Double-tap duplex ammo


May 13, 2013, 01:54 AM
Has anyone tried this stuff? Basically defensive ammo loaded with two bullets per cartridge, a smaller lead one behind a more regular JHP bullet.

IIRC, the army experimented with this idea back in the 70s, duplex ammo for the M-16. The idea is, two bullets are better than one.

Double-Tap are my almost-home boys, and I want to back them up whenever possible. But I'm wondering, if this was such a great idea, wouldn't someone have done it a long time ago? Or did DT come up with the perfect flubber gas to make it work?

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May 13, 2013, 03:49 AM
This sounds like a solution looking for a problem to me. Why can't you just pull the trigger again to get a second round to the target?

For that matter I can't imagine accuracy being anything more than terrible.

May 13, 2013, 09:24 AM
Many years ago, I worked up a load that was a couple of round lead balls (one large to grab the rifling and one smaller) in 45 ACP. This was sometime around 1975-1980. I see the idea is still out there and now at a "premium" price.

My 45 ACP lead ball ammunition functioned just fine in my 1911. The problem was once you got past about ten feet you had a badly patterning, low pellet count shotgun. A smooth bore may have helped that situation but I'll never know.

The thing is if you're looking for two bullets to go into the same hole what's the advantage? If you're looking for two holes, that would seem to me to lower the effectiveness of each projectile. It sure did in my 45ACP pellet gun.

Looks too "gimmicky" to me to be a serious defense round.

hariph creek
May 13, 2013, 12:17 PM
I'd hate to go to court (as a defendant in a justified SD shoot) with these.
Seems like a over-zealous DA's dream.

Pretty nifty, other than that.

May 13, 2013, 03:12 PM
Sounds like Corbon Pow'R'Ball to me, or at least something close to it.
A good idea, and there might be some potential uses for it, but I'd just assume have all my grain weight in one projectile.

Edit: Nope, not Pow'r'Ball. Looking now to see which other manufacturer it was that did something similar...

Second edit: Joke's on me. Turns out it was actually Double Tap that I'd read about doing it. Though the 10mm loads are where I first heard about it: 135gr JHP followed by 95gr lead ball

May 13, 2013, 04:08 PM
I know the Taurus Judge has a problem with flattening buckshot. I would imagine the same issue would occur here, in that the pellet would tend to want to flatten and deform against the JHP, and consequently the JHP would be deformed as well. You can already see the pellet flattened at the bottom in the above picture, and creating and indent in the JHP seated on it.
Not to mention, if I'm accountable in a court of law for the placement of each and every projectile that leaves my firearm, I want them to go where I want them, so I don't like the idea of an undersize projectile.

May 13, 2013, 05:41 PM
Has anyone actually used the suckers?

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