.300 Blackout Recipes147gr FMJ Surplus

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JayZee

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Feb 24, 2018
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Hi everyone, I am looking to reload a bunch (500 or so) 147gr FMJ projectiles for my .300 Blackout stash. I have maybe only a few hundred rounds for it I bought and it's all for hunting. I have no real "bulk" or training ammo as it stands.

I have a case gauge on the way for better safety after hearing about how mixed brass can cause issues with trimming/sizing. I heard it can cause out of battery firings..not safe.

Anyways, I have roughly 500 147gr M80 surplus I'd like to load.

All my manuals have powders I don't currently have on hand.

I can use the 150gr data for it I presume(3grs not being relevant) but it still turns up with powders I don't have. I am not against buying more powder, but if I don't have to I can start loading sooner rather than later.

What's your favorite recipe for a supersonic 147-150gr FMJ in .300 Blackout?
Please list your favorite powder for supersonic loading in .300 Blackout and any recipes for 147-150gr you know about.
 
I bought 8 pounds of Shooter's World SBR-Socom, mostly for my 458 socom AR15, but I was also impressed by the advertised performance of this powder with 150 grainers in the 300 blackout. Something like 2158 fps? I hope to try it soon, for it has, on paper, the better pressure and velocity numbers of all powders for the 300 ACC/150 grain combination.
 
IMR
4064
4227
4895

Win 748
Varget

700x(I heard is good for subsonic?)


I wanted to try the SBR-Socom/see it for sale a lot but knew nothing about it.

I appreciate all options/suggestions.
I'm one for having as many options/recipes as possible. I use the Red/Blue/Green dots for most my shotguns/pistols. Makes it easier.
 
I shot my AAC blackout Model 7 Friday. My loads are with H110 using 147 FMJ’s with more than the recommended weight. Shoots well.
 
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