05-14-2020, 06:59 PM
Hey all, so I've been playing with my PSA 20" Grendel lately, and found a load that is giving me insane accuracy, but I dont have a chrono to check it, and I've got no idea what kind of velocity to expect.
I've been loading 27.2 grains of Benchmark behind a 123 SST, and according to Hodgdon's website and my Lee manual I should be getting around 2400fps, but factory ammo like the Black and Custom come in around 2550-2600fps. Is factory ammo that hot, or are the numbers wrong on my reloading manuals?
I've been loading 27.2 grains of Benchmark behind a 123 SST, and according to Hodgdon's website and my Lee manual I should be getting around 2400fps, but factory ammo like the Black and Custom come in around 2550-2600fps. Is factory ammo that hot, or are the numbers wrong on my reloading manuals?