DefensiveCarry Concealed Carry Forum - View Single Post - S&W M&P-15 Exploded

BAC · June 28th, 2009, 12:49 PM

As has already been said, the vast majority of 1:9 twist barrels are not chambered for 5.56 NATO, which is why they get reamed with 5.56 NATO reamers regularly. I know Rock River Arms uses a Wylde chamber that is supposed to be a compromise between .223 and 5.56 chambers and allow the firearm to chamber and fire both safely, but I don't know the details of the Wylde chamber or who all has them on their firearms.

What the manufacturer stamps on the barrel (or receiver) and what they say on their website don't mean a thing.

-B

June 28th, 2009, 12:49 PM	#26
BAC Distinguished Member Join Date: May 2007 Location: Tampa, Florida Posts: 1,994	As has already been said, the vast majority of 1:9 twist barrels are not chambered for 5.56 NATO, which is why they get reamed with 5.56 NATO reamers regularly. I know Rock River Arms uses a Wylde chamber that is supposed to be a compromise between .223 and 5.56 chambers and allow the firearm to chamber and fire both safely, but I don't know the details of the Wylde chamber or who all has them on their firearms. What the manufacturer stamps on the barrel (or receiver) and what they say on their website don't mean a thing. -B __________________ RIP, Jeff Dorr: 1964 - July 17, 2009. You will be missed. Defensive Carry Search Tips Step 1 - Choose a subforum on right side under "Search in Forum(s)" Step 2 - Type general topic of interest in "Search by Keyword" textbox. Step 3 - Read results and refine/repeat as necessary.