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I don't understand the appeal for 300blk but those are very good prices. Wish I had the extra cash laying around for the .223/5.56... I'm taking donations from all who are willing ;)
 

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Not to hijack this thread, but what is the appeal of the 300blk? I know very little about rifles and AR's in particular. I know nothing about 300blk at all.

I don't understand the appeal for 300blk but those are very good prices. Wish I had the extra cash laying around for the .223/5.56... I'm taking donations from all who are willing ;)
 

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I don't understand the appeal for 300blk but those are very good prices. Wish I had the extra cash laying around for the .223/5.56... I'm taking donations from all who are willing ;)

It's kind of like the 7.62 x 39...without the Communist stigma. :D

There's a lot of options in factory ammo now, but you really need to be hand loading to both get the best value and versatility for the round. Load them full power for hog killing or load them sub-sonic if you want to sneak up on them.

https://www.shootingillustrated.com/articles/2015/11/18/762x39-vs-300-blackout/
 

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Actually, .300 Blackout(BO) is easier to load for suppressed guns. Getting a good subsonic load to work with DI is a balancing act, and the 5.56 was designed around a full-power gas system. .300 BO was designed with suppressors in mind. Local shop carries subsonic loads in .300 BO, and one of the guys runs them with great success in his suppressed SBR. It's funny at the range to hear a mild "THUMP....*****.....chank" of his SBR.
 

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Thanks for the explanation. All I got out of the article linked above was that 300blk was possibly developed because of some desire the military had.

It is getting late for me, so excuse me for asking what might be a stupid question, but what is "DI"? Sorry... I may have missed it, but I miss a lot of things when I get this tired. ;)

Actually, .300 Blackout(BO) is easier to load for suppressed guns. Getting a good subsonic load to work with DI is a balancing act, and the 5.56 was designed around a full-power gas system. .300 BO was designed with suppressors in mind. Local shop carries subsonic loads in .300 BO, and one of the guys runs them with great success in his suppressed SBR. It's funny at the range to hear a mild "THUMP....*****.....chank" of his SBR.
 

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Direct Impingement. The expanding gas through the gas tube is what runs the AR platform.
 

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Thanks for the reply. I think I already posted somewhere in this thread that I know nothing about AR's.

However, I am learning... slowly.
The other, newer system of actuating the bolt on an AR is Gas Piston. I don't have any of those as they are more expensive and I haven't been sold on the benefits...maybe because I am a casual shooter of the AR. They run cooler and cleaner than DI which as a casual user doesn't offer a lot of attraction to me.

Here's a little explanation of the different systems:

The difference between Gas Piston and Direct Impingement technology for an AR-15


In a little while after hanging around here you will suddenly get a burning desire to own one or more...it's one of the hallmarks of this forum as we are first class gun enablers. :D
 

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Get one and start playing with it. I've gone from none to 4 or 5 recently. They are more accurate but less reliable than an AK. I'm building a pistol lower right now. They have these evil things called detents that will make you crazy but other than that they are fun.

Thanks for the reply. I think I already posted somewhere in this thread that I know nothing about AR's.

However, I am learning... slowly.
 

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Get one and start playing with it. I've gone from none to 4 or 5 recently. They are more accurate but less reliable than an AK. I'm building a pistol lower right now. They have these evil things called detents that will make you crazy but other than that they are fun.

See BackStop...I told you so.... :)
 
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300 BLK differs from 223/556 by just the barrel. Same parent case so, same bolt and same mag. The case is short compared to a 223/556 and uses fast burning powders SO it is effective as an SBR or pistol. One military application was to be an upper swap so troops could have a CQB gun in 30 caliber with the shorter barrel adding to that advantage. This with just a quick upper swap and a fresh mag of 30 cal ammo!

I built a 14.5” barrel gun with a pinned and welded muzzle device making it a ‘legal’ 16” rifle. I’ve never used factory ammo - instead I cut and form my brass from 223/556 cases that are shorter than spec - these are in no short supply! The gun will shoot 110 to 220 gr. bullets and cycle just fine. An adjustable gas block is handy if you are making radical changes. I have a 150 gr. super sonic match round that I like and it puts out sub 1” groups at 100 yds consistently with a 3-9 or 4-12 scope - both have been on the gun. With a red dot sight it is also an effective run-n-gun rifle as well.
 

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Actually, .300 Blackout(BO) is easier to load for suppressed guns. Getting a good subsonic load to work with DI is a balancing act, and the 5.56 was designed around a full-power gas system. .300 BO was designed with suppressors in mind. Local shop carries subsonic loads in .300 BO, and one of the guys runs them with great success in his suppressed SBR. It's funny at the range to hear a mild "THUMP....*****.....chank" of his SBR.
That's about it for me!
to use as a home protection gun I think the 300 might be the best choice in an AR / AK platform, down load it subsonic, reduce the nosie and flash from firing it inside the house as well as recoil.
honestly and everyone has an opinion but I just don't see using a rifle for inside protection myself in any caliber.
I am not well versed enough on the various AR cartridges to really make much of a statement.
 
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Thanks for the reply. I think I already posted somewhere in this thread that I know nothing about AR's.

However, I am learning... slowly.
here, this may help with future questions that come up pertaining to the AR!
 

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Just remembered I bought a Radical upper. It's a POS and they weren't really helpful. I got it working eventually but it should work out of box.
Wow...both of my 300 AAC uppers...carbine and pistol length are Radical Firearms and operate great. Popped in the BCG and charging handle, pinned them to the lowers and boom, boom, boom.
 

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I notice they have 'em in 7.62x39 which to me is superior to any numbers I've seen from .300 BLK. However, I've been warned they do have feeding problems and need a curved magazine due to their tapered cases. I can understand that, and if you look at the gun, the top portion of the magazine HAS to be straight. I'll keep my two SKSs in the caliber. :D

You know, if it weren't for Hillary claiming she was going to be "Madam President", and me worrying she might be right, I probably wouldn't have an AR today. :rofl: All that said, I'm glad as heck she was WRONG! I kinda like the little AR even if it is sorta worthless. Well, it ain't totally worthless, it's capable loaded with the right bullet, it just ain't no .308 Winchester. :rolleyes: But, I don't really want ANOTHER one. I've been talking myself out of an M1 Carbine all day, gimme a break. :rofl:
 
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I notice they have 'em in 7.62x39 which to me is superior to any numbers I've seen from .300 BLK. However, I've been warned they do have feeding problems and need a curved magazine due to their tapered cases. I can understand that, and if you look at the gun, the top portion of the magazine HAS to be straight. I'll keep my two SKSs in the caliber. :D

You know, if it weren't for Hillary claiming she was going to be "Madam President", and me worrying she might be right, I probably wouldn't have an AR today. :rofl: All that said, I'm glad as heck she was WRONG! I kinda like the little AR even if it is sorta worthless. Well, it ain't totally worthless, it's capable loaded with the right bullet, it just ain't no .308 Winchester. :rolleyes: But, I don't really want ANOTHER one. I've been talking myself out of an M1 Carbine all day, gimme a break. :rofl:

Well my friend, you've come to the right place. You NEED and DESERVE that M-1 carbine... ;)
 
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