CL barrel runners, what do you have stamped on your barrel? .308 or 7.62 NATO?
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Senior Member
CL barrel runners, what do you have stamped on your barrel? .308 or 7.62 NATO?
"People have always been stupid. The Internet just makes it easier for us to know about them." - donlapalma
Senior Member
MP 7.62 NATO 1/10 CBOriginally Posted by Boba Fett v2
To educate a man in mind and not in morals is to educate a menace to society. --Theodore Roosevelt--
Senior Member
Same.
"When governments fear the people, there is liberty. When the people fear the government, there is tyranny. The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government." Thomas Jefferson.
Member
MP 7.62 Nato 1/10 CB
Senior Member
Same.
I would think if the receiver said 308, as I think my last one did, the barrel would say the same. Barrel and receiver should match. But I don't know that.
PB
"Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"
Member
Anyone running one of the lightweight stainless barrels yet? What kind of accuracy are you getting and how much are the groups opening up when the barrel heats up?
Update with pic of the new addition before the laws change out here
Last edited by Emtothedee; 12-04-16 at 20:27.
Senior Member
All,
I didn't want to start a whole new thread so here goes. I saw something interesting while at the range the other day. I swapped out my 16" CL barrel for my 18" CL barrel. There was a large and noticeable POI shift using plane Jane GI ball ammo (Fed XM80). The 18" barrel was shoooting really low. Air temp was typical seasonal winter temp compared to warm summer temp but I didn't really feel that that was a huge factor. Has anyone seen large POI shifts when switching barrel lengths??? I can't figure out why the 18" barrel would be shooting low......shooting high, I can understand......more barrel length, more speed, etc....
I checked the barrel carefully.....the 16" barrel has the SF warcomp on it and the 18" barrel has a SF brake on it. Again, not sure if that would be a factor. The barrel was torqued properly using the LMT pre set wrench. The scope was was not loose and is mounted in a Larue SPR 1.5 (LT120 I believe).
Any ideas would be helpful. Thanks.
Last edited by duece71; 12-07-16 at 10:53.
Senior Member
Different barrel have different POI. No big deal. It could weigh more ? It could shoot other ammo higher than the 16 incher.
I would swop back and forth same day , same AMMO to be sure.
I wouldn't worry. Your good to go.
PB
"Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"
Member
The grouping was similar with either barrel?
How many inches lower?
My first thought would be the harmonics between the two barrels changes POI.
Senior Member
Yes, group size between the 16 and 18 were the same. Bullets were hitting dirt...short of the target at 100yrds. At least 5-6 inches low. The scope in use is the NF SRV 4-14x50.
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