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Posted: 9/27/2011 5:04:43 PM EST
So I have everything I need for a 300 BLK build minus the bbl.

I've got shit tons of brass that I can convert and a good friend who will let me use his press.

Any reason I shouldn't do a 300 BLK build?

Pro's Con's ?

I've already got a SCAR and a 10.5 AR so I don't want another gun in 5.56.
Link Posted: 9/27/2011 5:13:06 PM EST
Do it. A fun, interesting caliber.
Link Posted: 9/27/2011 5:15:08 PM EST
Do plan on buying a can?
Link Posted: 9/27/2011 5:16:56 PM EST

Originally Posted By littlebeavis:
Do plan on buying a can?

yes
Link Posted: 9/27/2011 5:17:46 PM EST

Originally Posted By JoeCoastie:

Originally Posted By littlebeavis:
Do plan on buying a can?

yes

GO FIR IT!
Link Posted: 9/27/2011 5:19:21 PM EST
Do it. Its even a fun round without a can
Link Posted: 9/27/2011 5:23:36 PM EST

Originally Posted By BobRoberts:
Do it. Its even a fun round without a can

Can you explain what is so "fun" about it? Is it just 30 cal goodness out of an AR15 with minimal recoil? I like the idea of it since a lot of the hunting I do is close in.

I would probably be building it on my CAV Arms lower. ( not sure what buffer to run) I'm kind of cautious about it since I don't want to have a lower that broken in half with no way to replace it since CARArms is gone now.

If I do get the bbl I will definitely have to get a 762 can. I already have a 22 and .223 can. I've been wanting a 762 can. I just haven't pulled the trigger on it yet.
Link Posted: 9/27/2011 5:27:37 PM EST
If you do it, do it right.

Can and thermal scope.
Link Posted: 9/27/2011 5:29:44 PM EST
[Last Edit: 9/27/2011 5:30:31 PM EST by littlebeavis]
Originally Posted By JoeCoastie:

Originally Posted By littlebeavis:
Do plan on buying a can?

yes


I seriously thought about it. Find it intriguing.

But, the cost of a can, paperwork and bullets is just to much cash for me to quietly shoot paper.

Link Posted: 9/27/2011 5:40:45 PM EST

Originally Posted By JoeCoastie:

Originally Posted By BobRoberts:
Do it. Its even a fun round without a can

Can you explain what is so "fun" about it? Is it just 30 cal goodness out of an AR15 with minimal recoil? I like the idea of it since a lot of the hunting I do is close in.

I would probably be building it on my CAV Arms lower. ( not sure what buffer to run) I'm kind of cautious about it since I don't want to have a lower that broken in half with no way to replace it since CARArms is gone now.

If I do get the bbl I will definitely have to get a 762 can. I already have a 22 and .223 can. I've been wanting a 762 can. I just haven't pulled the trigger on it yet.

The best way to explain it is a modern day 30 carbine with much better bullet selection. Its recoil is mild and more a thump then a crack, if that makes any sense. Mine has had no issues getting it to run a multitude of loadings, both super and sub.
Link Posted: 9/27/2011 5:43:21 PM EST
Originally Posted By BobRoberts:
Do it. Its even a fun round without a can


bob need your address I have a present for you!
Link Posted: 9/27/2011 5:45:25 PM EST
There is no logical reason not to. Seriously, I thought about it for like ten whole seconds and couldn't come up with shit.
Link Posted: 9/27/2011 5:48:24 PM EST
Go for it. I have one on my short list.
Link Posted: 9/27/2011 5:49:24 PM EST
then you can shoot these..

240grs of lead goodness..

Link Posted: 9/27/2011 5:50:13 PM EST
Originally Posted By littlebeavis:
Originally Posted By JoeCoastie:

Originally Posted By littlebeavis:
Do plan on buying a can?

yes


I seriously thought about it. Find it intriguing.

But, the cost of a can, paperwork and bullets is just to much cash for me to quietly shoot paper.



pssst, the can is not for paper.
Link Posted: 9/27/2011 5:50:40 PM EST
I think the S550, 750Lix, or the supercharged XJL would be the way to go.

Link Posted: 9/27/2011 5:55:06 PM EST
Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg


How accurate/stable is the bare lead in a rifle? Sounds like a dumb question I know, I just don't know how well a bullet 'stays together' or is affected traveling down a rifle lenglth barrel at higher then handgun velocity.

I'm still a casting noob, I've only reseached handgun stuff so far.

Supressed .300 blackout is on the list for my next rifle, well upper, I have plenty of lowers to slap it on, I can cut my own brass no problem and make a mold to cast the bullets.
Link Posted: 9/27/2011 5:58:12 PM EST
Originally Posted By wilNva:
Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg


How accurate/stable is the bare lead in a rifle? Sounds like a dumb question I know, I just don't know how well a bullet 'stays together' or is affected traveling down a rifle lenglth barrel at higher then handgun velocity.

I'm still a casting noob, I've only reseached handgun stuff so far.

Supressed .300 blackout is on the list for my next rifle, well upper, I have plenty of lowers to slap it on, I can cut my own brass no problem and make a mold to cast the bullets.


as long as you have a 1-8 twist your good to go stability wise. I have not shot for groups due to no scope, but I was ringing a 12" gong at 250 yards about 95% of the time. thats with a red dot.
Link Posted: 9/27/2011 6:01:40 PM EST

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!
Link Posted: 9/27/2011 6:03:22 PM EST
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867
Link Posted: 9/27/2011 6:07:06 PM EST
[Last Edit: 9/27/2011 6:07:35 PM EST by JoeCoastie]

Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867
I is broke right now. Gotta sell some wares on the EE just to fund the bbl.

ETA: thank you though!

Link Posted: 9/27/2011 6:08:37 PM EST
[Last Edit: 9/27/2011 6:09:32 PM EST by Fat_McNasty]
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867
I is broke right now. Gotta sell some wares on the EE just to fund the bbl.

ETA: thank you though!



they will do another run of them.. he had 38 in the overrun and there almost gone in 3 weeks..

and 11grs of A1680 gives 1050 fps..
Link Posted: 9/27/2011 6:09:42 PM EST
Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867

Castboolits is to casting what arfcom is to the AR.
Are you running those subsonic loads gas checked? What lube?

Link Posted: 9/27/2011 6:10:37 PM EST

Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867
I is broke right now. Gotta sell some wares on the EE just to fund the bbl.

ETA: thank you though!



they will do another run of them.. he had 38 in the overrun and there almost gone in 3 weeks..

and 11grs of A1680 gives 1050 fps..
Where are people getting the load data from? Remington? Can you use Clays/trailboss?

Link Posted: 9/27/2011 6:12:00 PM EST
Originally Posted By Poodleshooter:
Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867

Castboolits is to casting what arfcom is to the AR.
Are you running those subsonic loads gas checked? What lube?



plane base, with WLL carnuba red. Sized to .310 what I thought was leading was just soot/carbon. I also have GC version too that im going to load up a bit faster.
Link Posted: 9/27/2011 6:13:44 PM EST
[Last Edit: 9/27/2011 6:14:31 PM EST by Fat_McNasty]
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867
I is broke right now. Gotta sell some wares on the EE just to fund the bbl.

ETA: thank you though!



they will do another run of them.. he had 38 in the overrun and there almost gone in 3 weeks..

and 11grs of A1680 gives 1050 fps..
Where are people getting the load data from? Remington? Can you use Clays/trailboss?



guys on castboolits have been working on starting loads (from quickload) and all of us have been posing our findings.

go here and start reading..

http://castboolits.gunloads.com/showthread.php?t=102895
Link Posted: 9/28/2011 7:39:44 AM EST
bump for the day walkers.
Link Posted: 9/28/2011 7:44:51 AM EST
I'm still here and 300 blk is still awesome At the last IAHTF shoot I brought a bunch of rounds and let everyone have at it. The rounds were gone quickly, everyone enjoyed it and I am helping 2 guys put together uppers of their own. While it does not quite get to 6.8 in terms of performance, it is close enough in performance that the price difference between the two make it a winner.
Link Posted: 9/28/2011 7:55:24 AM EST

Originally Posted By BobRoberts:
I'm still here and 300 blk is still awesome At the last IAHTF shoot I brought a bunch of rounds and let everyone have at it. The rounds were gone quickly, everyone enjoyed it and I am helping 2 guys put together uppers of their own. While it does not quite get to 6.8 in terms of performance, it is close enough in performance that the price difference between the two make it a winner.


Do you just use a carbine buffer for this round? I'll be using my CAVArms lower for this build.
Link Posted: 9/28/2011 7:56:31 AM EST
My thoughts on .300 BLK (through a can) can be summed up as:

"Fuck you, coyotes!"


Link Posted: 9/28/2011 7:57:56 AM EST
Flavor of the month.

White elephant in a year or three.


Link Posted: 9/28/2011 8:07:04 AM EST
Originally Posted By Bubbatheredneck:
Flavor of the month.

White elephant in a year or three.




um..yeah...its only been kicking around in various forms for almost 20 years.
Link Posted: 9/28/2011 8:12:17 AM EST

Originally Posted By taptap:
Originally Posted By Bubbatheredneck:
Flavor of the month.

White elephant in a year or three.




um..yeah...its only been kicking around in various forms for almost 20 years.

Yeah, once wildcats go mainstream it's a good indicator that there is a sizable market for said cartridge.
Link Posted: 9/28/2011 8:20:33 AM EST
I plan on ordering an upper soon. Like you, I can't think of any reason not to want it.

I'm leaning heavily toward the LMT MRP.
Link Posted: 9/28/2011 8:24:12 AM EST

Originally Posted By Bubbatheredneck:
Flavor of the month.

White elephant in a year or three.




Link Posted: 9/28/2011 8:24:42 AM EST
whats its effective range? super and sub..
Link Posted: 9/28/2011 8:24:53 AM EST
I will do no such thing good sir.

Put a can on it and blast some sweet, sweet subsonics out of that awesome 8" barrel.
Link Posted: 9/28/2011 8:26:53 AM EST
Originally Posted By Bubbatheredneck:
Flavor of the month.

White elephant in a year or three.


I'm going to have to disagree with that one. I'm never one to jump on a new caliber bandwagon, but this one is not an "answer in search of a question" as so many new flavors of the month are. I say it sticks around.
It will never be as popular as 5.56 or .308, but it fills a great empty spot in my opinion.
Link Posted: 9/28/2011 8:26:56 AM EST
This new video, posted by LWRC, has me very excited.

http://www.youtube.com/watch?v=KFN8lZSwe0Q

Shooting both sub and super.
Link Posted: 9/28/2011 8:45:58 AM EST
Tagged for info...a suppressed SBR in 300 BLK seems to me to be just about the ultimate home-defense setup.
Link Posted: 9/28/2011 8:51:15 AM EST

Originally Posted By JoeCoastie:

Originally Posted By BobRoberts:
I'm still here and 300 blk is still awesome At the last IAHTF shoot I brought a bunch of rounds and let everyone have at it. The rounds were gone quickly, everyone enjoyed it and I am helping 2 guys put together uppers of their own. While it does not quite get to 6.8 in terms of performance, it is close enough in performance that the price difference between the two make it a winner.


Do you just use a carbine buffer for this round? I'll be using my CAVArms lower for this build.

I am running a rifle buffer in mine with zero issues:


Link Posted: 9/28/2011 8:53:19 AM EST
I'm going with the Noveske 8" upper and a 762-SDN-6

Now I need to start reloading.
Link Posted: 9/28/2011 8:56:55 AM EST

Originally Posted By DaBeamz:
I'm going with the Noveske 8" upper and a 762-SDN-6

Now I need to start reloading.

Its a pretty good round to learn on. Lots of different loads out their and pretty forgiving. Plus if you fuck up the brass, its not like you had a bunch invested. It is a lot more mature round then most think it is.
Link Posted: 9/28/2011 8:58:35 AM EST
Originally Posted By Fat_McNasty:
Originally Posted By BobRoberts:
Do it. Its even a fun round without a can


bob need your address I have a present for you!


Balls?
Link Posted: 9/28/2011 8:58:46 AM EST
Originally Posted By BobRoberts:

Originally Posted By DaBeamz:
I'm going with the Noveske 8" upper and a 762-SDN-6

Now I need to start reloading.

Its a pretty good round to learn on. Lots of different loads out their and pretty forgiving. Plus if you fuck up the brass, its not like you had a bunch invested. It is a lot more mature round then most think it is.


ya the 300 whisper has been out how long?
Link Posted: 9/28/2011 9:00:51 AM EST
Talk you out of it? Alright.

Don't do it. It's too cool for you.


Link Posted: 9/28/2011 9:01:10 AM EST

Originally Posted By Fat_McNasty:
Originally Posted By BobRoberts:

Originally Posted By DaBeamz:
I'm going with the Noveske 8" upper and a 762-SDN-6

Now I need to start reloading.

Its a pretty good round to learn on. Lots of different loads out their and pretty forgiving. Plus if you fuck up the brass, its not like you had a bunch invested. It is a lot more mature round then most think it is.


ya the 300 whisper has been out how long?

That was my point, good sir! Im your way.
Link Posted: 9/28/2011 9:06:14 AM EST
[Last Edit: 9/28/2011 9:07:46 AM EST by TheRedGoat]
Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
Originally Posted By JoeCoastie:

Originally Posted By Fat_McNasty:
then you can shoot these..

240grs of lead goodness..

http://img31.imageshack.us/img31/7426/300blk.jpg

OH yeah! that's what I'm talking about. I'm set up for casting as well! Just another plus!


get over to castboolits NOE has 8 shit 5 of the molds left..

http://castboolits.gunloads.com/showthread.php?t=126867
I is broke right now. Gotta sell some wares on the EE just to fund the bbl.

ETA: thank you though!



they will do another run of them.. he had 38 in the overrun and there almost gone in 3 weeks..

and 11grs of A1680 gives 1050 fps..


I can also run 147s(subsonic) with off-the-shelf loads in my 9mm all day long.

I know there is an extra 33grs of lead (a 22LR worth) in the 180gr round, but I am just not feeling the need to reload a wildcat to get the same results as a proven off-the-shelf-at-Wal-Mart load?

I have a .308 that I can run subsonics in as well if I *really* need to get to 180+ grs of subsonic.

I don't get the 300 BLK's purpose.

TRG
Link Posted: 9/28/2011 9:10:31 AM EST
[Last Edit: 9/28/2011 9:42:57 AM EST by Blackwind]
Originally Posted By JoeCoastie:

Originally Posted By taptap:
Originally Posted By Bubbatheredneck:
Flavor of the month.

White elephant in a year or three.




um..yeah...its only been kicking around in various forms for almost 20 years.

Yeah, once wildcats go mainstream it's a good indicator that there is a sizable market for said cartridge.


This.


Originally Posted By TheRedGoat:
I can also run 147s(subsonic) with off-the-shelf loads in my 9mm all day long.

I know there is an extra 33grs of lead (a 22LR worth) in the 180gr round, but I am just not feeling the need to reload a wildcat to get the same results as a proven off-the-shelf-at-Wal-Mart load?

I have a .308 that I can run subsonics in as well if I *really* need to get to 180+ grs of subsonic.

I don't get the 300 BLK's purpose.

TRG


for me, the following reasons were why I chose to go with the 300 BLACKOUT.


  • Utilizes the same bolt, compatible with the standard AR bolt

  • Utilizes the same magazines

  • Magazine capacity remains the same



For someone making the decision to shoot something other than 5.56 this is an easy step with minimal fuss to do so.
Link Posted: 9/28/2011 9:11:04 AM EST
What's the difference between a BLK and a 300Whisper?
Link Posted: 9/28/2011 9:13:08 AM EST
Originally Posted By Bubbatheredneck:
Flavor of the month.

White elephant in a year or three.




I don't think it's reall a flavor of the month. It has just about every advantage I can think of for a subsonic AR platform using all standard parts except the barrel. For around $500-$600 you can swap your upper and buffer srping back and forth in about 2 minutes and go from a standard AR to subsonic supressed.
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