Thompson .45 carbine

Auto Ordnance M1927 lightweight model, shown with Lyman sight on 300 yard setting

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8 Responses to Thompson .45 carbine

  1. Tony Lekas says:

    Isn’t that sight over optimistic? Did Thompson’s come with it. I have not calculated the ballistics for it but how effective is a .45 going to be at 300 yards? A .45 bullet must not have a great ballistic coefficient. And that sight has a lot more upward travel.

  2. Ryan says:

    Tony, a LOT of sighting arrangemnts were somewhat optimistic. Ever look at the backsights of Broomhandle Mausers and Browning Hi Powers?

  3. Lyle says:

    Speer lists its 230 gr .451″ TMJ as having a BC of .195 in manual #12. Assuming a conservative MV of 1,000 fps, that leaves the 300 yard velocity at 720 fps with 265 ft/lbs KE. I’ve seen man-sized target hit at that distance with a pistol. With the carbine I wouldn’t say 300 is overly optimistic, and there’s enough energy there to kill. Certainly it makes decent suppressive fire at that distance, for those times when your wife is busy maneuvering for a shot with her 300 magnum and you don’t want the enemy to notice her.

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  5. Kyle says:

    Ok, don’t misunderstand me, I have a great deal of respect for this system. However, it just feels so awkward from a length of pull and stock angle standpoint. Am I the only one?

    • Oleg Volk says:

      Thompson was 6’7″ tall. He made the gun fit his own size. It works better for tall people…but I also know a 5’4″ lady who keeps one as a house gun.

      • Kyle says:

        Wow, I had no idea he was that tall. I think with me, it’s just a preference of feel/ergonomic thing. I’m 5’10”, but it just feels like I’m holding the thing so far away from my body when shouldering. Also, the butt of the stock is a bit low in relation to the sights.
        Your friend that is 5’4″ is definitely not in the wrong if she feels comfortable with it. It’s just not to that level of comfort with me to say an AR15 with an adjustable stock.

    • RealityCzech says:

      The Thompson works much, much better when shooting bladed to the target, instead of squared.

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