300BLK 208gr how fast?

[legi0n]

How fast can I push 208gr Amax from 300BLK with CFE-BLK?

I know I can go up to 1600fps with AA1680 but I have some CFE-BLK to try.

Is the case capacity the limiting factor? This powder seems to yield low pressure with heavy bullets.

 

[ramhunter]

The idea with heavy bullets in the Blackout is : subsonic

end message

 

[legi0n]

The idea with heavy bullets in the Blackout is : subsonic

end message

I understand that is the idea where suppressors are allowed
we're in Canada though

 

[B]

This may be something worth figuring out for yourself. Since most people just want the heavy bullets close but under the speed of sound there doesn't seem to be much info out there. I would imagine 1500fps or so would be a ballpark.

 

[375 RUM]

208g use win296 with 9.4gmax for 1066fps

 

[Ganderite]

Do you want to go where no man has ever gone?

 

[legi0n]

Do you want to go where no man has ever gone?

thanks Ganderite, I am dipping my toes in the volcano

I loaded 5x12gr, 5x12.5 and 5x13gr and hope to test them tomorrow

Accurate Arms has these 2 loads for AA1680 and I hope to get close with CFE-BLK

 

[just having some fun]

Uncharted territory

What primers are you using ?.. case ?

Play Safe

From http://www.hodgdonreloading.com/data/rifle

Case: HornadyTwist: 1:8"Primer: Remington 7 1/2, Small Rifle MagnumBarrel Length: 16"Trim Length: 1.363"
BULLET WEIGHT
208 GR. HDY A-MAX
Starting LoadsMaximum Loads
Manufacturer Powder Bullet Diam.
C.O.L. Grs.
Vel. (ft/s)
Pressure
Grs.
Vel. (ft/s)
Pressure
Hodgdon CFE BLK .308" 2.260" 11.6 1,041 13,400 PSI

 

[legi0n]

uncharted indeed
note the really low pressure on the subsonic load listed
I think I'm safe for the loads I'm trying tomorrow

edit: I emailed Hodgdon about it to no avail. Their phones won't pick up for some reason.

 

[mikeelliot]

I would think they wouldn't answer their phone being a weekend and quarantine?

http://www.quarterbore.com/300whisper/supersonic

Some supersonic load data for heavies.

 

[legi0n]

I would think they wouldn't answer their phone being a weekend and quarantine?

http://www.quarterbore.com/300whisper/supersonic

Some supersonic load data for heavies.

I'm getting error 404 on your link
Am I missing something?

 

[mikeelliot]

Sorry I suck at the internet today.

Maybe this will work.

http://www.300blktalk.com/forum/viewtopic.php?f=141&t=86656

Scroll down a bit to see the link.

 

[legi0n]

thank you