Lapua 4PH8031 – Lapua 8×57 JRS Brass


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Lapua 4PH8031 – Lapua 8×57 IRS Brass

100ct Box

Lapua 4PH8031 – Lapua 8×57 IRS Brass is world class.  Brass production begins with high quality raw materials.  Lapua’s focus on quality control is consistent with their exacting standards.  Furthermore, all Lapua 8×57 IRS brass is tested to 30% over pressure.  This is confirmed by the Commission Internationale Permanente.  The same agency that oversees ammunition and component producers in Western Europe.  Therefore, Lapua Brass is ranked as the best of the best.  Hence it is preferred by many precision shooters worldwide.  All Lapua 8×57 IRS brass has factory annealing which extends the life of the cartridge.  As a result of this process, the neck portion of the brass may be discolored until the cases is cleaned.  Always resize new brass before loading.  Most importantly, this is not loaded ammunition.

Technical Information

  • Manufacturer:  Nammo Lapua
  • Caliber: 8×57 IRS
  • Finish: Brass, Annealed
  • Mfr Part: LU4PH8031 | Lapua 4PH8031

Another great feature about Lapua brass is the factory packaging doubling as an instant ammo box The 100 count Lapua factory brass box transforms into a 50 round ammo box.  Inside the box on the lid is a grid that contains holes for 50 loaded rounds of ammunition or empty brass.  To convert the factory box into an ammo box, simply lay the grid across the supports inside the box.  Now the shooter does not have to worry about cases rolling off the bench.  Also, this box organizes rounds during load development.

Lastly, Nammo Lapua acquired Berger Bullets.  Please visit our Berger Bullet page if you are serious about getting the most out of your precision shooting.  Also, We have a great selection of  projectiles.  Come check out the Hornady and Nosler lineup in this caliber as well as other calibers.  If we do not have it in stock, please just ask.


Weight 38 oz
Dimensions 6.5 × 4 × 3 in



8×57 IRS



Component Type


Brass Type

New Brass

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