Steel Jacket vs Copper Jacket

This is a discussion on Steel Jacket vs Copper Jacket within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; Tulammo is by no means armor piercing but does having a steel jacket rather than a copper/brass jacket offer more penetration via less deformation/jacket shearing ...

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Thread: Steel Jacket vs Copper Jacket

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    Member Array ShootNScoot's Avatar
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    Steel Jacket vs Copper Jacket

    Tulammo is by no means armor piercing but does having a steel jacket rather than a copper/brass jacket offer more penetration via less deformation/jacket shearing through barriers such as wood or metal?

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    The main advantage of steel for fabrication into bullet jackets is in economy. The differences in sheathing components of jacketed lead bullets isn't significant enough to materially affect barrier penetration.

    Scrap Metal Prices | Iron Mike Enterprises

    Steel: $275/ton

    Copper $3.36 lb. (or $6720/ton)
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    VIP Member Array Cuda66's Avatar
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    It's also a very mild steel jacket.

    I doubt it has any effect, and if it does, it is minimal.
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    What the other guys said.

    Its' all about economy and keeping the price point as low as possible. You hit thick steel plate with either one (copper or steel jacketed ammo) and they'll both disintegrate/splatter on impact. Wood, for otherwise identical rounds, you'll get the same amount of penetration from each kind.
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    If you are shooting outdoors, you can start a fire with steel jacketed bullets - not so with copper jacketed.
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    Yup, it's all about price control/saving
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    Senior Member Array taseal's Avatar
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    steel jacket? huh

    you mean steel core? they don't have a steel jacket.

    a steel jacket would really mess up steel rifling...
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    Member Array ShootNScoot's Avatar
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    Quote Originally Posted by taseal View Post
    steel jacket? huh

    you mean steel core? they don't have a steel jacket.

    a steel jacket would really mess up steel rifling...
    Steel is like any other metal. It has varying degree's of hardness.
    What I ask was barrier penetration, does it hold together better it being a different material (different tensile strength) than the more malleable copper or brass.

    I got the answer I wanted here, but I'm a visual learner so I'll have to go shoot some 2x4's and water jugs to see.

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    Quote Originally Posted by taseal View Post
    steel jacket? huh

    you mean steel core? they don't have a steel jacket.

    a steel jacket would really mess up steel rifling...
    No, steel jacket.

    Most people mistakenly believe Tula/Wolf/Bear etc is steel cored.

    It is not.

    And the mild steel jacket usually has a thin gilding metal coating that comes in contact with the bore.

    This is why they are referred to as having a "bimetal" jacket.
    There are no dangerous weapons; there are only dangerous men.--RAH

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    Ex Member Array Ram Rod's Avatar
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    Quote Originally Posted by taseal View Post
    steel jacket? huh

    you mean steel core? they don't have a steel jacket.

    a steel jacket would really mess up steel rifling...
    Yep. I would have picked this one apart immediately.....but you beat me to it. Good thing......keep me out of trouble.

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    Senior Member Array IAm_Not_Lost's Avatar
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    Wolf ammo, Tul exc. has a lead core, and a steel jacketed bullet, with a .005 inch copper washed coating over the top. Wolf, nor Tul will harm any guns. They won't harm the extractor, they won't harm the rifling.

    To try and answer the OP's question: I don't believe the steel jacket helps with any sort of barrier penetration, too mild. I shoot quite a bit of the stuff at all sorts of interesting desert targets and honestly it looks just like a normal lead/copper bullet when you pull them out of objects or find them in the backstop. The steel jacket does present a fire risk at ranges, though I can't confirm this as I am not usually a range goer.
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    Senior Member Array taseal's Avatar
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    interesting stuff...

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    Quote Originally Posted by IAm_Not_Lost View Post
    Wolf ammo, Tul exc. has a lead core, and a steel jacketed bullet, with a .005 inch copper washed coating over the top. Wolf, nor Tul will harm any guns. They won't harm the extractor, they won't harm the rifling.

    To try and answer the OP's question: I don't believe the steel jacket helps with any sort of barrier penetration, too mild. I shoot quite a bit of the stuff at all sorts of interesting desert targets and honestly it looks just like a normal lead/copper bullet when you pull them out of objects or find them in the backstop. The steel jacket does present a fire risk at ranges, though I can't confirm this as I am not usually a range goer.
    I am curious as to the reason that steel jacketed ammo supposidly is a fire hazard?

    I have shot quite a bit of tula and wolf out of my AK but never heard about a fire hazard before. Is it because the steel striking a metal target might cause a spark?

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    VIP Member Array Cuda66's Avatar
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    Quote Originally Posted by Ram Rod View Post
    Yep. I would have picked this one apart immediately.....but you beat me to it. Good thing......keep me out of trouble.
    Nope.

    Lead core, mild steel jacket with a thin copper outer layer.

    Back in the 80s and early 90s there was some 7.62x39 that Norinco imported that was steel cased and also had a steel core...unfortunately, that made a lot of people assume that ALL steel cased ammo has a steel core...which just isn't true anymore.

    http://tulammousa.com/products/cente...idges/45-auto/

    Says lead core on their website.
    There are no dangerous weapons; there are only dangerous men.--RAH

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    There is a reason they try and make small bullets act like big bullets--Glockmann10mm

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    Quote Originally Posted by TedBeau View Post
    I am curious as to the reason that steel jacketed ammo supposidly is a fire hazard? I have shot quite a bit of tula and wolf out of my AK but never heard about a fire hazard before. Is it because the steel striking a metal target might cause a spark?
    Big time! Try night shooting and see. Here in the Sierras that is a big risk, the gravel quarry i use nearby has no dry grass in it.
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