CorBon DPX Ammunition : Current State of Affairs : UPDATE

By John Farnam

CorBon DPX Ammunition
CorBon DPX Ammunition
Defense Training International, Inc
Defense Training International, Inc

Ft Collins, CO –-( Update from CorBon DPX Ammunition:

Peter Pi, CEO of CorBon, and my friend, knows only too well about the frustration of his many loyal customers in trying to find CorBon DPX ammunition.

Pete is an ammunition company CEO who is, himself, a genuine Operator!

Here is what he told me today:

“It’s great your students are inquiring. It gives me a chance to set the record straight and quench the rumor mill.

I started CorBon Ammunition back in Detroit, MI in 1982 and years later moved the business to our new facility in Sturgis, SD , where it is now.

The Pi family has owned CorBon since it’s inception, and still owns 100% of the company, thirty-five years later. Unfortunately, competitors and detractors sometimes start destructive rumors. Goes with the territory!

The problem with our famous DPX line of ammunition is a classic example of the big company trying to crush a smaller one.

Remington bought Barnes Bullets. Barnes was our supplier of DPX bullets, made to our specifications. In fact, I worked with them on the design and testing of the product. Without warning, they cancelled our contract, saying, ‘We will no longer sell you bullets.

Remington/Barnes intended to manufacture a competing DPX line of ammunition and obviously preferred not to have us competing with them.

This left us with a couple of choices.

  • Either find another vendor
  • or make DPX bullets in-house.

After months of working with several alternative vendors, we reluctantly realized that, if we were going to market superior DPX ammunition, worthy of our name and that out-performed all others, we would have to make it ourselves!

I had no idea when we started the project that it would take this long, and use up all the resources the company had, and then some! But, I refused to compromise and refused to put out a product to my loyal customers, unless it was the best on the market.

It’s been a long, rocky, and expensive road, but we are now very close to being able to, once again, produce DPX ammunition that I’m proud of, and a product that my customers can stake their lives on!

We currently have orders for several million rounds of DPX. We will begin filling orders sometime in December of 2017, and will fill them from the oldest to the newest. We have lots of customers who have been patiently waiting, and they will be rewarded for their loyalty.

It will take us a while to get caught up, but we will get there.

We do plan on bringing back the DPX 30 Carbine round eventually, but right now we have to concentrate on CorBon DPX ammunition in pistol calibers, as you can imagine.”

So, that is the latest.

I’ve always been happy to recommend CorBon ammunition for serious purposes. Because of Pete’s personal devotion to excellence, I’ve no doubt CorBon ammunition will continue to be the first choice of Operators worldwide!


About John Farnam & Defense Training International, Inc
As a defensive weapons and tactics instructor John Farnam will urge you, based on your own beliefs, to make up your mind in advance as to what you would do when faced with an imminent and unlawful lethal threat. You should, of course, also decide what preparations you should make in advance, if any. Defense Training International wants to make sure that their students fully understand the physical, legal, psychological, and societal consequences of their actions or inactions.

It is our duty to make you aware of certain unpleasant physical realities intrinsic to the Planet Earth. Mr Farnam is happy to be your counselor and advisor. Visit:

  • 15 thoughts on “CorBon DPX Ammunition : Current State of Affairs : UPDATE

    1. Bullets spinning in the casing and or falling out of the spaces is nothing new. We have people who contact us and tell us that’s they load and unload their defensive firearm every day! Any and all of the major manufacturers will tell you that a round of ammunition should only be loaded from the magazine into the chamber a maximum of two times to maintain the integrity of the case/bullet fit and crimp. Repeatedly reloading a round into the chamber from the magazine is the culprit in most of these types of cases. Ammunition is like any other product out there, use it the way it is supposed to be used and it will serve you well.

    2. Reality: the history of ammunition is a history of corporate canibalism. This short history of shotshell manufacturers can give some idea of how this works:

      More recently the Active shotshell shotshell company was effectively locked out of the market when one of the oldest manufacturers of ammunition in the U.S. threatened to withdraw its product line from any distributer that carried the Active shotshell line.

    3. When Remington bought Para out they promised they would be incorporating the hi cap 1911 into the Remington line.

      That was in 2012.

      During the summer I emailed Remington as to when they would be offering the high cap Pera designs in the Remington 1911 line, and three weeks after I sent my query, some broad from Remington replied: it was not going to happen.

      Ever, she said!

      Remington is run by a bunch of lying sacks of bovine fecal matter!

      I refuse to buy any Remington product.

      Supporting a line bunch of scum, who are ruining, literally ruining, some really great lines of quality products, or what used to be quality products, is utterly reprehensible.

      The only message that Remington is going to get, is if we stop supplying their bottom line!

      Boycott Remington!

      1. @JR Yeah, Remington is all about the manufacturing process and profit. The last well made Remington design was a CC Loomis design back in 1940.

    4. That’s capitalism. Like it or not that’s the way it works. Either take it the way it is or get the gubment involved and expand their list of regulations. Pick your poison.

    5. Have they gotten the bullets to stop falling out of the casings yet?

      Back in about 2010, my friend/co-instructor and I each bought into the DPX thing because we had been led to believe the bullet design was really great, which it probably was. He had 9mm and I had .45, both CorBon DPX. We both carried them for a couple months (definitely less than a year) until one of us noticed that one of our carry rounds had a bullet that would rotate freely in the case.

      We both checked all our carry ammo and found that over half of the bullets would rotate freely in the brass with a very light twist – no resistance at all on many of them. About 10-20% of the bullets coukd be simply plucked from the brass with your fingers. One of my .45 rounds actually came apart when coming out of the chamber – the brass went one way, the bullet went the other way, and power went all over.

      We of course immediately stopped carrying them. I reported the issue to the manufacturer and I believe they kindly replaced my box of ammo, but I wasn’t about to start carrying them again.

      1. I have seen 9mm JHP rounds have their bullets become loose to the point I was able to remove the bullets with just my fingers. This came about because people were removing and replacing the rounds in the Ruger KP89 magazines to count the rounds. How many times it took to get this way I don’t know. The problem was the guide ribs inside the magazine were right where the base of the bullet was in the case. The rib applied pressure to the case and worked the bullets loose. Strange but true.

    6. Remington is going down the tubes. They have ruined the Marlin line of rifles with the move to NY. Very disappointed with Remington. Now they want to crush the competition. I for one have stoped buying Remington products. I will wait for CorBon to start selling.

      1. @James Peterson, I used to shoot NRA small bore silhouette against a guy that had a modern Marlin model 39 (39c or 39a or …something). I used my Marlin Model 39 made in 1937, I believe. The older Marlin model 39 just walked away from the new production Marlin. What the heck is micro-groove technology, anyway?

        1. Marlin has used MicroGroove rifling since at least the 1970s. It’s the same as “button rifling”.

          I agree that remington has ruined the new “rRmlins”. Their quality control was horrible at first, and is still questionable as of now.

        2. Most barrels are rifled with 4 to 7 grooves using a cutter or a “button”. The cutter does one groove at a time. It is like a single tooth on a chain saw. The button rifling was invented just during or after WWII to speed up the process and a very hard tungsten button is pulled through theb drilled and polished barre blank and the grooves are just ironed into the bore. It is fast, since all grooves are done in one pass.
          Microgroove uses something like 16 shallow grooves so the bullet is deformed less.
          But teh barrel needs to be kept clean of lead.

    7. I guess this means that Barnes Bullets will be going in the toilet like the other Remington acquisitions.

      1. @Roy D, Yeah, like Para-Ordnance pistol designs. Remington bought Para so that Remington’s crappy pistol designs would not have to compete with Para’s really good designs. Owen Wilson is the CEO of Remington.

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