The Universal Powder.
Like most folks who take up the hobby, I started hand loading a couple of cartridges. As time passed, my hand loading expanded to include a growing number of guns and an ever-increasing amount of powders to feed them. Unique is the one powder that was there from the start and remains close at hand, because it is the most versatile powder on the market for reloading shot shells, handgun cartridges and midrange velocity and reduced-powder loads in rifles cartridges.
The manufacture of Unique has changed hands several times since it was developed in 1899 by Laflin & Rand and manufactured in Haskell, New Jersey. DuPont took over manufacturing at the Haskell plant in 1902. In 1912 the DuPont company was broken up in an antitrust suit, and its double-based powders went to the Hercules Powder Company. In turn, Hercules sold its smokeless powder business to Alliant Techsystems in 1994. The new company, Alliant Powder, moved from the Hercules factory in Kenvil, New Jersey, to the Radford Army Ammunition Plant in Radford, Virginia, where Unique is manufactured today.
Unique is a double-based powder composed of 20 percent nitroglycerine and nitrocellulose. “Nitroglycerine is, in fact, hydrophobic,” said Ben Amonette, Alliant Powder’s product manager, “so it is more resistant to moisture gain or loss than a lower nitroglycerine material or single-base powder. This does not mean that Unique or any of our other double-base products are impervious to moisture; they are just less affected.”
Amonette said Unique’s production process does not coat powder flakes with nitroglycerine, as in the impregnation-type process other manufacturers might use. “Rather, the nitroglycerine is collided with the nitrocellulose base and uniformly mixed with all ingredients except coatings prior to extrusion.”
Denne historien er fra December - January 2017-utgaven av Handloader.
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Denne historien er fra December - January 2017-utgaven av Handloader.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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OEHLER's New System 89 Chronograph
Measuring Bullet Performance Downrange
The Problem with Low Pressure Loads
Bullets & Brass
Measurements for Rifle Handloading
Handy Techniques for Accurate Ammunition
THE BRASS RING
In Range
Semi-custom Bullet Moulds
Mike's Shoot in' Shack
REVISITING THE 6.5 -06 A-SQUARE
Loading New Bullets and Powders
Cimarron Stainless Frontier .45 Colt
From the Hip
9x18mm Makarov
Cartridge Board
Alliant 20/28
Propellant Profiles
.224 Clark
Wildcat Cartridges