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Posted: 1/29/2011 1:24:31 PM EDT
Anyone have a 300 blackout upper? What do you think about it, and specifically is this a bullet that matches well to a SBR??
Link Posted: 1/29/2011 1:31:36 PM EDT
I have a 300 Fireball upper and have a 300 Blackout on the way.

Definitely a good SBR choice. Both of mine are. I load all my own ammo. Fairly easy to form brass from 223 and Hornady 208s make good subsonics.
Link Posted: 1/29/2011 2:24:36 PM EDT
I will be getting a 10" as soon as I see ammo on the shelves.
Link Posted: 1/29/2011 2:46:37 PM EDT
Originally Posted By ExKalifornian:
I will be getting a 10" as soon as I see ammo on the shelves.


I was at trading places in monroe today & they had some. Also I have seen it bullseye.
Link Posted: 1/29/2011 2:46:52 PM EDT
[Last Edit: 1/29/2011 2:48:26 PM EDT by MntnMnWV]
I've been running a 10.5" suppressed 300FB for several years now. Set up mainly for 100-300yd ground hogs and deer out to 150yds or so. One of the funnest guns I've ever owned.

With the upcoming availability of commercial brass, I think a more tactical SBR is in my future. Definitely won't feel as bad when I loose 20 pieces of brass, in the grass, every trip to the range.
Link Posted: 1/29/2011 3:31:47 PM EDT
I dont reload my own ammo, so availability is something i have to consider as well.
Link Posted: 1/29/2011 3:41:22 PM EDT
Originally Posted By 7mm-08:
Originally Posted By ExKalifornian:
I will be getting a 10" as soon as I see ammo on the shelves.


I was at trading places in monroe today & they had some. Also I have seen it bullseye.


Damn it, then I guess a barrel is in my future. Then a can.
Link Posted: 1/29/2011 3:50:09 PM EDT
If you have time, loading single stage, you can load subsonics for about 1/3 of the factory price. 1/2 the price of the supersonic ammo.

The economics always make sense on these limited production rounds. You don't need $1000 worth of gear to get started.
Link Posted: 1/29/2011 4:00:07 PM EDT
I have the 9 1/2" barrel on order, and i have shot the subs out of a 9 1/2" upper that a friend scored.

I posted a short video of the 300 suppressed and un-supp.

It is a very impressive round, and will take off.

The supersonic stuff is already being produced by Remington, and loaded in the database of a VERY large distributor.


RIch
Link Posted: 1/29/2011 4:24:04 PM EDT
Somebody PMed me on the process to load Subs, so I figure I will post it here.

I have some Redding 300 Fireball dies. They should be identical or damn close to 300 Blackout dies. Its a bit like 223 vs 556.

Brass Forming / Prep

To form the brass I start with prepped 223 brass. I got a bunch awhile ago and mailed to a member here to clean/rem primer pockets/resize. He doesn't cheaper than I could ever afford to timewise since he has a Dillon 1050 that automates the process. In fact there is a guy here who will convert your 5.56 brass to 300 BLK for $.10 a piece which might be worth it.

You take the threaded expander out of the 300 BLK sizing die. You run a 5.56 case through there and it will put the new 300 BLK neck on it.

Then you trim about 1/4" off of it to get down to 1.37 or so.

Once its trimmed, you resize it with the expander put back in the die.

All that is only done once.

Loading:

I load all my Subs with IMR 4227. Its not popular, but theoretically, since its an extruded powder, it should be less temperature sensitive. I use Hornady Amaxes because they are cheaper and I believe that big hollow point will do a little bit more damage than the more expensive Sierra match kings.

With IMR 4227 and 208 Amaxes, 9.5 Grains of powder has been around 950-975 FPS in the cold 10" SBR and 1025-1050 when its warmer in a longer 16" barrel.

So once you have the brass formed, you just load it like any other rifle cartridge. Prime it, dispense a charge, and seat it to about 2.20" or so. AAC has been loading them short and there was some discussion of modifing Pmags. I have never had a FTF but I haven't pushed it full auto etc.

I use a RCBS chargemaster dispenser which is slower than a powder measure, but easier to change charge weights.
Link Posted: 1/30/2011 7:08:02 AM EDT
I'm very interested. Could be the basis for my go-to deer rifle next year.

I never could warm up to 6.8 needing new mags and a new bolt(even though its an awesome caliber).
Link Posted: 1/30/2011 10:09:27 AM EDT
We've got a few members on snipersparadise.com that are shooting and reloading the .300 Blackout. They've posted some pretty good info.
Link Posted: 1/30/2011 10:09:40 AM EDT
[Last Edit: 1/30/2011 10:09:48 AM EDT by robpiat]
In case you need additional inspiration....My cost on these is about .40/round + my time including the brass.



Link Posted: 1/30/2011 2:32:04 PM EDT
I guess the next logical question is putting an upper together. I have a quote from a guy local to me, but are there other manufacturers that are putting them together so that i can compare prices/options?
Link Posted: 1/30/2011 2:56:27 PM EDT
Originally Posted By robpiat:
In case you need additional inspiration....My cost on these is about .40/round + my time including the brass.



I'll see your 208 AMax inspiration, and raise you some 125gr Ballistic Tip, 175gr Custom Competition, and 220gr SMK

Link Posted: 1/30/2011 3:37:26 PM EDT
Originally Posted By MntnMnWV:
Originally Posted By robpiat:
In case you need additional inspiration....My cost on these is about .40/round + my time including the brass.



I'll see your 208 AMax inspiration, and raise you some 125gr Ballistic Tip, 175gr Custom Competition, and 220gr SMK

http://farm6.static.flickr.com/5252/5402913422_fe85d4581a.jpg


I shot all my stash
Link Posted: 1/30/2011 3:40:04 PM EDT
[Last Edit: 1/30/2011 3:40:42 PM EDT by robpiat]
Originally Posted By marshjr:
I guess the next logical question is putting an upper together. I have a quote from a guy local to me, but are there other manufacturers that are putting them together so that i can compare prices/options?


I am having a guy on silencertalk, Delta Company arms, build me a side charging upper. It should alleviate any blast your face when running a can. It'll look something like this:



His price to build it was close to the wholesale cost of the components.
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