Purpose Built Wolf Upper -2nd Grendel: The Addiction Begins...

[LRRPF52]

From David Fortier

Here are factory loads from 20,16 and 12.5 inch


Alexander Arms 20 inch GDMR
6.5mm Grendel Muzzle Velocity (fps)
Alexander Arms 100 grain Berger OTM 2,847
Alexander Arms 120 grain Barnes TSX 2,551
Alexander Arms 120 grain Nosler BT 2,600
Wolf 120 grain MPT 2,541
Alexander Arms 123 grain Lapua Scenar 2,627
Hornady 123 grain A-MAX 2,582
Alexander Arms 129 grain Hornady SST 2,450
Alexander Arms 130 grain Swift Scirocco II 2,400

Alexander Arms 16 inch Mid-Length carbine
6.5mm Grendel Muzzle Velocity (fps)
Alexander Arms 100 grain Berger OTM 2,723
Alexander Arms 120 grain Barnes TSX 2,494
Alexander Arms 120 grain Nosler BT 2,535
Wolf 120 grain MPT 2,445
Alexander Arms 123 grain Lapua Scenar 2,523
Hornady 123 grain A-MAX 2,463
Velocities are averages of five shots measured on an Oehler 35P chronograph 12 feet from the muzzle at an ambient temperature of 90 degrees F at 1030 feet above Sea Level.

Alexander Arms 12.5 inch 6.5mm Grendel
Alexander Arms 100 grain Berger OTM 2470
Alexander Arms 123 grain Scenar OTM 2330
Velocity figures are 10 shot averages recorded on an Oehler 35P placed 12 feet from the muzzle 1,030 feet above Sea Level at an ambient temperature of 30 degrees F.

*Note the low temps with the 12.5 inch gun

A 10.5" will push the 123gr at around 2240fps, +/- 99fps.