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Old 09-27-2012, 03:01 AM   #31
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So is 6.8 spc a better long range round?

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Old 09-27-2012, 12:29 PM   #32
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Yes but the 6.5 Gredel is even better. 6.8 can reach out to 600 yards but the 6.5 will go even further.
There are fewer options in 6.5 unless you build your own upper and reload but it is much more accurate.

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Old 09-27-2012, 03:49 PM   #33
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Everything has it's trade offs.
The pluses for the 300 AAC Blackout are many, for the most part its just a regular AR/M4 with a different barrel that is in .30 cal. The negatives are the limitations (good old Issac and his laws) of pressures and mass. But these work well with sub sonic loads. (I don't do SBR or suppressed and still like the 300)
The 6.8 SPC side steps some of the limitations (a little) with a combination of pressures being exerted on a smaller area.
The 6.5 G does this even better.
The negatives for both the 6.8 SPC and 6.5 G include but are not limited to; magazines, bolts, source brass.

If I were rich and wanted to maintain my AR lower and was going to hunt in the wide open spaces, like Montana or Wyoming or well you get the idea, I most likely would go for the 6.8 SPC.
If I were rich and wanted to poke holes in targets at 1000 yards and use an AR lower, I would go with the 6.5 G.
This does not mean that either can't do the job. And for that matter the 300 Blk could do it too but not by me.

If I want the best for long range hunting, I would not limit myself with an AR lower. Like wise, if I want to poke holes at very long ranges, an AR lower would not be my first choice.
But to dispatch big pigs at ranges like I have around home, any of the three would do it very well. And the 300 BlackOut is not as taxing in the process.

One of these days I will find my final load for my 300 BlackOut and move on. Maybe a 6.8 SPC or 6.5 G or ?

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Old 09-28-2012, 05:33 AM   #34
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SBR question? If I buy a SBR barrel can I build my rifle without a buttstock until the tax stamp goes through. Is this correct?

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Old 09-28-2012, 06:09 AM   #35
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Quote:
Originally Posted by GREGULON View Post
SBR question? If I buy a SBR barrel can I build my rifle without a buttstock until the tax stamp goes through. Is this correct?
Yes you can. Some people including me built using the pistol buffer tube. And my 2nd registered AR pistol has the rifle buffer tube on it. DO NOT ever install the stock eventhough nobody knows about it.. or eventhough you just wanted to see how it looks like with the stock. Once you install the stock..*Poof* tinkerbell does the work.

Have a look at this supporting document from ATF.

http://www.kwikrnuarms.com/BATFE%20opinion%20letters/batfe%20atf%20edited%20letter%20and%20response%209-11-11%2012-23-11%20buffer%20tube.pdf

http://www.kwikrnuarms.com/batfe_letters.htm

Hope it helps.
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Old 10-02-2012, 08:14 AM   #36
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So then can I plan to build a SBR and start the paper work and just build the rifle with a regular 16" and cut it when the paperwork is done?

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Old 10-02-2012, 09:00 AM   #37
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You want to cut your existing16"? Make sure you know what is the SBR barrel length to be as you will fill it out on the form. And as i said no stock attached regardless you are using the pistol or rifle tube.
Anyone please correct me if i'm wrong. And please feel free to call ATF just to be sure.

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Old 10-02-2012, 07:50 PM   #38
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Instead of just cutting I would choose the length for example 12.5" and send in the paperwork to the ATF. While waiting the 3 months the rifle would still have a legal 14.5-16" barrel. Then when the paper work went through I would cut the barrel down to 12.5". Is that a possibility?

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Old 10-02-2012, 08:16 PM   #39
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Quote:
Originally Posted by GREGULON
Instead of just cutting I would choose the length for example 12.5" and send in the paperwork to the ATF. While waiting the 3 months the rifle would still have a legal 14.5-16" barrel. Then when the paper work went through I would cut the barrel down to 12.5". Is that a possibility?
It will be at least 6 months, not 3 months. I believe it's possible.
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Old 10-02-2012, 09:23 PM   #40
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Quote:
Originally Posted by GREGULON View Post
Instead of just cutting I would choose the length for example 12.5" and send in the paperwork to the ATF. While waiting the 3 months the rifle would still have a legal 14.5-16" barrel. Then when the paper work went through I would cut the barrel down to 12.5". Is that a possibility?






I DON'T RECOMMEND THIS.

The carbine has a carbine gas setup.

You will need a pistol gas system with a 12"

Having a single shot bolt action AR is no phun T_T

You really have to pay attention to the gassing of a 300 BO. The bullet is so big that there's not too much room for powder in the rest of the cartridge. A 12" with a carbine gas system = bolt action AR. Not so fun.
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