Do you shoot re-loads in your UZI?

[OkcPuckfan]

I'd disagree about Blazer

I've seen it used in some pretty pricey transferables but I think it is asking for trouble. The following was copied at the Association of Firearm and Tool Mark Examiners website:
Topic: Aluminum case Blazer ammunition fired in an open bolt gun.

Warning--Don’t fire CCI Blazer ammunition in open-bolt firearms.

Rick Wyant was recently firing one of our laboratory’s 45 ACP MAC-10 machine gun that fires from an open bolt when he began to experience fired cartridge case jamming, as well as a stuck FMJ bullet in the barrel of the MAC-10. An examination of the fired cartridge cases revealed that they had blown case walls.



We surmised that unlike ammunition that is fully supported by the chamber before it is fired, that the round was being detonated before it fully entered the chamber of the barrel. Brass cartridge cases did not have this problem fired in the same gun, but the aluminum casings do not have the same metallurgical properties.

It should be pointed out that this is not a problem of faulty ammunition, rather subjecting the ammunition to a situation that it was not designed for.

Evan Thompson
Rick Wyant
Washington State Patrol

Association of Firearm and Toolmark Examiners
Go to the site for pictures.
Bottom line, I reload because I trust my loads more than any factory loads and I tailor my ammo to my needs. You can do what you like but if you are going to shoot Blazer in your open bolts, please do so a couple of lanes away from me!

'Puckfan

 

[Renegade]

Re: I'd disagree about Blazer

I've seen it used in some pretty pricey transferables but I think it is asking for trouble. The following was copied at the Association of Firearm and Tool Mark Examiners website:
Topic: Aluminum case Blazer ammunition fired in an open bolt gun.

Warning--Don’t fire CCI Blazer ammunition in open-bolt firearms.

It is an anecdotal story, with no scientific evidence. One failure on one gun with one brand of ammunition, that has not been repeated is what, one in a trillion? It is a shame a bunch of engineers would put forth such junk science.

They could post the exact same thing about Brass ammunition. In fact, of the 3-4 guns that have blown up in the last few months and been documented on this forum, all were shooting brass.

 

[SSBiggun]

I have a Vector i bought in 2002 and here 's my 2 favorite load's first is my subsonic .matchmaster 147 fmj rn cci primer F-C brass 3.9 grs WW 231. next is what i call my subgun load .rainer 115 plated rn CCI magnum primer Win brass 8.9 grs Bluedot with the semi buffer cut in half and installed in the back of the reciever the bluedot load cycles at 850-900 rpm+ All data is for informational purposes only and your results my vary.
Thanks for looking

 

[win231]

I frequently use 5.8 Gr. Unique & 124 Gr. Berry's Plated. almost fills case so can't double charge & functions in my semi Mod. A.

 

[chili17]

I load 3.5 of bullseye and a 147gr rainer JHP. I chose 3.5gr because it functions fine and gives me 2000 rounds per pound. For .45 acp (1911s and TSMG) I shoot 200gr rucker LSWC and 6gr of PB.

 

[quizkid]

After reading all of your posts, seems that 3.5 bullseye and 147grain lead is the average load (give or take power types and associated weight). With that as the load, how many reload cycles do you expect out of once fired brass? 8-10 or more?

 

[ColGlock]

After reading all of your posts, seems that 3.5 bullseye and 147grain lead is the average load (give or take power types and associated weight). With that as the load, how many reload cycles do you expect out of once fired brass? 8-10 or more?

No 3.5 of Bullseye is the weak load.

3.8 is the hot load.

My loads of 3.7 of Bullseye measured at around 820 fps out of my 8.5 inch 3-lugged Uzi Barrel. This next batch I am going to 3.8 grns.

 

[amphibian]

My loads of 3.7 of Bullseye measured at around 820 fps out of my 8.5 inch 3-lugged Uzi Barrel. This next batch I am going to 3.8 grns.

I'm surprised the velocity wasn't higher than that.

With 3.8 Gr of Bullseye I got:
Full size UZI 3 lugged barrel - 1038 fps
5" Colt M16 barrel - 978 fps
Beretta 9mm pistol - 92G - 946 fps

 

[Garrett]

I'm surprised the velocity wasn't higher than that.

With 3.8 Gr of Bullseye I got:
Full size UZI 3 lugged barrel - 1038 fps
5" Colt M16 barrel - 978 fps
Beretta 9mm pistol - 92G - 946 fps

The amount of crimp you put on the bullet will make a noticable difference. A tight crimp can shoot quite a bit faster than a cartridge with a loose crimp. Also, you will get differences in barrels, even in identical firearms.

 

[ColGlock]

I'm surprised the velocity wasn't higher than that.

With 3.8 Gr of Bullseye I got:
Full size UZI 3 lugged barrel - 1038 fps
5" Colt M16 barrel - 978 fps
Beretta 9mm pistol - 92G - 946 fps

Well UZI SBR AWC kindly let me use his Chronograph. And it was giving some flaky readings, so it is possible.

In any event, I need to rework the load as I am going to try the Doctor's advice and switch to the Hornady 147grn RN's. they should arrive on Thursday or Friday, along with my can back from a checkup by the Doctor. Unfortunately I may have to use the ear method, to determine if they are staying subsonic.

 

[UZI SBR AWC]

Flaky chronograph

Yea, I'm starting to feel the same way about that green thing. I really think I need to pony up the $$ for a better unit. It is too light sensitive, seems to be fussy about shot placement to be seen by the sensors.

 

[ColGlock]

Yea, I'm starting to feel the same way about that green thing. I really think I need to pony up the $$ for a better unit. It is too light sensitive, seems to be fussy about shot placement to be seen by the sensors.

It could also be that even with the suppressor on, we were too close to the screens.

 

[MuzzleFlash]

Damndest thing happened to me shooting subsonics above tree line Monday (Tree line is about 10,000 feet at my lattitude). I was shooting the FNM 147 gr from a suppressed CX4 rifle into the wind and it was barely going transonic. So I shot it at right angles and it was quiet. Funny how 30MPH of wind speed can come into play when you're on the hairy edge.

 

[RoverDave]

I haven't shot IMI blue tip in a long time and I was surprised at how weak it appeared to be when we shot some at the UT shoot. I need to take a little out to the range and chrono it.

 

[amphibian]

I have been debating whether or not to try to duplicate the IMI 158 grain load and I just don't think its worth it.
I tested some factory IMI 158 gr blue tip and it chrony'd in the 900's. I don't have the results in front of me but I'm pretty sure nothing went over 950 fps from a full size UZI.
To be conservative, if it was pushing 950 fps then muzzle energy is about 317ft-lbs.
While the 147 gr Bullseye load at 1038 fps works out to about 350ft-lbs.

 

[jwp]

yes 130 gr lead with bullseye

 

[MuzzleFlash]

I'm surprised the velocity wasn't higher than that.

With 3.8 Gr of Bullseye I got:
Full size UZI 3 lugged barrel - 1038 fps
5" Colt M16 barrel - 978 fps
Beretta 9mm pistol - 92G - 946 fps

I got 922 fps average on a ten round string from my Beretta 92FS using the 3.7 gr Bullseye loads with Federal small pistol primers. All very consistent with your results. I've no idea if Bullseye is temperature sensitive. It would make a good experiment to try when the cold weather returns.

 

[Samuel_Hoggson]

No. I never shoot reloads through the Uzi.

Reasons:

I can't save enough money by doing so to justify it.

Loading 9mm is a PIA.......pls no flames, it's JMHO b/c I can't stand handling the empty little buggers.

I really like using a power-mag to pick up steel case empties at shoots.

I can't do as good a job of ensuring 100% adequate case neck tension as the factories (tension and/or sealant).

If savings were so important I'd use the .22 kit more........uh, actually, that's just what I do.

And last (the wussiest reason) I don't yet own a suppressor so have no need of 147 subsonics.

Sam

 

[ColGlock]

No. I never shoot reloads through the Uzi.

Reasons:

I can't save enough money by doing so to justify it.

Loading 9mm is a PIA.......pls no flames, it's JMHO b/c I can't stand handling the empty little buggers.

I really like using a power-mag to pick up steel case empties at shoots.

I can't do as good a job of ensuring 100% adequate case neck tension as the factories (tension and/or sealant).

If savings were so important I'd use the .22 kit more........uh, actually, that's just what I do.

And last (the wussiest reason) I don't yet own a suppressor so have no need of 147 subsonics.

Sam

Let see If we can translate this.

He does not reload , but he heard from someone that 9mm is a PITA to reload. He also heard the equally false idea that the factory ammo is better quality.

 

[RoverDave]

Let see If we can translate this.

He does not reload , but he heard from someone that 9mm is a PITA to reload. He also heard the equally false idea that the factory ammo is better quality.

This looks like one of those free on-line translations where the results aren't quite accurate.