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PaulS Super Member
Joined: Feb 18, 2006 Posts: 4330 Location: South-Eastern Washington - the State
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Posted: Fri Nov 07, 2014 6:26 pm Post subject: Centerfire 22 long rifle |
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I have successfully made the first 22 Long Rifle Centerfire cartridge. (my belief)
I did it using a 25 ACP case. I trimmed the rim to the right diameter, cut some of the web out of the case and formed it using three dies that I made from grade 8 bolts. I have a decapping pin and a capping rod. Now I have to make a powder measure that can accurately meter 0.5 to 1.5 grains of HP-38 and make a bullet mold to cast some bullets.
I plan on using 40 grain bullets at 1250 fps - just like the standard 22 LR rim fire.
I will be able to shoot them from my contender with the 22LR barrel.
_________________ Paul
__________________
Speer, Lyman, Hodgdon, Sierra, and Hornady = reliable loading data
So and So's pages on the internet = NOT reliable loading data
Always check data against manuals
NEVER exceed maximum listed loads |
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6397 Location: Sydney Australia
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Posted: Fri Nov 07, 2014 8:47 pm Post subject: Re: Centerfire 22 long rifle |
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PICTURES!!! Please.
I am VERY interested in these kind of things.
_________________ A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.
Do - Not try!
gelandangan.weebly.com/ |
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DallanC Site Admin
Joined: Jan 18, 2005 Posts: 3572 Location: Utah
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Posted: Fri Nov 07, 2014 11:06 pm Post subject: Re: Centerfire 22 long rifle |
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Crazy, post some pictures of the loaded rounds.
-DallanC
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TRBLSHTR Super Member
Joined: Mar 23, 2007 Posts: 1071 Location: Lower 48's-left coast(near portlandia)
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Vince Site Admin
Joined: May 25, 2005 Posts: 15715 Location: Brisbane AUSTRALIA
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Posted: Sat Nov 08, 2014 1:10 am Post subject: Re: Centerfire 22 long rifle |
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You have done good Paul. Love to see some pics mate, and also some engineering drawings (without giving away your secrets of course). Like Gelan, I am very interested.
There are moulds available for .224 calibres mate, you shouldn't have any trouble finding something. Biggest pain in the butt is fitting gas checks, if you want to use them...they are so small and fiddly. Layman make a 44gr mould, designed for the Hornet, that closely resembles the .22 bullet.
I'm not sure what electronic scale could measure the loads you are talking about, but I used to easily weigh down to 2gr using a Redding Balance Beam scale.
A standard small pistol primer with a couple of grains of a fast burning powder will give you good velocity...I'd hazard a guess in the 1300-1400 fps easily.
_________________ Cheers, Vince
Illegitimi non carborundum
(Never let the bastards grind you down)
Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God.
"Nulla Si Fa Senza Volonta."
(Without Commitment, Nothing Gets Done) |
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6397 Location: Sydney Australia
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Posted: Sat Nov 08, 2014 4:28 am Post subject: Re: Centerfire 22 long rifle |
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the problem that I can see is that the case of the 22lr is the same diameter with the projectile,
22 lr projectile have smaller diameter on the end within the case, then it stepped up to the diameter of the case.
Reloaded cases to fit standard chamber should also use similar stepped projectile to maintain rifling seal and thus accuracy.
next, for such limited case volume, very strong crimp is required to get efficient combustion. This means the reloadable shell might have very short life.
_________________ A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.
Do - Not try!
gelandangan.weebly.com/ |
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Vince Site Admin
Joined: May 25, 2005 Posts: 15715 Location: Brisbane AUSTRALIA
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Nov 08, 2014 7:46 am Post subject: Re: Centerfire 22 long rifle |
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PaulS wrote: |
I have successfully made the first 22 Long Rifle Centerfire cartridge. ... I plan on using 40 grain bullets at 1250 fps - just like the standard 22 LR rim fire. |
22 LR still that hard to find in the Northwest? I'll send you a brick if you are that desperate.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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Bushmaster Super Member
Joined: Jun 12, 2005 Posts: 11391 Location: Ava, Missouri
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Posted: Sat Nov 08, 2014 10:04 am Post subject: Re: Centerfire 22 long rifle |
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O K Paul. It didn't happen if there are no photos. I'm more interested in the die set up.
_________________ I have one nerve left and yer standin' on it...
DEMOCRACY Two wolves and one sheep voting on what to have for lunch...
LIBERTY A well armed sheep contesting the outcome of the vote... |
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DallanC Site Admin
Joined: Jan 18, 2005 Posts: 3572 Location: Utah
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Posted: Sat Nov 08, 2014 11:18 am Post subject: Re: Centerfire 22 long rifle |
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slimjim wrote: |
22 LR still that hard to find in the Northwest? I'll send you a brick if you are that desperate. |
For most people yes it is. I just sold a co-worker a brick (for what I paid, $25) as she mentioned they had been looking since the first of the year and have never found it for sale.
I see bricks for sale about once a week, pass on most of them but I have bought some off and on over the summer, maybe 5,000 rounds worth. I used a few bricks as tips for hunts, few for presents, sold a couple to friends and shot up a couple.
But yea, its generally not in stock in local stores.
-DallanC
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6397 Location: Sydney Australia
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Posted: Sat Nov 08, 2014 3:08 pm Post subject: Re: Centerfire 22 long rifle |
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Hmm 22 shortage, primer shortage and now I also heard of powder shortage..
Odd..
_________________ A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.
Do - Not try!
gelandangan.weebly.com/ |
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6397 Location: Sydney Australia
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Posted: Sat Nov 08, 2014 3:10 pm Post subject: Re: Centerfire 22 long rifle |
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Vince wrote: |
Using a hollow based projectile, as they do with low powered pistol loads, would overcome the sealing problem. A tight neck would grip the projectile reasonably well, hopefully enough for a complete powder burn. The .25ACP case headspaces on the case mouth from memory, so a taper crimp needs to be applied, again ensuring sufficient grip. |
true, but you still have to use steeped projectile to ensure enough of it engaging the rifling.
Otherwise the projectile would bounce along the top of the rifling as it move along the barrel.
_________________ A straight line is the shortest distance between two points.
A smile is the shortest distance between two people.
Do - Not try!
gelandangan.weebly.com/ |
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Nov 08, 2014 4:59 pm Post subject: Re: Centerfire 22 long rifle |
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Shooting buddy told me he bought a brick on sale for $25 last weekend. $25?!?!?!. I had told him I would give him a brick if he needed on. Here is a sale.
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_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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DallanC Site Admin
Joined: Jan 18, 2005 Posts: 3572 Location: Utah
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Posted: Sat Nov 08, 2014 5:23 pm Post subject: Re: Centerfire 22 long rifle |
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gelandangan wrote: |
Hmm 22 shortage, primer shortage and now I also heard of powder shortage..
Odd.. |
Primer shortage is over as far as I can see. 22LR is uncommon but its getting better... powders are very hard to find and have been for a year. I've never found Varget for sale in stores. Loke clued me in to a shipment of H4350 which I picked up 2lbs (enough to last me a year or better). Would love to find Varget, I am down to my last can.
-DallanC
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Vince Site Admin
Joined: May 25, 2005 Posts: 15715 Location: Brisbane AUSTRALIA
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