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Posted: 8/10/2011 3:29:18 PM EDT
I've got a 16" Colt HBAR II that I was thinking of sending to Adco to be cut down to 14.5 and have a YHM 5C2 installed.  Anyone have any experience with this?  I just remove the barrel and handguards and ship just the barrel assembly I take it.  Opinions?  Thanks
Link Posted: 8/10/2011 3:35:14 PM EDT
[#1]
should not affect accuracy at all.
Link Posted: 8/10/2011 3:38:07 PM EDT
[#2]
I would remove the FSB as well since they will have to remove it anyway to put it in the lathe, and the FH will not effect accuracy at all
Link Posted: 8/10/2011 3:40:04 PM EDT
[#3]
I asked the same question a while back about sending them a Colt 20in. match barrel, (did'nt want it
cut down, but just the threading and FH) and all said " you won't be able to notice any differance"

kz
Link Posted: 8/10/2011 4:45:23 PM EDT
[#4]
Do you have to pin it or weld it ? I like to change my FH for different applications.
Link Posted: 8/10/2011 5:26:20 PM EDT
[#5]
Anytime you mess around with a barrel you have the potential to screw it up.  Or make it better.  It's a coin toss.
Link Posted: 8/10/2011 5:52:21 PM EDT
[#6]
Quoted:
Anytime you mess around with a barrel you have the potential to screw it up.  Or make it better.  It's a coin toss.


Yes and No to an extent.  Flash Hider should not effect accuracy.  But Murphy's Law always exist.
Link Posted: 8/10/2011 6:05:19 PM EDT
[#7]
a flash hider, probably not. A muzzle brake might.
Link Posted: 8/10/2011 7:25:29 PM EDT
[#8]
You should ask them to put an 11 deg crown on it while they have it.  Most places will do it free since they have to crown it anyway.
Link Posted: 8/11/2011 5:01:24 AM EDT
[#9]
I emailed Wes (MSTN) about building a fairly simple upper. I wanted to pin an A2X to a LMT upper. Not knowing that he specializes in higher-end (accurized) uppers, he responded that an A2 wouldn't be "great" for accuracy, that something like a SureFire or Vortex would be better (in addition to a Noveske barrel). I don't know if he's trying to sell parts, but his response seems to indicate that certain FHs may affect accuracy. In any event, I wanted a simple upper and decided to get one elsewhere.
Link Posted: 8/11/2011 5:45:49 AM EDT
[#10]
Remember, If you get it cut to 14.5", the flash hider will have to be pinned in welded for it to be legal.

Original question... No it will not effect accuracy
Link Posted: 8/11/2011 7:58:08 AM EDT
[#11]
On a .22lr rifle it will definitely have an effect. I don't know first hand about .223 and 5.56. And just note that most target shooters do not have muzzle devices attached to the end of thier barrels.
Link Posted: 8/11/2011 8:34:29 AM EDT
[#12]
Link Posted: 8/11/2011 9:10:51 AM EDT
[#13]
Quoted:
Quoted:
Anytime you mess around with a barrel you have the potential to screw it up.  Or make it better.  It's a coin toss.


Yes and No to an extent.  Flash Hider should not effect accuracy.  But Murphy's Law always exist.


Then there is the possibility that the personality of the barrel will change a little.  Where it ends up more or less accurate with certain loads, but has not really lost or gained any accuracy potential overall.

Most people (including me) won't notice, most of those who would or could notice, probably won't care, and most of those whose lives would be deeply affected by this sort of thing would likely be working with something different altogether.  

Having your gun cut down and pinned and made that much more handier (I loves me 14.5"+vortex) is going to far outweigh any accuracy gained or lost.  

I would ship the entire assembly, or at least all the parts that are going to need to be on there if the FH is getting permanently installed.
Link Posted: 8/11/2011 5:17:31 PM EDT
[#14]
Quoted:
a flash hider, probably not. A muzzle brake might.


How so?
Link Posted: 8/11/2011 7:04:32 PM EDT
[#15]
Hey led heads,

Robert here......i just bought my buschmaster 3f .223/5.56 patrol orc Quad. Im new to Buschmaster and would like to know more like...... what is the "3f" mean and "patrol orc quad" mean????? havent shot it yet. Is Remmington ok to shot threw this brand new gun?
Link Posted: 8/11/2011 7:16:48 PM EDT
[#16]
Quoted:
Hey lead heads,

Robert here, I just bought my Bushmaster [3F] .223/5.56 Patrol ORC Quad. I'm new to Bushmaster and would like to know more like, What is the 3F mean and "Patrol ORC Quad" mean? [I] haven't shot it yet. Is Remington okay to shoot through this brand new gun?


Remington is okay to shoot in a Bushmaster. Bushmasters are chambered in 5.56. (It is stamped on the barrel)

O= Optics
R= Ready
C= Carbine

Patrol= ???

Quad= 4 sided free float rail forearm?

3F= A3 (flat top)
Link Posted: 8/11/2011 7:22:28 PM EDT
[#17]
And this has what to do with the or gal question ?
Link Posted: 8/11/2011 7:32:13 PM EDT
[#18]
Quoted:
And this has what to do with the original question ?




Just lending a helping hand to the FNG.
Link Posted: 8/11/2011 7:42:24 PM EDT
[#19]
Helping hand might be not aiding in a Hi-jack.
Link Posted: 8/11/2011 7:51:42 PM EDT
[#20]
Quoted:
Helping hand might be not aiding in a Hi-jack.


Nice welcome.  .
Link Posted: 8/11/2011 8:06:23 PM EDT
[#21]
Quoted:
Quoted:
Helping hand might be not aiding in a Hi-jack.


Nice welcome.  .


Yup.  You are right.
Let's get back to the OP's originanal question.

You can reload AR15 ammo
Link Posted: 8/12/2011 5:29:58 AM EDT
[#22]
Quoted:
Quoted:
a flash hider, probably not. A muzzle brake might.


How so?


When i went from a FH to a SJC Titan, I had to adjust elevation for the extra drop. The drop was about an inch at 100 yds. Several other shooters at my club noticed the difference as well. Maybe due to the loss of and/or disruption of gas at the muzzle. YMMV  I did not notice any change with a Miculek brake on another set up.

Link Posted: 8/12/2011 12:07:08 PM EDT
[#23]
Quoted:
Quoted:
a flash hider, probably not. A muzzle brake might.


How so?


The generally more constrictive bore diameter of a muzzle brake, in addition to the nature of having plates of metal that can deflect gas around and into a bullets path if not designed well. A MB that has one side closed and another open can reflect into the tail of a bullet before it exits the brake, resulting in slight instabilities. A concentric brake, or one that has sufficient clearance on the closed side to delay the gas deflection will generally have no problems.

Sometimes when drilling a barrel for a pin, if there isn't sufficient wall thickness, the force of drilling/milling will displace metal into a hump protruding into the bore, which can have a noticeable or negligible effect on accuracy.

Link Posted: 8/12/2011 4:51:30 PM EDT
[#24]
TIGGER
When you changed from a FH to a brake did it actually affect accuracy or just change the POI?

sbh
That's part of the reason I won't use a brake.   Some of the super mags to 50 BMG I can see it.  For anything smaller.  No.

I think a threaded muzzle gets screwed up most by being not concentric and improper torque than anything else.
Link Posted: 8/12/2011 6:45:37 PM EDT
[#25]
i have read of several tests where a pronged F/H [ blackout/vortex ]  actually aided accuracy, over an A2. this was not personally verified by me, but, when i has ADCO pin one on my 14.5'' upper i went with a  black-out.
Link Posted: 8/12/2011 7:20:10 PM EDT
[#26]
Quoted:
i have read of several tests where a pronged F/H [ blackout/vortex ]  actually aided accuracy, over an A2. this was not personally verified by me, but, when i has ADCO pin one on my 14.5'' upper i went with a  black-out.


Wonder why  the buller manufactures haven't caught on to these?
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