Understanding Beretta Nano FTE issues

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Levan9X19

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Greetings to everyone. I have some interesting points to share with you considering the rumors about Beretta Nano's failing to extract issues. I always thought that stories shared on gun boards are statistically insignificant but not in this case. recently I picked a brand new Beretta Nano, went to the range and loaded it with my practice ammo, Magtech 124gr FMJ. This load proofed itself to be reliable and accurate and so I wasn't expecting problems (Beretta also is a respected company you can trust to). I got 5 FTE in 100 rounds.

I spent several hours in internet researching the problem and after I understood that FTE seems to be a common problem for Nano, my initial plan was to return weapon to the guns shop and replace it with CZ Rami, but I liked Nano and decided that although it doesnt run with my practice ammo it should work with some defensive loads and after all you are not supposed to run it like your average high volume blaster (customized Glock 17C in my case) I mean carry a lot shoot less (with quality defensive loads only) concept. I can afford practicing it with relatively more expensive 147 defensive loads as many Nano owners usually recommend. BTW ammo availability is a bit of a problem in my country and usually you have three maximum 5 loads available and most of them are loaded with FMJ bullets.

I am in handguns for almost 10 years and I think I do understand how they work and so I tried to do some research and analyze what is the source of FTE problem in Nano pistol. Why it doesn't work with light bullets but tend to work with heavier ones. I think we have problem with extractor lift and rapid drop of pressure in barrel. Nano has very small barrel. While firing cartridge, slide of the pistol experiences something like heavy blow from a hammer, and extractor might lift or bounce in its place. At the same time the pressure in short barrel drops very fast as the bullet leaves it in very short period of time, so the pressure is not pushing the brass against the breach face while slide moves back and at the same time extractor has lifted (due to vibration or rapid slide acceleration) and jumped over the rim of the spent case leaving it in the chamber. That is how typical FTE looks in Nano pistol. The rim is intact (not ripped by extractor), case sits in chamber. I think lifting of extractor caused by the rapid slide acceleration is a source of the problem, because FTE are more likely if you load a round and insert an empty mag (purely my observation based on relatively small amount of rounds fired). It means that magazine spring tension is not transferred to slide by means of column of rounds in the magazine and slide accelerates even faster increasing the like hood of FTE occurrence. Usage of heavier bullets might decrease the slide acceleration and allow the pressure to stay high in barrel for just enough time for case to remain pressured against breach face while extractor settles (or remains on rim all the time without lifting) and grips the rim of the case.

As described by Nano owners, Beretta usually polishes the chamber and replaces the extractor and the spring so if someone will post pics of the new and old extractors and springs this might quickly explain the nature of FTE problems with Nano's.

Some report zero problems with currently produced Nano's, I dunno the production date of my pistol but serial number starts with NU 097XXX.

We here dont have the opportunity to test Beretta's customer service so we have to seek other solutions. Polishing chamber is not a problem. It is also possible to increase the tension of extractor spring, but I think somehow decreasing the slide acceleration might also work (heavier return spring?).

Excluding FTE's Nano is a great little pistol with superb ergonomics and I am committed to cure and keep it.

Anyway I will post about any progress in overcoming FTE issues with my Nano and will also appreciate input form other forum members.
 

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I don't own a Nano but there are a couple of them accessible to me thru our local group of range/training buddies and I have shot both of them and discussed them with their owners. I own a Pico - not sure if they are similar mechanically. I do know the Nano is striker fired and the Pico is hammer fired.

Both of the Nanos I have shot were flawless for me with Winchester White Box and my hand loads but I do know the owners had a break in period with several malfunctions. Instead of sending them back to Beretta they just racked the guns repeatedly to simulate a break in and continued to shoot them. At 250 - 500 rounds all the problems disappeared and both the guns have performed flawlessly since then.

I know that my Pico was extremely oversprung and tight when it arrived and after about 500 racks and dis assembly and lubing with Breakfree I went to the range and banged out 250 flawless rounds. I wonder if maybe your Nano needs a break in period, how many rounds you have fired, and if maybe it might benefit from some slide racking and dry firing with Snap Caps?

I'm sure some Nano owners/Operators will be along shortly with better advice.

VooDoo
 
installed slightly longer rod which supports extractor spring. polished chamber. heading to the range tomorrow. fingers crossed.
 
When the case stays in the chamber like that, there are a few contributing factors.

The thing about a locked breech pistol, the extractor has to actually work to get the case out. It doesn't just slide/drop out, like what you experience when you clear said jam. The case hasn't fully contracted away from the sides of the chamber, so the extractor has to forcefully pull it out, to some degree.

A lighter bullet makes the slide move less, so to speak. So the gun stays locked longer. The brass contracts more by the time the extractor is called upon to rip out the case. A heavier bullet and slower powder should make this problem worse, in general. Of course, lighter bullets might be loaded relatively hotter, and vice versa, so it depends on the load.

rapid drop of pressure in barrel. Nano has very small barrel.
Rapid pressure drop is a good thing. Pressure doesn't push the brass back/out in a locked breech gun. Pressure is the enemy of extraction. The problem is either extractor design and/or the action unlocking early while pressure is still high. Which might be expected in a small pocket pistol that has been designed to be as small/light as possible. It's highly likely that is just has less room for error, and extraction is one of the first problems that arises on the hot side. Weaker ammo will likely extract more reliably, particularly with lighter bullets and faster powders.
 
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My brief time with a Nano showed me how prone the design was to limpwristing. My wife had real trouble shooting that pistol because of that. With the extended magazine it was fine, but who wants to carry a "nano" gun with an extended magazine?

Anyhow, it shot fine for me, but I keep a firm grip. I just believe the grip to slide ratio was not quite right. I think they tried to go a bit too short on the grip considering the pressure required to feed and function.
 
I'm over 2,000 rounds through mine and have yet to have a failure. Steel, brass and aluminum, and weights from 105gr up to 147gr. I have no doubt that some Nanos have had issues but mine has worked perfectly.

I hope you get the issues sorted out.
 
so far so good. no jams at all. I might say: problem solved. extended rod supporting extractor spring and polishing chamber actually worked :)
 
Rapid pressure drop is a good thing. Pressure doesn't push the brass back/out in a locked breech gun. Pressure is the enemy of extraction. The problem is either extractor design and/or the action unlocking early while pressure is still high. Which might be expected in a small pocket pistol that has been designed to be as small/light as possible. It's highly likely that is just has less room for error, and extraction is one of the first problems that arises on the hot side. Weaker ammo will likely extract more reliably, particularly with lighter bullets and faster powders.

I have to disagree. please find the presentation named "understanding the extractor lift in M16/m4 weapons". They coupled two M4-s, and connected gas tube from weapon 1 to weapon 2. Live cartridge was fire from weapon 1 and caused the bolt on weapon 2 to accelerate and cycle just like when firing the live round but without building pressure in the chamber and barrel. carbine failed to extract each and every time because extractor lifted (due to acceleration of bolt) and pressure was not supporting brass against bolt face, thus when extractor settled the brass was not simply there and was left in chamber. This study in particular led me to conclusions which I stated above. So saying that pressures is an enemy of extraction is not right. I also remember firing .22lr ammo out of russian semi auto (Margolin Sport Pistol) and discovered it has no extractor in place. Nevertheless it worked just fine. Pressure was aiding in extraction. at least in some cases
 
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I said "in a locked breech gun." To further clarify, I meant a recoil-operated locked breech gun, such as most all modern semiauto handguns. (I'm assuming the Nano is a locked breen gun, BTW.)

I also remember firing .22lr ammo out of russian semi auto (Margolin Sport Pistol) and discovered it has no extractor in place.
Blowback pistols will often work just fine with no extractor. Beretta makes a 22 with no extractor, at all.

I am not sure how you can extrapolate a test of a gas-operated AR-15 to handguns, in general. Maybe you know something specific about the Nano that might make this apply.
 
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I said "in a locked breech gun."

sorry didnt pay attention to this part. my mistake

I
am not sure how you can extrapolate a test of a gas-operated AR-15 to handguns, in general. Maybe you know something specific about the Nano that might make this apply.

yeah they are both firearms, and utilize the same method of extraction by means of a claw.

The problem with Nano is that it works with heavy bullets and doesnt work with lighter ones. so obviously this (A lighter bullet makes the slide move less, so to speak. So the gun stays locked longer. The brass contracts more by the time the extractor is called upon to rip out the case. A heavier bullet and slower powder should make this problem worse, in general. Of course, lighter bullets might be loaded relatively hotter, and vice versa, so it depends on the load.) doesnt explain anything

Once again example with Ar15 proofed that such thing as extractor lift due to the acceleration indeed takes place. and barrel pressure plays a positive role in aiding extraction. So I thought the same is here, due to the short barrel pressure drops quickly and stops aiding in extraction.

anyway the problem is cured.
 
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