1911 nosediving when dirty.

[banjoboyjohn]

i have a RIA 1911 tactical and after i fire ~60 rounds of WWB, i start getting nose dives into the feed ramp. when i clean it the problem goes away. it is a somewhat new gun (less than 300 rds), but have never known a nose dive, to be a typical break-in malfunction. is this typical of 1911's with tight slides or should i send it back to armscor? none of my GI's have done this.

 

[banjoboyjohn]

well actually it's more like 70 rounds before it malfunctions..

 

[HM2PAC]

Is the gun stock, or have you made any mods?

What mags are you using?

 

[banjoboyjohn]

i had to send it back to the factory for repairs so it is not stock. before i sent it back, it wouldn't chamber the first three rounds.

 

[RONSERESURPLUS]

send it back again, they need to replace or re-work it, thats un-usual for RIA guns they usually run no issues,what sort of ammo is it? Who maks check the Length against other fmj?

RON

 

[Old Fuff]

See if it mostly does this when the magazine is almost empty. I suspect that you need a different magazine or magazine spring. It appears that the slide is hitting the cartridge's rim too high, causing the bullet's nose to go down.

 

[banjoboyjohn]

it's doing it on the first round of an 8 round ACT and Mec Gar mag, but only when it's dirty. ammo used is wincester white box. i measured the OAL of the rounds and they are fine. so i should send it back again?

 

[banjoboyjohn]

the magazine is fully loaded when it happens. the bullets are getting seated back in the case when it feeds.

 

[HM2PAC]

Yeah, I think you need to send it back again. This shouldn't be happening.

 

[robmkivseries70]

Polish the feed ramp using very fine emery paper.
Best,
Rob

 

[banjoboyjohn]

the gunsmith at the factory has already polished it. i'll give them a call.

 

[RH45]

Could be an overly tight extractor.

 

[banjoboyjohn]

could be. i don't think it's making it to the extractor tho. usually the extractor will cause a stem bind. i need to reproduce the malfunction and see if it is the extractor. i'm gonna shoot it some today and find out. the smith told me to just use a heavier recoil spring, but that only covers the problem up. it doesn't fix it.