thoughts on a .300blk upper
Posted: Sat May 25, 2019 4:26 am
Hello i am a licenced German gun dealer and have some thoughts on a upper build.
Sorry for my bad english writing.
I own a Here Arms CQR in .300blk with a 10.5" barrel with pistol type gas port and a SONIC suppressor.
The rifle is very precise with super sonic ammo, but over gased with the suppressor on.
Want to shot also, for plinking, subsonic loads with cheap pulled military surplus 148gr bullets, but the rifle will not cycle the next round.
tryed all kinds of powder and loads, but only cycles when i go trans or supersonic.
My idea is to buy a new barrel with no gas port hole and set the gas port closer to the upper and use a adjustible gas port.
The pistol powders are getting the same pressure like rifle powders, but the pressure dont last as long while pushing the bullet trough the barrel.
If i move the Gas port closer to the upper, i will get to a point where pistol and rifle powders have the "same" high pressure.
Then you can use a adjustible gas port to control the pressure, so both loads will work proper.
any thoughts?
Sorry for my bad english writing.
I own a Here Arms CQR in .300blk with a 10.5" barrel with pistol type gas port and a SONIC suppressor.
The rifle is very precise with super sonic ammo, but over gased with the suppressor on.
Want to shot also, for plinking, subsonic loads with cheap pulled military surplus 148gr bullets, but the rifle will not cycle the next round.
tryed all kinds of powder and loads, but only cycles when i go trans or supersonic.
My idea is to buy a new barrel with no gas port hole and set the gas port closer to the upper and use a adjustible gas port.
The pistol powders are getting the same pressure like rifle powders, but the pressure dont last as long while pushing the bullet trough the barrel.
If i move the Gas port closer to the upper, i will get to a point where pistol and rifle powders have the "same" high pressure.
Then you can use a adjustible gas port to control the pressure, so both loads will work proper.
any thoughts?