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Lapua Brass Unprimed 8 X 57 IRS 100/Box


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Lapua’s 8×57 IRS case for double rifles, drillings and vierlings

The 8 X 57 IRS case is the Lapua standard for breech brake combination guns like double rifles, drillings and vierlings. The 8 x 57 IRS is a rimmed sporting and hunting version of the German 8 x 57 IS military cartridge (also known as the 7.92×57mm Mauser). 

No matter what kind of game you are aiming at, the quality of this brass will not be the one to blame if you miss. The 8x57IRS case can withstand tens of reloading cycles, another proof of Lapua´s incredible brass quality.

Lapua cases – the top brass choice for demanding reloaders

The base, body and neck of Lapua brass have been designed to maintain exact tolerances over multiple reloading cycles. Advanced metallurgical research and manufacturing techniques ensure that Lapua cases are leaders in uniformity and quality.

All Lapua cartridge cases are strong and uniformly precise. Lapua brass is manufactured to be reloaded, again and again. For reloaders who require absolute reliability from their ammunition, Lapua’s pistol and rifle cartridge components is the answer. Lapua cases are the best in the world, a statement supported by all top marksmen.

The base of the case
The Lapua case heads are drawn exceptionally hard for unmatched reloadability and for an exceptionally long-life cycle to serve top shooters time and time again. The brass dimensions remain constant and will hold primers tight in their pockets even after the case has been reloaded many times.

The brass body
The brass body section of Lapua cases is hard and resilient for unmatched durability. It is easy to extract after firing, whether the reloader opts for full sizing or neck sizing only.

The case neck
Strict tolerances in concentricity and wall thickness are used in the manufacturing of the case neck. The neck and shoulder of Lapua cases are annealed to withstand repeated reloading.