Sunday, September 23, 2012

Del-Ton Extreme Duty Torture Test, Part One

Earlier this year, Del-Ton introduced the DTI Extreme Duty Rifle.  This weapon was designed with hard, duty-type use in mind and is assembled with premium, mil-spec parts.  One key component of this weapon is the Fabrique Nationale (FN), HPT/MPI, chrome lined 4150 CMV 1X7 twist barrel.  Apart from this feature, it is fairly identical to other rifles in the Del-Ton product line. All DTI rifles (except the DT Sport) include an HPT/ MPI bolt, and all but the DT Sport have CMV barrels.
DTI chose to use the next few blog posts to detail some "testing" we did on our Extreme Duty Rifle.  First, some "legal" considerations we must state: these activities should never be done by DTI owners and can result in dangerous or deadly malfunctions.  Purposeful abuse of this nature would void the lifetime warranty on your DTI rifle. 
This initial post will detail some fairly abusive function-related testing.  It all began with test firing.  This exact weapon showed "sub-moa" accuracy when it was featured in a recent magazine publication, so we decided to focus on "quantity" of rounds fired first. While the exact number of rounds fired by the author of the article is unknown, it was likely over 100 (if we include the test firing done at the factory, before it was sent to the author). 

Without cleaning, 300 additional rounds of TulAmmo, steel cased ammunition was sent downrange. Though quality ammunition is in short supply and at a high price point now, I would not normally have any desire to use steel cased ammo...especially that which is not domestically produced.  The steel case does not expand like a brass case does in the chamber and it can allow more fouling to make its way back into the upper and bolt and carrier assembly.  Was there a lot of fouling in the weapon?  Yes.  It was not "clean" to the standards in which I prefer to keep my weapon ready to go after each shooting session.  Were there malfunctions of any kind?  None at all.  A new, aluminum, domestically produced magazine with a green follower was used for the entire test period.  But now it was time to do something that caused me more than a little nausea...                    

"Clean" Weapon Before Test
Upper Buried-Ejection Port Cover OPEN!
Most Sand Removed Only From "Shaking"
Del-Ton is located in SE North Carolina near Fort Bragg, in an area known as the "Coastal Plain".  At one point, this area was under oceanic water and it has a VERY sandy topsoil.  I dug a "M4-length depression" about three inches deep in this sand and then proceeded to drop 3 shovel-fulls of moist sand over the receiver...ejection port cover open. I was careful to not allow any material to enter the muzzle or bore.  After lifting the rifle out of the sand, I simply gave it a couple of shakes to remove the packed sand from the ejection port area and immediately fired the round in the chamber and the subsequent four rounds left in the magazine. 

I wondered if this was really "enough" or proved anything, so I removed the upper assembly from the lower, and removed the bolt and carrier assembly for inspection.  There were sand particles inside the barrel extension, between the bolt and the carrier, between the cam pin and the carrier, in the upper, and inside the forward assist area.  Indeed, sand made its way into the action even from the small amount placed on the receiver. The weapon functioned without a problem.  No "real" cleaning was done-the sand was removed via compressed air, and an additional 10 rounds were fired after reassembly.  Extreme Duty Torture Test, Part One...Pass.
In our next post we will drop, throw, slide, generally abuse, and continue to fire the same ammunition through the weapon without cleaning. So, STAY TUNED! Thanks for reading our blog. If you have any questions about DTI rifles and parts, please feel free to contact us.



  1. BOOM. Story's over. Yet, for most of us, events seldom transpire this way. Hours, days, and even seasons worth of seemingly "perfect" set-ups may go by without the epic crescendo of a successful harvest. Our hunt in Sonora, eshunting