06-13-2012, 09:37 PM
I just confirmed that it was in fact a Grendel bolt gun, and it was an extreme pressure test to certify whether or not the Grendel could be used in EU hunting where they have certain velocity, bullet weight, and caliber minimums required for moose, and related competitions.
The load is considered dangerous in a bolt gun, and brass is toast after 1 firing. While discussing this today with one of the head R&D guys at Lapua, he said to think about the maximum pressure capacity of .300 Win Mag, then add about 20%. That is what it took to push the 123gr Scenar at 940 m/s from a bolt gun Grendel. I think .330 Win Mag is 64ksi SAAMI, so 20% on top of that is about 78,000psi-not recommended to try at home folks.
I am quite familiar with the 6.5x47 Lapua, and know several competitors who use it. I almost chambered my AR10 in it, but chose .260 Rem for brass availability. A buddy of mine pushes the 140gr VLD's from a 25" RPA at over 2980fps, and I know some Norwegian Snipers who push the 123gr Scenar well over 3200fps with the x47. Primer pockets will loosen quickly with those loads, to say the least, but the trajectory is awesome!
The load is considered dangerous in a bolt gun, and brass is toast after 1 firing. While discussing this today with one of the head R&D guys at Lapua, he said to think about the maximum pressure capacity of .300 Win Mag, then add about 20%. That is what it took to push the 123gr Scenar at 940 m/s from a bolt gun Grendel. I think .330 Win Mag is 64ksi SAAMI, so 20% on top of that is about 78,000psi-not recommended to try at home folks.
I am quite familiar with the 6.5x47 Lapua, and know several competitors who use it. I almost chambered my AR10 in it, but chose .260 Rem for brass availability. A buddy of mine pushes the 140gr VLD's from a 25" RPA at over 2980fps, and I know some Norwegian Snipers who push the 123gr Scenar well over 3200fps with the x47. Primer pockets will loosen quickly with those loads, to say the least, but the trajectory is awesome!