reloading 300 BLk

[NH Phantom]

Anyone loading 300aac subs? Got some 220 gr. looking to see what the recommendations are for powder and are magnum primers necessary?

 

[Lennypeters]

When I was playing with 300 BO the powder I used was AA1680. Regular primers.

 

[38ExtraSpecial]

H110. Lil Gun. H4198
CFE BLK was the winner though. The lowest pressure for the same velocities. Great powder.

 

[240Geezer]

Playing with 4198 now.

 

[ffej ruedorb]

CFE BLK and reg primers 12.2gr with 225gr cast boolets 1100fps
had good results with 208 jacketed with h4198 R7 and H110

 

[NH Phantom]

Well this gives me some options. I have a few of these powders already.

 

[Road_Clam]

220 gr cast Leatherhead bullets 9.7 gr of AA1680 right at about 1000 fps

220 gr FMJBT 10.7 gr of AA1680 and about 1020 fps

I'm running a 16" pistol length gas system and Magpul dedicated 300blk mags . Excellent cycling suppressed.

 

[FancyGunz]

CFE BLK is a great chooice for semi-auto, it creates a ton of gas which helps cycle the action. Just make sure to slightly compress the load for consistency!

 

[LakeTrout]

You don't need magnum primers. I like small pistol primers for subs and RL7. I haven't loaded anything heavier than 190 with it.

 

[NH Phantom]

Looks like I'm going to have to hold off on the 300blk. Setting up my toolhead and noticed the powder funnel is a N Should be an AK.
Dies came with the machine used. Oh well, I have a couple more to set up in 223 and 44. Loaded 300, 50AE the other day.

 

[240Geezer]

I want to try some CFE BLK.
I noticed my buddy used CFE pistol and it seems to be very smoky in his 9mm reloads.
My first 300 BLK reloads with 4198 and a 11.5" barrel did not produce any.

 

[pastera]

I want to try some CFE BLK.
I noticed my buddy used CFE pistol and it seems to be very smoky in his 9mm reloads.
My first 300 BLK reloads with 4198 and a 11.5" barrel did not produce any.

Haven't tried CFE BLK but like CFE pistol.
Smokey 9mm is usually low pressure assuming he isn't using wax lubed cast bullets.

 

[240Geezer]

He's using coated 9mm but I don't know what coating it is.
I'm using HS6 in my 9mm and haven't noticed it being smoky but has a reputation for being a bit dirty.
I powder coated some 180 grn a couple of weeks ago. I think they were supposed to be like a safety pink, but ended up being like salmon pink. Hideous.
I'll load those up and dispose of them ASAP.
Dropped some more 180 grn and I have 3 different Eastwood powders to choose.
Fire engine red
Ford Dearborn blue
Stop Sign yellow
What say you on the next batch?

 

[pastera]

He's using coated 9mm but I don't know what coating it is.
I'm using HS6 in my 9mm and haven't noticed it being smoky but has a reputation for being a bit dirty.
I powder coated some 180 grn a couple of weeks ago. I think they were supposed to be like a safety pink, but ended up being like salmon pink. Hideous.
I'll load those up and dispose of them ASAP.
Dropped some more 180 grn and I have 3 different Eastwood powders to choose.
Fire engine red
Ford Dearborn blue
Stop Sign yellow
What say you on the next batch?

I grabbed some blue to try out - nice color.
Powder coating is fast if you just shake them into the pan and bake but it left small divots in the coating for me.