Reloading 7.62x54r, 308, 7.62x39, and 300 blackout

[Michael566]

I'm looking at Reloading 7.62x54r, 308, 7.62x39, and 300 blackout. Is there a one size fits all powder for these calibers? I would want the 300 Black out to be subsonic. Any advice is much appreciated

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[Flopsweat]

I'm looking at Reloading 7.62x54r, 308, 7.62x39, and 300 blackout. Is there a one size fits all powder for these calibers? I would want the 300 Black out to be subsonic. Any advice is much appreciated

Off the top of my head, I doubt it. Did you know that we have a reloading section?

Ammunition & Reloading

Questions and discussion about ammunition, from .17 to 22mm and everything in between

www.northwestfirearms.com

 

[JuglansRegia]

You'll need at least two different powders.

 

[fstdraw]

You can use AA-1680 for 7.62x39 and .300 blackout. NOT sure about sub-sonic however.

GL

 

[JustShoot]

I'm looking at Reloading 7.62x54r, 308, 7.62x39, and 300 blackout. Is there a one size fits all powder for these calibers? I would want the 300 Black out to be subsonic. Any advice is much appreciated

Making all 3 ' function' with 1 powder , maybe .. A-2230 / X-terminator .
But It makes big difference in what your Feeding ? One does all 3 .. If you are shooting Boltaction Rifle . but if you are Trying to cycle an AR, reliably subsonic Vel. then that really throws-up obstacle . Using Subsonic Vel. BLK. in a Boltaction can be easy tuned by bullet weight depending on a powder .
.

 

[Nosferatu]

Trail Boss. Just don't expect much oomph.

 

[Brassy Bill]

I'm looking at Reloading 7.62x54r, 308, 7.62x39, and 300 blackout. Is there a one size fits all powder for these calibers? I would want the 300 Black out to be subsonic. Any advice is much appreciated

You may want to study on powders and burn rates. Need a different powder for wach. Except H4895 " might" handle all.
7.62x39 H322, Hodgdon Black
7.63x54R IMR4350, simular .308, same
300 Black out, why?