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.
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Return to “WTS - BRAND NEW IN BOX BUSHMASTER ORC”
- Sat Aug 08, 2009 10:07 pm
- Forum: Closed Items
- Topic: WTS - BRAND NEW IN BOX BUSHMASTER ORC
- Replies: 29
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Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
- Sat Aug 08, 2009 12:56 pm
- Forum: Closed Items
- Topic: WTS - BRAND NEW IN BOX BUSHMASTER ORC
- Replies: 29
- Views: 5872
Re: WTS - BRAND NEW IN BOX BUSHMASTER ORC
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.