzer . Cost of lead is not much as you can scrounge stuff like old pipes etc i use this to cast round ball for my muzzle loader . As for consistancy you can weigh them and batch them by weight any too heavy or light just drop em back in the pot and reuse . The pellet shape was bullet , you could run em through a sizer . I have seen a mould on here for 45 quid only this week

  2. #2
    Join Date
    May 2009
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    Lairg
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    4,906
    Hi,

    Just out of interest, here's a link to a thread with photos of the LEM moulds:
    http://www.airgunbbs.com/showthread....-pellet-moulds

    Back when they were on the market I heard they were pretty useless accuracy wise but did pack a punch if you could hit something - probably as 18wheeler has explained, to be stable from spin, a bullet shaped projectile has to be travelling at bullet shaped speeds.

    At sub sonic speeds the Shuttlecock shaped pellet is best, for the same aerodynamic reasons a Shuttlecock is shaped that way?

    I expect on the Long Range thread there will be a few people with anecdotal evidence of something like a Sussex Armoury Sabot, or those Godawful 'NATO Bullets', travelling sideways by the time they got to a 100M target - if in fact they ever got there?

    Regards

  3. #3
    Join Date
    May 2005
    Location
    malta
    Posts
    646

    built-in stability

    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.

  4. #4
    Join Date
    Oct 2006
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    stourport on severn
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    1,549
    if anyones interested ive got an original L.E.M MOULD 22 CAL £35 posted
    rgds scirroco

  5. #5
    Join Date
    Jul 2009
    Location
    London and Marlborough
    Posts
    88

    LEM Mould

    I'll take the mould Scirroco.

    I'll send you a PM regarding payment.

    Craig

  6. #6
    Join Date
    Mar 2012
    Location
    Shirland
    Posts
    503
    Quote Originally Posted by dvd View Post
    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.

  7. #7
    Join Date
    May 2009
    Location
    Lairg
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    Quote Originally Posted by ballisticboy View Post
    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...

  8. #8
    Join Date
    May 2006
    Location
    Storrington (except when in Spain for the winter)
    Posts
    411

    Cool

    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
    Last edited by lbl25a; 30-09-2012 at 10:20 AM. Reason: mistake gamo don't do .22 BB

  9. #9
    Join Date
    Apr 2002
    Location
    Rhyl N Wales
    Posts
    886

    Red face

    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.

  10. #10
    Join Date
    Apr 2012
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    Ramsey, Cambs
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    Quote Originally Posted by magnummike View Post
    in the late seventies you could get a .22 pellet mould called an lem spitzer . Cost of lead is not much as you can scrounge stuff like old pipes etc i use this to cast round ball for my muzzle loader . As for consistancy you can weigh them and batch them by weight any too heavy or light just drop em back in the pot and reuse . The pellet shape was bullet , you could run em through a sizer . I have seen a mould on here for 45 quid only this week
    I remember getting one of those back in the 70s... a couple of us spent hours making a handful of pellets, and as Oliver said, they were pretty inaccurate, probably due to inconsistancy, but if you hit something it disintegrated..

    We gave up after a short while... too much effort...

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