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Old 11-16-2013, 05:13 AM   #1
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Default FAL problem

I was shooting a British FAL rifle at the range today, and was using .308 Win commercial ammunition. We were assured by the gunstore that there was no difference between .308 and 7.62x51. I have done some surfing, and found that this is not necessarily true. The .308 is hotter. Today we were finding that the .308's, in spite of having a higher pressure, were not cycling the rifle. the gas system was open,(not on the grenade setting), and the gas regulator was set on "0", the bleed off shut tight. At these settings, there should have been no bleed off of gas on firing, with all the gas going to cycle the rifle. But the rifle only short stroked, I saw the chamber open about 1/2 way with no extraction of the fired round. There were no signs of excessive pressure in the fired cases, except very flattened primers. What is going on here? The inch pattern FAL was put together by DSA using a new receiver and barrel. I probed the gas bleed off hole between the barrel and the gas cylinder, and it is open. Bought some Lake City NATO 7.62x51 rounds, and will try these tomorrow. These have a rated pressure that is lower than commercial levels, so I don't know why they would work better. What am I doing wrong?

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Old 11-16-2013, 09:30 PM   #2
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It is not just pressure, it is also case design. 7.62 X 51 ammo uses a thicker case web. It contains pressure differently. Let us know how the NATO ammo works.

And, dump the gun shop. Idiots trying to get you and your gun hurt

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Old 11-17-2013, 01:01 AM   #3
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The two are different but I would have thought the inch pattern by DSA would have shoot .308 with no problem? Like Robocop said try the 7.62x51 but I would also check with DSA. Good luck.


And I'm not going to mention how long I spent trying to figure out why my FN49 wasn't cycling while it was on the grenade setting.

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Old 11-17-2013, 03:20 AM   #4
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I found some Federal XM80C 7.62 rounds. Turns out that they work, and were cheaper than the Ammo that I bought with the rifle. The Federals carry the Lake City head stamp with the NATO mark. I have seen it said on the internet that there is no difference between 7.62 NATO and .308 WIN. I have to say there is. My FAL continued to fire as I turned the gas bleed off completely open, it just didn't toss the empties as far. Thanks for the help

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Old 11-18-2013, 07:22 PM   #5
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Default Don't buy this crap

This is some 7.62 NATO you can pass on. It is inconsistent in function, and is very dirty which is probably due to poor storage. Had to wipe a thick layer of dust off them. In this case they were too expensive as well. The headstamp dates the rounds to 1970

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Old 11-18-2013, 09:01 PM   #6
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What commercial .308 rounds were you using that you had problems with?

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Old 11-18-2013, 10:39 PM   #7
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What commercial .308 rounds were you using that you had problems with?
DOC, FMC 150gr FMJ and Federal .308 !47gr FMJ. Neither would cycle with the gas regulation set to use all available gas. They would extract and eject with the magazine out. I have found some better Federal 7.62 XM80C that function with the gas wide open. And they are $2 cheaper. By the way, the AR guys on the AR picture thread won't let me play with them. Hey, my rifle is black too..
dscf1123.jpg   dscf1126.jpg   dscf1127.jpg  
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Old 11-18-2013, 10:59 PM   #8
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I have a bit of 7.62x51 in bandoliers from the early to mid 1970's I'd be happy to sell you. Shoots like sh!t in my Howa. LC and IMI are tops. Got battle packs of those also. If the pressure is too high, you are hammering the receiver. I would be happy to send you a box of 3 different 7.62x51 for you to test in your rifle. Shipping costs though. I shoot a lot of MEM and DAG headstamped german 7.62x51. They are good, not great. The ammo in bandoliers I have is 1972 and '73 Indian M80 ammo. It is hot. I have read about issues w/ 1980's or '90's Indian M80 ammo having issues. This stuff just is not accurate enough for me.

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Old 11-18-2013, 11:18 PM   #9
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Originally Posted by HM2Grunt View Post
DOC, FMC 150gr FMJ and Federal .308 !47gr FMJ. Neither would cycle with the gas regulation set to use all available gas. They would extract and eject with the magazine out. I have found some better Federal 7.62 XM80C that function with the gas wide open. And they are $2 cheaper. By the way, the AR guys on the AR picture thread won't let me play with them. Hey, my rifle is black too..
Interesting. I had a Century built L1A1 at one time, that fed 7.62 NATO surplus of many flavors, along with me feeding several brands of .308 through it (I didn't know any different, back then, and the rifle didn't seem to either.)

Maybe not too surprisingly, it really liked some surplus British ammo, along with some Spanish and German stuff that I had bought in battle packs.

I think it did alright with the .308 largely because I could adjust the gas to the point of getting reliable but not violent ejection. Another rifle I regret selling.
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Old 11-19-2013, 03:23 AM   #10
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I have a bit of 7.62x51 in bandoliers from the early to mid 1970's I'd be happy to sell you. Shoots like sh!t in my Howa. LC and IMI are tops. Got battle packs of those also. If the pressure is too high, you are hammering the receiver. I would be happy to send you a box of 3 different 7.62x51 for you to test in your rifle. Shipping costs though. I shoot a lot of MEM and DAG headstamped german 7.62x51. They are good, not great. The ammo in bandoliers I have is 1972 and '73 Indian M80 ammo. It is hot. I have read about issues w/ 1980's or '90's Indian M80 ammo having issues. This stuff just is not accurate enough for me.
Thanks JP, but I am also looking for something accurate too. I like the FAL, but the rear sight moves too much, and I may just scope it. Thanks for the offer though. Appreciated your reply.
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