Ed Johnson

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About Ed Johnson

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  • Birthday 05/16/1940

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  1. Alasdair, yes I understood it used to be Shotgun News. Used that one back in the '60's for obtaining M1 Carbine parts for the 5.7mm Spitfires. Have jst ordered a subscription but it might not include the above issue. If I can't get a copy, I'll get back to you. I'll pay for any copying you might need to do. ej
  2. Alasdair, what does the front cover of the magazine look like? Does it have Kavarri .338 Lapua? I'm trying to buy the magazine and I'm not sure of the issue. Ed J
  3. Here's a quickie from Wikopedia as a reference point. Still wondering about a weaker mainspring, Tanker. See what you think. ej Gas operated and blowback firearms Blank Firing Adapter attached to an M16/M203 BFAs for blowback and gas-operated firearms are relatively simple. These weapons depend on high pressures in the chamber generated by the combustion of the propellant to push the breech block to the rear, allowing another round to be chambered and fired. If a blank round is used, there is no bullet to seal the barrel, and the combustion gases exit through the muzzle without building up enough pressure to rechamber the next round.[3] Simple BFAs for these firearms consist of a metal plug with screw threads. The adapter is attached to the muzzle of the firearm, and may attach to or replace the muzzle brake if there is one. A means is provided to allow some of the powder gases to escape. This can be adjustable, allowing it to regulate the amount of pressure used to rechamber the next round.[2] A drawback to the use of BFAs in gas-operated firearms is the amount of powder residue that builds up in the barrel. Since a limited amount can escape (compared to when live ammunition is in use), and the barrel can foul very quickly. Extreme care must be taken to ensure cleanliness of the barrel following BFA use to avoid damage to the weapon and injury to the operator due to fouling in the barrel.[2] Recoil operated firearms Drawings from US patent 4,128,040, for a blank firing adapter for the short recoil operated M2 Browning machine gun. Since blank cartridges generate very little recoil, far less than that produced by a live round, the recoil operation mechanism is not suitable for use with blanks. BFAs used with recoil operated firearms typically replace the locked breech of a recoil operated firearm with a simple blowback system using a restricted barrel, similar to a gas operated BFA. Short recoil operated pistols, the most common type used for self-defense and by police, are typically converted with a simple barrel replacement; the replacement barrel will lack the locking lugs to lock the slide to the frame, and will be built with an adjustable restrictor to control the chamber pressure. On designs with tilting barrels (again, the majority of modern designs are like this) there may also be a provision for tilting the barrel back, simulating the unlocking of the slide — this is visible in US Patent 5,585,589 listed below. One notable exception to the design of BFAs for recoil operated firearms is machine guns based on short recoil designs, such as the German MG 34 and its descendants. These designs use a muzzle booster to add energy to the recoiling parts, and muzzle brakes for these designs simply replace the muzzle booster with one that provides far more boost with blank cartridges. The M2 heavy machine gun, while it does not use a muzzle booster normally, can use a similar muzzle-booster-derived BFA.
  4. Have not heard of this, which doesn't mean someone hasn't done it. The problem would be lack of pressure to function the recoil action. Conceivably,as a starting point, a weak mainspring comes to mind. I know it has been done with Garands, but they are gas operated, not recoil. I'll be interested if you find someone who has actually done it successfully. ej
  5. A friend posted from Groton Vermont claiming - 10 degrees earlier.....its a balmy plus 15 degrees in Groton, CT.....time for my sun bath.....
  6. U 2, Art.....and best to all Johnson Website users out there from the Johnson family. This has been a difficult year for some of us. Let's hope 2018 is quieter. ej
  7. Theoretically, it might, depending on how much weight is involved. Do you know the total weight of each barrel?
  8. If the clips are good enough to justify my purchasing the program itself, for something like a $35 donation, let me know. thanks for the tip. ej
  9. And our website manager has a "permanent" listing set at the beginning of this section concerning the serial numbers.
  10. M1941 Johnson Rifle serial number 1534 details request.

     

    Hello Ed,

     

    If possible would you advise if there is information available on this rifle and if it can be shared via email rather than posted on the forum?

     

    Thanks for your time and assistance.

     

    Ed Hicks

    edhicks82@aol.com

    M1941 Johnson Rifle (26).jpg

  11. I agree with Brian above on all comments. Also, sad to say, I am not a big "fan" of RIA but that's life. ej
  12. serial number?
  13. From a technical standpoint, any type of muzzle brake device, including the one Dad sold after WWII (refer to the Johnson book) for reducing recoil on hi-power bolt-action rifles, might possibly affect the cycling operation of a Johnson semi-auto rifle, which is recoil operated (Same might apply to the Johnson LMG). So Brian (above) makes a good suggestion and, yes, most folks wouldn't notice the difference....including me....unless I was looking for it specifically.
  14. High near 0. You have strange weather in VT.
  15. There WAS a lot of Johnson in the AR.....a large book came out recently titled "The Armalite AR-10" by Collector Grade Publications of Canada which includes considerable detail on Dad's involvement, along with some early background comments by myself. As everyone should know by now, the AR-10 was the "grandfather" of the later AR-15 / M - 16 series.