myrifle Wrote:I have to agree with Klem on this one.
After doing some very detailed work with Varget in my cz grendel. Anything approaching 28.4 grains are more and my coal length had to be way past 2.300 to have room to not crush powder.
Now I had the mag length too run such long coal lengths but at normal ar15 mag lengths, 28.5 grains of varget is a maxed out crunchy load.
There is nothing wrong with compressing powder. This is one of the biggest misconceptions of reloading, that compressed loads are somehow bad.
Here is Hodgdons take on compressed loads:
Quote:COMPRESSED LOADS
Normally a pistol or rifle shellcase is considered full, or 100% loading density, when the powder charge sits at the base of the bullet when the bullet is fully seated. It is possible with some powders and cartridges to increase the powder charge slightly above this point, such that when the bullet is seated it actually compresses the powder charge slightly. This condition is known as a compressed load.
Hodgdon notes in its reloading data if the subject charge is a compressed load. A full case, or lightly compressed charge is an ideal condition for creating loads with the most uniform velocities and pressures, and oftentimes, producing top accuracy
If you look at their published compressed load data, there arent any of them that exceed 50,000psi, and they have a lot of them.
Hodgdons publishes at least 30 compressed loads for 6.5 Grendel from 85gr Sierra up through 123gr Sierra.
They range from 42,400psi to 50,000psi.
They have more compressed loads than not.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
