Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Fri Jun 26, 2009 1:54 am
I will through in a Brand New Eotech 5.11 for an extra for $250
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WTS - BRAND NEW IN BOX BUSHMASTER ORC
Page 2 of 2
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Thu Jul 02, 2009 10:30 am
PM sent
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Mon Jul 20, 2009 1:12 am
Still for sale!
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Thu Jul 23, 2009 9:57 pm
PM sent.carlson1 wrote:Still for sale!
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Mon Jul 27, 2009 2:10 am
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Mon Jul 27, 2009 3:56 pm
SPF 
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Mon Jul 27, 2009 4:46 pm
Forgot to ask what caliber? .223 or 5.56?carlson1 wrote:Still for sale!
Chuck
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Mon Jul 27, 2009 4:55 pm
rocco7869 wrote:Forgot to ask what caliber? .223 or 5.56?carlson1 wrote:Still for sale!
Chuck
It will take both.
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Sat Aug 08, 2009 12:13 am
Deal Did Not Go Through...
Steal Available.
Steal Available.
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Sat Aug 08, 2009 9:54 am
So then it's 5.56?carlson1 wrote:rocco7869 wrote:Forgot to ask what caliber? .223 or 5.56?carlson1 wrote:Still for sale!
Chuck
It will take both.
You can shoot .223 in a 5.56 rifle, but you should not shoot 5.56 in a .223 rifle, as .223 specs are tighter then 5.56. 5.56 has more 'wiggle room'.
5.56 is also a higher pressure round, And shooting a 5.56 round in a .223 rifle will exceed a .223 pressure rating every shot, possibly causing catastrophic failure.
From Wikipedia:
And I know WP is not a 100% reliable source, so here's a few more sources:While the external case dimensions are very similar, the .223 Remington and 5.56x45mm differ in both maximum pressure and chamber shape. The maximum and mean pressures for some varieties of the 5.56 mm (different cartridge designations have different standards) exceed the SAAMI maximums for the .223 Remington, and the methods for measuring pressures differ between NATO and SAAMI.[2] The 5.56 mm chamber specification has also changed over time since its adoption, as the current military loading (NATO SS-109 or US M855) uses longer, heavier bullets than the original loading did. This has resulted in a lengthening of the throat in the 5.56 mm chamber. Thus, while .223 Remington ammunition can be safely fired in a 5.56 mm chambered gun, firing 5.56 mm ammunition in a .223 Remington chamber may produce pressures in excess of even the 5.56 mm specifications due to the shorter throat.[3]
Direct from SAAMI Themselves:
http://www.saami.org/Publications/2006U ... ations.pdf" onclick="window.open(this.href);return false; <- Scroll down to page 7.
http://www.thegunzone.com/556v223.html" onclick="window.open(this.href);return false;
http://www.stormfront.org/forum/showthread.php?t=144981" onclick="window.open(this.href);return false;
Just trying to throw out some education for some folks, as I've seen it as a widely held myth that both .223 and 5.56 can shoot each other's ammunition safely.
So, Back to the OP's question, what caliber is it? (What's actually stamped on the barrel?)
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Sat Aug 08, 2009 12:56 pm
I have a Bushmaster 24" Varminter. You can't see what is stamped on the barrel - if anything - because of the free floating hand guard. However, on the left side of the lower receiver, it says "CAL. .223-5.56MM". However, THIS FAQ PAGE on the Bushmaster website says:dicion wrote:So, Back to the OP's question, what caliber is it? (What's actually stamped on the barrel?)
Emphasis mine...All Bushmaster rifles are chambered to accept 5.56mm ammunition and always have been. The NATO Spec 5.56mm chambers have a longer "leade" or throat than the SAAMI Spec .223 caliber chambers which have about half of the leade or throat of the 5.56mm chambering. While it is safe to fire both 5.56mm and .223 caliber ammunition in our rifles, the 5.56mm ammunition should not be fired in rifles chambered in .223 caliber as they will develop very high pressures.
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Sat Aug 08, 2009 3:15 pm
Good to know that All Bushys are 5.56.
LMT is like that too, Thats what my upper is
LMT is like that too, Thats what my upper is
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Sat Aug 08, 2009 9:37 pm
I'm by no means an expert on any of this, but I believe the chambering used by Bushmaster (and others) is a "Wylde chamber" that was specifically designed to accept both 5.56 and .223 cartridges. I think - but don't know for sure - there are some rifles out there that will accept ONLY 5.56 and not .223 and vice versa.
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
Posted: Sat Aug 08, 2009 10:07 pm
I don't think so. Wylde chambering is found in Rock River Arms rifles. Bushmaster themselves say their rifles are chambered in 5.56. There's no reason why they would make that claim if it weren't true.austinrealtor wrote:I'm by no means an expert on any of this, but I believe the chambering used by Bushmaster (and others) is a "Wylde chamber" that was specifically designed to accept both 5.56 and .223 cartridges. I think - but don't know for sure - there are some rifles out there that will accept ONLY 5.56 and not .223 and vice versa.
SOLD
Posted: Thu Aug 20, 2009 7:18 pm
SOLD