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IS 300 Blackout REALLY That Good ?

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IS 300 Blackout REALLY That Good ?

Old 01-24-2015, 07:21 AM
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Default IS 300 Blackout REALLY That Good ?

If you look at the ballistics of Sub Sonic 300 Blackout and compare them to .45 and you already have a Thompson in .45 ...

In a home defense scenario is it really worth it to buy yet another caliber ???

http://www.kygunco.com/thompson-m1-c...d-walnut-59380
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Old 01-24-2015, 07:28 AM
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The beauty of the 300 BO is that you have the ability to have both sub and supersonic ballistics with the same gun by switching magazines without having to adjust the gas block or any other modification. So you can interchangeably have the quieter suppressed subsonic and then have more power when you want it.

But, as you put it, no there is not really a reason to have it as opposed to the 45 thompson if all you want it subsonic and for home defense. But if you want the ability to fire supersonics for hunting or home defense then it makes sense.
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Old 01-24-2015, 11:04 AM
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Why would you want the 300 for home defense?
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Old 01-24-2015, 11:25 AM
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Originally Posted by hybrid View Post
Why would you want the 300 for home defense?
Some possibilities:

You like the AR platform

Want excellent terminal ballistics

Run it with a suppressor, you don't need ear pro

Downside is that it will penetrate walls more than 5.56
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Old 01-24-2015, 12:22 PM
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Extremely versatile round for reloading, great for SBR application or pistol build as you only need 8" for complete powder burn. Wicked suppressed with sub-sonic 208-220gr. The 110-125 super-sonic's will penetrate 20+" of ballistic gelatin at 300 yards, plenty power for most four legged critters. The night varmint (pigs and coyotes) hunters use them for there lack of flash and quick follow ups when multiple targets appear.

Got my first Whisper when JD Jones was building them in his basement using Contender's. Back then we were necking 221 fire ball brass. With the factory brass available and once fired 5.56 brass worked for ($130.-$150./1000) your reloading cost are low.

I have more 300BO's in my safe then any other single caliber, my 5.56 guns are getting jealous.

PS: Leupold, ACOG, Burris and a few other scope makers have dedicated products that are marked for both super and sub loads.
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Old 01-24-2015, 04:59 PM
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WOW ! Best answer Now I need to decide if i want to sell my Garrand (sp?)
to help fund the purchase ...

If you have a Carbine to sell PM Me ...

Originally Posted by Huntersun View Post
Extremely versatile round for reloading, great for SBR application or pistol build as you only need 8" for complete powder burn. Wicked suppressed with sub-sonic 208-220gr. The 110-125 super-sonic's will penetrate 20+" of ballistic gelatin at 300 yards, plenty power for most four legged critters. The night varmint (pigs and coyotes) hunters use them for there lack of flash and quick follow ups when multiple targets appear.

Got my first Whisper when JD Jones was building them in his basement using Contender's. Back then we were necking 221 fire ball brass. With the factory brass available and once fired 5.56 brass worked for ($130.-$150./1000) your reloading cost are low.

I have more 300BO's in my safe then any other single caliber, my 5.56 guns are getting jealous.

PS: Leupold, ACOG, Burris and a few other scope makers have dedicated products that are marked for both super and sub loads.
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Old 01-24-2015, 05:01 PM
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Ask ur neighbors....
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Old 01-24-2015, 05:35 PM
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Before you sell your Garand, do a little googling about the 300 blackout. Ammo is expensive. Are you planning on buying a suppressor? If not, just go with 308
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Old 01-24-2015, 05:42 PM
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Originally Posted by Tommysmicroskiff View Post
WOW ! Best answer Now I need to decide if i want to sell my Garrand (sp?)
to help fund the purchase ...

If you have a Carbine to sell PM Me ...
Tommy,
Shoot me a pm with your email addy and I'll send you a few pic's of a custom Seekins billet lower with CMMG 16"wasp barrel with JP fore end/adj gas system/ brake and ACE stock with a Jared 3lb 2 stage trigger that is a tack driver. Need to sell to fund my can/tax stamp addiction.

PS: PM sent.
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Old 01-24-2015, 06:08 PM
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Originally Posted by Boataholic View Post
Before you sell your Garand, do a little googling about the 300 blackout. Ammo is expensive. Are you planning on buying a suppressor? If not, just go with 308
All ammo is currently expensive, surplus .308 is still north of .70$/round for quality Hirt.

Current factory .300BO can be had from $1.00-$1.70 for premium loads. The BO was not designed to pray and spray but as a precession QUITE plate form so the need for large ammo surplus is not the goal. My take when building a BO is to go for the finest components available, best barrels, triggers, lowers ect.. to realize the potential the .300 BO has, the .30 cal BC is well known and for mid range and shorter this little unit is sweet.

My reloading costs are less then .55$/round and take the brass out it's closer to .35$/round, granted I buy in bulk and do not count my time.
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Old 01-24-2015, 06:49 PM
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AND after Sandy Hook there wasn't a 300BO round in sight. Long after any 223 was available.

That round falls like a wet turd fast. Check out the ballistics.
I don't need another round in the stable. Thanks
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Old 01-24-2015, 07:35 PM
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Originally Posted by The Revenge View Post
AND after Sandy Hook there wasn't a 300BO round in sight. Long after any 223 was available.

That round falls like a wet turd fast. Check out the ballistics.
I don't need another round in the stable. Thanks
I'm going to get accused of being a BO fan boy but so be it.
Your post is correct on both parts but only in parts.

Agreed the sub-sonic drops like a rock and is intended for short range (100-125 yards) suppressed work.
Super-sonic (110-125gr) have very close ballistics to the 5.56 with better BC and weight carrying capabilities.

No surprise you could not find any BO on factory shelves after Sandy Hook as SAAMI did not certify the round till 01/2011, not hard to understand it taking mfg's a few years to ramp up. Comparing a newly certified wild cat availability to a mill surplus round that's has been in production for over 50 years is less then fair.
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Old 01-24-2015, 07:48 PM
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Originally Posted by Huntersun View Post
I'm going to get accused of being a BO fan boy but so be it.
Your post is correct on both parts but only in parts.

Agreed the sub-sonic drops like a rock and is intended for short range (100-125 yards) suppressed work.
Super-sonic (110-125gr) have very close ballistics to the 5.56 with better BC and weight carrying capabilities.

No surprise you could not find any BO on factory shelves after Sandy Hook as SAAMI did not certify the round till 01/2011, not hard to understand it taking mfg's a few years to ramp up. Comparing a newly certified wild cat availability to a mill surplus round that's has been in production for over 50 years is less then fair.
The availability will remain the same after the next terrible event.

I won't accuse you of being a fan boy. If that's your preference hats off.
It's splitting hairs for the average public that wants a weapon for the next revolution or just to protect their home and neighborhood with.
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Old 01-24-2015, 09:00 PM
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Originally Posted by The Revenge View Post
The availability will remain the same after the next terrible event.

I won't accuse you of being a fan boy. If that's your preference hats off.
It's splitting hairs for the average public that wants a weapon for the next revolution or just to protect their home and neighborhood with.
While I'm not dissing the 5.56 round, I am touting the benefits of the .300 BO in the same platform. I assume you have had the opportunity to work with this round? If so can you admit to it's superior ballistics while maintaining it's relative size and weight benefits vs the similar .308 and 7.62x 39 platforms?
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Old 01-24-2015, 09:38 PM
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Originally Posted by Huntersun View Post
While I'm not dissing the 5.56 round, I am touting the benefits of the .300 BO in the same platform. I assume you have had the opportunity to work with this round? If so can you admit to it's superior ballistics while maintaining it's relative size and weight benefits vs the similar .308 and 7.62x 39 platforms?
No.

That's why I have an AR10. The same ammo works in it and my savage out to 850yd.
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Old 01-24-2015, 10:11 PM
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300 BO is outstanding in subsonic performance. Not so great supersonic. Like lobbing mortors.

6.8 spc sammi 2 greatly outperforms in supersonic performance. There's a reason 6.8 is the 2nd most popular AR platform.
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Old 01-25-2015, 03:56 PM
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Originally Posted by ProppedUp View Post
Here is a question for all you 300 guys.

Who makes a subsonic 300BLK round with good expansion properties?

Don't say Lehigh either. Everything I have seen on their subsonic rounds is that they have feed issues. So that's a non starter.
I believe they have addressed the issue with there OAL being the problem by down sizing to a 194 gr sub.

Have not tried any but the are claiming 3000fps with there 78gr Super out of a 16 ", sounds interesting.
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Old 01-25-2015, 03:58 PM
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Originally Posted by The Revenge View Post
No.

That's why I have an AR10. The same ammo works in it and my savage out to 850yd.
Thought we were talking AR-15 platforms, not the heavy weight AR-10's, no one is comparing the BO to the .308.
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Old 01-25-2015, 07:20 PM
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I was helping a friends business at the Shot Show last week in Las Vegas. The company is Warrior.co. Here is some pics of the 300 BO guns they had on display. Lowers/Uppers/hand guards/rails/muzzle breaks were made in house by Warrior. BCG was in house design, other components spec'd out but all very high quality. Ambidextrous safeties and charge handles, rapid release triggers, nickel boron bolts, etc
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Old 01-25-2015, 07:21 PM
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More from Warrior.
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