Ironduke
02-07-2013, 11:45 AM
Mornin!
So several days ago I went to the range with my trusty 300 Blk AR with ammo made of the 235 Lee and 11gr of RE-7.
This load produced an avg velocity of 1024 fps and would eject the empties, but would not pick up new rounds from the mag. Basically I has an auto ejecting single shot. LOL!
I figure i have two ways to go. First is to work up to a higher load with RE-7. I can go up in 1/2 grain increments until i run into excess pressure or my rifle cycles reliably. Hopefully my velocity will increase only a small amount so I can stay under SoS.
The other option is to try some RE-10x. Being a bit slower than RE-7, it might give me some more pressure at the gas port. If so i might be able to keep my velocity down and still get reliable function.
My question about option 2 is where to start for a load. Slower powders require more powder to reach the same velocity as faster powders, but I am long since past the days where I experimented willy-nilly. I figure i can start at 11 gr and work up since 10x is slower than 7. What do you guys think?
Paul
So several days ago I went to the range with my trusty 300 Blk AR with ammo made of the 235 Lee and 11gr of RE-7.
This load produced an avg velocity of 1024 fps and would eject the empties, but would not pick up new rounds from the mag. Basically I has an auto ejecting single shot. LOL!
I figure i have two ways to go. First is to work up to a higher load with RE-7. I can go up in 1/2 grain increments until i run into excess pressure or my rifle cycles reliably. Hopefully my velocity will increase only a small amount so I can stay under SoS.
The other option is to try some RE-10x. Being a bit slower than RE-7, it might give me some more pressure at the gas port. If so i might be able to keep my velocity down and still get reliable function.
My question about option 2 is where to start for a load. Slower powders require more powder to reach the same velocity as faster powders, but I am long since past the days where I experimented willy-nilly. I figure i can start at 11 gr and work up since 10x is slower than 7. What do you guys think?
Paul