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Type: Posts; User: OlManDow; Excluded Forums: Milsurp Knowledge Libraries (READ ONLY)

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    Rock Island Armory M1917 Barrel

    Can anyone tell me the story behind my RIA marked M1917 barrel? I have seen nothing in print about Rock Island making barrels for the M1917, but I have one, clearly marked behind the front sight...
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    18,337

    GI headpace gauges have a notch to clear the...

    GI headpace gauges have a notch to clear the ejector, so no disassembly is necessary. Manson Engineering made me several sets to GI specs. Beats disassembling the bolt.
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    We have been using it in our shop for about ten...

    We have been using it in our shop for about ten years now. We don't use it to clean, only as a protective oil after cleaning. It is mildly alkaline, so it will slowly gnaw away at any copper...
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    If you find 'em and tool up to do it right. I...

    If you find 'em and tool up to do it right. I would be interested. I am currently making one from a Krieger blank, and cutting the splines for the front sight and bayonet lug on a one-off are a...
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    Be aware that repro's are being made. They have...

    Be aware that repro's are being made. They have the open arrows like original Winchester items, and the edges of the knobs are squared, not rounded. Numrich carries the repro's, and they are honest...
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    Have owned and fired several, own one currently. ...

    Have owned and fired several, own one currently. If you haven't already purchased the rifle, examine the rear of the chamber carefully before purchasing. A large number of these were used with...
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    Good and thorough posts already. Note that the...

    Good and thorough posts already. Note that the M1917 bolt moves forward several thousandths of an inch when rotating it closed, due to the slanted locking recesses and bolt lugs. Headspace is...
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    There is a crosspin on the bottom, near the...

    There is a crosspin on the bottom, near the front, which can be hard to see, as it is ground flush before parkerizing over it. There is no solder. There is also a lengthwise pin between the barrel...
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    I dabbled in this a few years back when my first...

    I dabbled in this a few years back when my first supplier went out of business, and gave up. I did find that the commercial solutions use some catalysts, notably nickel acetate, which is expensive...
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    Good info in the other posts. I also made my own...

    Good info in the other posts. I also made my own barrel vice and blocks - the commercial ones are toys in comparison. I make my blocks out of 2x2x1" 1020 steel, bored in the lathe to fit the...
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    See the other posts about getting the barrel in...

    See the other posts about getting the barrel in properly indexed. We use some special gauges and tools to do the job right, It is hard to get it right without them. My contribution is to mention...
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    We do a lot of these in our shop; two just last...

    We do a lot of these in our shop; two just last week, converting M1903A3 demils to .22lR. If you have a good lathe, you can buy the short piloted drill from Bbrownells and silver braze on an...
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    I am near Dade City, which is a bit of a drive...

    I am near Dade City, which is a bit of a drive from the panhandle, but I can do it for you - while you wait. UPS is probably cheaper than driving down, and is one-day anywhere in Florida.
    ...
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    You are going to laugh at this 'Bubba' solution! ...

    You are going to laugh at this 'Bubba' solution! Needless to say, you have to have a gauge or the eye to tell when and if you got it straight. I place the barrel on the ground (not pavement!) with...
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    M73 Telescope Sight for M1903A4 and M1C

    Don't know where else to post this, so please forgive if this isn't the most appropriate forum. Has anyone seen a Lyman Alaskan 'scope actually marked 'M73'? The M73 designation was approved for...
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    L:oose rear sight

    You were on the right track tightening up the tension screw in the windage knob, and the advice on the cover is right on. Due to manufacturing tolerances, there can still be quite a bit of lateral...
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    Battery acid

    The originals can be found, still dry, with the original casel. I think I have one or two in my shop.

    If you get an original, be aware that back in the day of 6 volt batteries, the battery acid...
  18. Thread: Trigger work?

    by OlManDow
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    Late parts?

    I trust that you have the late-style parts already installed? The early '20-coil' spring, sear with no hole, and 'dog-leg' hammer had an atrocious triger pull. You should be working with the...
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    Looks like the nibs have the discoloration and...

    Looks like the nibs have the discoloration and deformation associated with the flame-hardening operation - the early mags have a simple cutout with no surrounding oval from the flame hardening that...
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    I have had a few that wouldn't cycle where the...

    I have had a few that wouldn't cycle where the problem turned out to be a very worn gas tube. I found an amazing range of inside diameters in my spare gas tubes, and replacing the problematic one...
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    I am betting you have a 7mm instead of 30'06? ...

    I am betting you have a 7mm instead of 30'06?

    OlManDow
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    I use 25 grains of SR4759. It is a bulky powder...

    I use 25 grains of SR4759. It is a bulky powder and lights well whether the powder is in the front or rear of the case when the primer goes off. No wad or filler required, so there is no danger of...
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    I have a complete original stock. You're on...

    I have a complete original stock. You're on your own for handguards.

    OlManDow
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    That body diameter really is correct. You can...

    That body diameter really is correct. You can make usable Lee ammo by turning the rim of 220 Swift ammo to .443 and just necking it up to 6mm. It will be a bit short, but works fine. You will...
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    Compliance Parts

    I thought I recalled seeing U.S. marked magazine followers and also U.S. marked charging handles for the L1A1. No one seems to have them now. Am I imagining things, or have they disappeared form...
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