300blk loading

[alexs2006]

16inch AR: I am shooting 150 fmj at 2005 fps with 17.2 LilGun and a Federal Small Rifle primer. Note Fiocchi primers with the same load gives 1954fps. 17.2 LilGun seems like a max load but Speer Data goes all the way to 20.0.

Generally: the 300Blk is not a naturally accurate cartridge—500yards is a big reach for it.

I know, but it’s what I’m playing with right now. It’s just playing and saying I’ve done it.

 

[rosewood]

Obviously, this only applies to my barrel and SSTs, so use at your own risk:

125gr Hornady SST
19gr Lil’ Gun (I've gone as high as 19.5gr with no problems)
WSR primer
2.1” COAL

I developed this particular load for deer and it produced truly excellent results in 10% ballistics gel as well as a really delicious whitetail.

Using 21.0gr with lil'gun under the 125 sst in single shot CVA 16.5", shoots sub MOA for me. It is a highly compressed load, but no pressure signs. I think I am hitting 2350-2400.
Didn't care for H110 results in the 300BLK. Lil'gun is my favorite for supers and CFE BLK is my favorite for subs.

Rosewood