I'm posting for a friend. He has a century arms cetme .308. The rifle has performed well(for the past 300 rds) up until today when it experienced feeding the last few rounds. The action and trigger were cleaned and polished when he received it around 6 months ago. It's feeding the first 10 or so rounds and is ejecting them but is failing to grab the last few. Any tips or advice would be greatly appreciated
Century Arms CETME feeding problems
- Thread starter Gmunny
- Start date
- Status
dprice3844444
member
http://www.hkparts.net/shop/pc/HK-91-HK-G3-Bolt-Group-c113.htm clean the extractor,maybe some residue underneath it.or might have a weak extractor spring
dprice3844444
member
low ammo pressure/recoil spring too strong.clean and grease carrier
tpelle
Member
99% of the time, feeding issues in semi-autos are due to magazine issues - weak springs, out of spec, bent feed lips, dirty, etc. If the CETME was assembled by Century, then it could be just an out-of-spec issue, but if it worked through the first 300 rounds, then it's likely not that.
I'd blame the mags.
CETMEs work best with real CETME mags, usually, which can be distinguished from HK G3 mags by the fact that the CETME mags are curved, whereas the G3 mags are straight.
Thermold plastic mags usually do not work well in CETMEs as a rule.
However, I have an early Century CETME on a cast-stainless receiver that is pretty tolerant of any and all magazines....but I understand that mine is the exception to the rule.
I'd blame the mags.
CETMEs work best with real CETME mags, usually, which can be distinguished from HK G3 mags by the fact that the CETME mags are curved, whereas the G3 mags are straight.
Thermold plastic mags usually do not work well in CETMEs as a rule.
However, I have an early Century CETME on a cast-stainless receiver that is pretty tolerant of any and all magazines....but I understand that mine is the exception to the rule.
amd6547
Member
My CETME works perfectly with HK mags.
- Joined
- Dec 19, 2002
- Messages
- 22,556
Sorry, just read the post that it's ejecting but not picking up the fresh cartridges. Given that the gun is clean, the bolt may be traveling forward faster than the magazine spring can push the follower and cartridge up for the bolt's feed ramp to strip a fresh cartridge from the magazine.
The magazine springs could be worn and replacing them with fresh springs is the remedy.
It could also be that the magazine lips are non-spec such that the cartridge is not presented at the correct angle to the bolt's feed ramp. Compare your magazines that you have experienced problems with against a factory fresh magazine.
Alternatively, it could be that the extraction and ejection is taking up too much energy (or the cartridge is too weak) such that the bolt travel isn't back to the full position of recoil. Change ammunition and see if this is it.
The magazine springs could be worn and replacing them with fresh springs is the remedy.
It could also be that the magazine lips are non-spec such that the cartridge is not presented at the correct angle to the bolt's feed ramp. Compare your magazines that you have experienced problems with against a factory fresh magazine.
Alternatively, it could be that the extraction and ejection is taking up too much energy (or the cartridge is too weak) such that the bolt travel isn't back to the full position of recoil. Change ammunition and see if this is it.
- Status
