August 7th, 2017

Fascinating Facts from Norma’s Ammo Academy

Norma web site Ammo Academy

If you haven’t visited the Norma website recently, you should click over to www.norma.cc/us. There you will find Norma’s Ammo Academy, a technical resource that provides information on Ballistics, Powder Storage, Barrel Wear, and Bullet Expansion. In addition, the Ammo Academy now links to Norma’s Reloading Data Center, where you’ll find loads for nearly 70 cartridge types including: .223 Rem, .22-250, 6mmBR Norma, 6XC, 260 Rem, 6.5-284, 6.5×55, 7mm-08, .270 Win, .284 Win, .308 Win, .30-06, 300 Win Mag, .338 Lapua Mag and dozens more.

The Ammo Academy’s Ballistics section contains some fascinating technical facts:

stopwatch

  • After the trigger is pulled, it takes around 0.005 seconds before the firing pin reaches the primer.
  • From the firing of the primer it takes 0.0015-0.002 seconds until the bullet exits the muzzle.
  • When the bullet leaves the muzzle, the hot gases surround and overtake the bullet, continuing the acceleration for a few centimeters.
  • Because the barrel is always angled slightly upwards, the bullet’s flight starts about 3-5 cm below the line of sight.

Norma also offers some good advice about Powder Storage:

To maintain the product quality for as long as possible, you have to keep the powder in a suitable place under suitable conditions. Where possible, store the powder at a constant temperature, ideally between 12 and 15°C (54°F to 59°F), and a relative humidity of 40–50%. If the air is too dry, it will dry out the powder, which will cause the pressure to be higher, thus affecting performance. Also make sure that you close the powder container properly afterwards. Cartridges should be stored under the same ambient conditions to maintain their quality.

Norma web site Ammo Academy

Permalink Bullets, Brass, Ammo, Tech Tip 4 Comments »
June 6th, 2015

Powder Storage Q & A — What Are Signs of Problems?

Western Powders Blog SAAMI Storage

Western Powders (vendors of Accurate, Norma, and Ramshot powders), publishes a Blog that covers all aspects of hand-loading and rifle maintenance. Recently the Western Powders Blog published a Q & A series entitled Dear Labby: Questions for our Ballistics Lab. Here are some excerpts that pertain to powder storage and shelf life. Worried that your powder may be too old? Western’s experts explain how to check your propellants for warning signs.

Proper Powder Storage

Q: I live in southern Arizona where it is very hot. I am told powders will become unstable if stored in an area not air-conditioned. My wife says no powder or primers in the house. Can powder be stored in a refrigerator? What about using a fireproof safe? I would appreciate your ideas. — M.C.

Lab Answer: SAAMI guidelines are pretty clear on issues of storage. They recommend storing smokeless powder in containers that will not allow pressure to build if the powder is ignited — ruling out gun safes and refrigerators.

CLICK HERE to Read SAAMI Guidelines for Powder Storage (PDF)

(more…)

Permalink Reloading, Tech Tip No Comments »
September 26th, 2014

Norma’s “Ammo Academy” Provides Valuable Information

If you haven’t visited the Norma website recently, you should click over to www.norma.cc/en/ (the ‘en’ is for English version). There you will find Norma’s “Ammo Academy”, a technical resource that provides information on: Ballistics, Powder Storage, Barrel Wear, and Bullet Expansion. In addition, the Ammo Academy now links to Norma’s Reloading Data Center, where you’ll find loads for nearly 70 cartridge types including: .223 Rem, .22-250, 6mmBR Norma, 6XC, 260 Rem, 6.5-284, 6.5×55, 7mm-08, .270 Win, .284 Win, .308 Win, .30-06, 300 Win Mag, .338 Lapua Mag and dozens more.

Norma web site Ammo Academy

The Ammo Academy’s Ballistics section contains some fascinating technical facts:

stopwatch

  • After the trigger is pulled, it takes around 0.005 seconds before the firing pin reaches the primer.
  • From the firing of the primer it takes 0.0015-0.002 seconds until the bullet exits the muzzle.
  • When the bullet leaves the muzzle, the hot gases surround and overtake the bullet, continuing the acceleration for a few centimeters.
  • Because the barrel is always angled slightly upwards, the bullet’s flight starts about 3-5 cm below the line of sight.

Norma also offers some good advice about Powder and Cartridge Storage:

To maintain the product quality for as long as possible, you have to keep the powder in a suitable place under suitable conditions. Where possible, store the powder at a constant temperature, ideally between 12 and 15°C (54°F to 59°F), and a relative humidity of 40–50%. If the air is too dry, it will dry out the powder, which will cause the pressure to be higher, thus affecting performance. Also make sure that you close the powder container properly afterwards. Cartridges should be stored under the same ambient conditions to maintain their quality.

For more info on Norma products, CLICK HERE to access Norma’s Catalog Download Page.

Story Tip by EdLongrange. We welcome submissions from our readers.
Permalink Bullets, Brass, Ammo, Reloading No Comments »
July 1st, 2011

Norma Adds ‘Ammo Academy’ Resource to Website

Norma has updated and enhanced its website at www.norma.cc/en/ (the ‘en’ is for English version). Among the many new site features is Norma’s “Ammo Academy”, a technical resource that provides information on: Ballistics, Powder Storage, Barrel Wear, and Bullet Expansion. In addition, the Ammo Academy now links to Norma’s Reloading Data Center, where you’ll find loads for nearly 70 cartridge types including: .223 Rem, .22-250, 6mmBR Norma, 6XC, 260 Rem, 6.5-284, 6.5×55, 7mm-08, .270 Win, .284 Win, .308 Win, .30-06, 300 Win Mag, .338 Lapua Mag and dozens more.

Norma web site Ammo Academy

The Ammo Academy’s Ballistics section contains some fascinating technical facts:

stopwatch

  • After the trigger is pulled, it takes around 0.005 seconds before the firing pin reaches the primer.
  • From the firing of the primer it takes 0.0015-0.002 seconds until the bullet exits the muzzle.
  • When the bullet leaves the muzzle, the hot gases surround and overtake the bullet, continuing the acceleration for a few centimeters.
  • Because the barrel is always angled slightly upwards, the bullet’s flight starts about 3-5 cm below the line of sight.

Norma also offers some good advice about Powder and Cartridge Storage:

To maintain the product quality for as long as possible, you have to keep the powder in a suitable place under suitable conditions. Where possible, store the powder at a constant temperature, ideally between 12 and 15°C (54°F to 59°F), and a relative humidity of 40–50%. If the air is too dry, it will dry out the powder, which will cause the pressure to be higher, thus affecting performance. Also make sure that you close the powder container properly afterwards. Cartridges should be stored under the same ambient conditions to maintain their quality.

For more info on Norma products, CLICK HERE to access Norma’s Catalog Download Page.

Story Tip by EdLongrange. We welcome submissions from our readers.
Permalink Bullets, Brass, Ammo, Reloading No Comments »