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Discussion Starter · #1 ·
I was wondering if anyone has tried or considered having their XCR heavy barrel fluted?
Any recommendations on who to send the barrel to for the fluting?
Thanks in advance for your replies.
 

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That would a be nice touch. Any gunsmith with a machine shop could probably do it. The only problem would be matching the barrel finish. But seeing your art work, I don't think that would be a problem with you.
 

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Discussion Starter · #3 ·
Thanks man. I plan to finish the barrel in matte black after I get it fluted. The upper and furniture are OD green.
 
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I read today that the flutiong does not add any stiffenss, causes uneven heating and can affect the barrel harmonics due to the additional machining. I beleive that there were some issues that Robinson had with these in thier current production.

anybody verify this?
 

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Fluting done wrong is a complete disaster. If it's done right, it can add stiffness, aid in heat dispersal, etc. If it's done wrong, then it will screw up the barrel's accuracy bigtime.

I have two guns with a factory fluted barrel. One is a Blaser and shoots extremely well. The other is a Steyr Scout and it's shockingly accurate. I would NOT have a barrel aftermarket fluted. Those two guns just happened to have factory fluted barrels and you didn't have any choice in the matter. It's the only way they made them.

Personally, I just as soon not have it. But that's just my opinion.
 

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hey people, somewhat of a newb question....anyone know where i can see a side-by-side comparo of the light vs. heavy barrel on the XCR? i know about the benefits vs. drawbacks of heavy, but would like to see what a robinson arms "heavy barrel" looks like :eek: before i buy. thanks!
 

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You can check out the Gallery section of this forum, and you should see a selection of light and heavy barrels.

This is my SBR XCR with heavy barrel: http://xcrforum.com/index.php/topic,330.0.html

and others: http://xcrforum.com/index.php/topic,5.0.html

Also, when I asked Chuck of RobArm the question of how much more does the heavy barreled version weigh over the light barreled version, he put both on the scales for me then and there. How's that for customer service: The results were:

XCR light barrel = 7lb 4oz.
XCR heavy barrel = 8lb 0oz.

I hope this helps you with your question.
 

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Ah hah! I've actually looked at that photo before. Should've noted the caption. Thanks Roy.

12 oz. heavier, huh? Damn. According to Ty, the heavy is 6 oz. heavier, which just about had me sold on it. First, it looks bad (though no fluting is a bummer), and second, the heavies are only backed up 2 wks. whereas the lights are backed up 6 WKS.

Choices choices.... :-\
 

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Well, I wasn't rying to shoot down what Ty or anyone else has told you. When I called Chuck had the two rifles in front of him and he put them both on the scales at the same time. That was the results???

IMHO a rifle that carries a little more weight helps with control. You should feel my Remington 700 Police sniper rifle! That is heavy, but a very stable machine!
 

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hello, new to forum here and was wondering what the advantages of a heavy barrel over a light where? thanks
 

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Heavy barrels heat up a bit more slowly and tend to be stiffer per given length.

Conversely, they cool down more slowly and, of course, weight more.
 

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No prob at all. I sent tzoid an email asking if he could kindly weigh his two barrels and let us know. I'll post here if he writes back.

pius, from what I understand, a heavier barrel obviously makes the weapon more front-heavy, thereby reducing muzzle flip and yielding more accurate follow-up shots. Don't know how significant this is for the average shooter though.

Take a look at this article http://www.chuckhawks.com/rifle_barrel.htm for some more info on barrels.
 

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That's true - but a heavy barrel also handles slower (more momentum to overcome) and causes fatigue faster when held on target or at the ready for longer periods.

IMO, the thing to look at is the expected (note, that's expected) use. Let's say you're using GI or similar ammo, and position shooting. Right there, we're lucky to have a 2 MOA standard at any realistic distance - more than likely at mid range we're closer to 4 MOA (keeping rounds on a siloughette -but that's about all- at 600).

Would the difference between a heavy and a light barrel be noticable in that circumstance? Nah.

Now let's say you're going to be using match grade ammo and shooting from your ruck or bipod. NOW you're going to be running much tighter groups, and the heavy barrel might be worth it. But the next question would be: why would you be doing so with a carbine?

If you want to run an XCR in the SPR role with magnified optics, I can understand the heavy barrel. If you're going to run it with an Aimpoint / EoTech / etc mostly from offhand or position shooting with a sling, the heavy barrel just doesn't matter.

FWIW, the one I just ordered ALSO has a light barrel.

To make things a bit more complex, I don't believe the barrel that came on my others (light barrel, 16") really is a light contour. I believe it's more of a sporter contour - a touch heavier than say the pencil thin barrels of the Colt SP1 and such. And, in all honesty, a touch heavier than I'd prefer in the XCR. So by my reasoning, the XCR "lightweight" barrel is really closer to a "government weight" or "sporter weight". Inbetween. As that's a touch heavier than I prefer for a carbine, that's what I stick with ;-)

As always, YMMV.
 

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All good points, thanks bravo.

My likely application includes mostly humping it from pt A to pt B, rifle in a sling, shooting on the move; doomsday, SHTF, riots, whatever it may be. I am planning on training for this purpose, so there will be minimal bench shooting. I suppose the light barrel would be most appropriate for me then, esp. since it sounds like the XCR's "light" may be a bit heavier than the avg. light barrel. Better leave long range stuff to long range guns like using the 7.62 to "reach out and touch someone." Perhaps one day I'll expand to a FAL or an XCR-M, if it materializes.


As long as we're talking about touching.....

:D
 

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Discussion Starter · #18 ·
Well,
I sent it off to ADCO and had it fluted...supposed to be here Thursday.
Hopefully, I'll get to shoot it this weekend...fingers crossed that it shoots well.
 
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