02-20-2014, 08:22 PM
Like I said, you're looking at 200yds of performance difference between my 16" Grendel and 22" .260 Remington with the 123gr A-MAX, with both being supersonic past 1000yds at sea level still.
If you use a 22"-24" Grendel with LVR, you're looking at 90yds of performance difference than my 2915fps .260 Rem load with the 123gr A-MAX.
The .260 Rem is a 60,000psi SAAMI cartridge. .308 Winchester and 5.56 NATO are both rated by SAAMI to 62,000psi.
We should be trying to reduce peak pressure, not increase it. That's why I look closely at the rated PSI next to powders with the bullet, as well as the mv. Lower peak pressure plus longer burn time but not such that we hit the gas port hard is what you're looking for.
If you use a 22"-24" Grendel with LVR, you're looking at 90yds of performance difference than my 2915fps .260 Rem load with the 123gr A-MAX.
The .260 Rem is a 60,000psi SAAMI cartridge. .308 Winchester and 5.56 NATO are both rated by SAAMI to 62,000psi.
We should be trying to reduce peak pressure, not increase it. That's why I look closely at the rated PSI next to powders with the bullet, as well as the mv. Lower peak pressure plus longer burn time but not such that we hit the gas port hard is what you're looking for.