User Panel
User Panel
User Panel
|
Posted: 6/12/2005 5:39:28 AM EDT
[#1]
How can you forget about several thousand rounds of win in white box? Thats a lot of ammo to forget about. Anyways, since you forgot about them they must not be important to you. Please send some to me and I will always know where they are... 
|
|
|
|
|
Posted: 6/12/2005 6:00:44 AM EDT
[#2]
Attic storage is not a good idea... Probably got some moisture issues now. 
|
|
|
|
|
Posted: 6/12/2005 8:50:25 AM EDT
[#3]
This is true. You better send it to me so I can dispose of it properly. |
||
|
|
|
Posted: 6/12/2005 8:53:53 AM EDT
[#4]
I asked the same thing a while back www.ar15.com/forums/topic.html?b=3&f=16&t=238930
|
|
|
|
Posted: 6/12/2005 9:39:46 AM EDT
[#5]
1999 was the last year that Winchester (Olin) ran Lake City for the military (the contract was taken over by ATK/Federal in 2000). Q3131 was really LC M193 with a different headstamp and packaging.
The problem was that some of the '99 ammo lots were loaded with out-of-spec powder that created too much pressure and had some other weird problems (sooty brass for one). Some '99 lots were fine, some had minor problems, and some had big problems. At one point, Winchester would exchange the ammo with IMI-manufactured Q3131A, but that was around 2001. -Troy |
|
|
|
Posted: 6/12/2005 4:47:35 PM EDT
[#6]
The ammo was in a storage room that is heated and cooled. No moisture issues. It was stashed in a large military surplus container. I shot several hundred rounds when I first purchased it. I did not notice any quality issues.
I wonder where I could find a list of the defective lot numbers? Winchester? |
|
|
|
Posted: 6/12/2005 9:10:24 PM EDT
[#7]
I shot about 180 rounds of this type of ammo today. I was wondering the same thing. I got it from my PD for practice ammo, it is 99 also. I must have had some of the over pressure ones. I had at least 5 rounds that stuck in the chamber and had the lip of the brass ripped off by the extractor. I was beginning to think that something was wrong with my gun, but I guess I'll chalk it up to bad ammo unless I have problems with other ammo. I also noticed a lot of white smoke while shooting this ammo.
I guess I should get rid of the rest of this ammo. |
|
|
|
Posted: 6/13/2005 4:50:10 PM EDT
[#8]
Hows this... As reported by the Maryland AR15 Shooters Site, the potentially "bad" lots have been identified as: PD50 PD90 PF40 PC22 PG62 PF52 PF11 PL31 PN02 |
|
|
|
|
Posted: 6/15/2005 5:46:42 PM EDT
[#9]
Thanks for the info. All 5,000 rds are lot # PC03.
|
|
|
|
Posted: 6/15/2005 9:14:57 PM EDT
[#10]
Probably issues due to tempature extremes too. ETA: Oops, I read down and saw that the guys attic has heat and A/C. Wow -- must be some house. |
||
|
|
|
Posted: 6/16/2005 7:40:18 AM EDT
[#11]
Can I move into your attic?
|
|
|
|
Posted: 7/21/2005 7:30:20 PM EDT
[#12]
I shot up some '99 lot PF40 today and have been intermittently shooting it since '99. I have gone through a couple cases without any major problems, but there are obvious pressure issues. I don't have my chrono numbers handy, but this lot of Q3131 was running about 100 FPS faster than the other M193 type ammo IIRC. Here is a pic of a few fired rounds from today (BM 14.5”). It's somewhat difficult to see, but there are shiny raised areas were brass was shaved off. These shavings usually find their way under the extractor, but can work their way into the ejector and cause it to bind up.
 |
|
|
|
Posted: 7/21/2005 8:11:59 PM EDT
[#13]
You can also see significant brass flowing into the extractor and ejector cutouts, as well as some cratering of the primer. Both are classic signs of high pressure.
-Troy |
|
|
|
Posted: 7/22/2005 1:12:49 AM EDT
[#14]
What sharp part of the rifle is shaving the brass off like that, do you think?
|
|
|
|
Posted: 7/22/2005 9:51:49 AM EDT
[#15]
FWIW I've seen the brass markings as pictured above with Canadian C77 ball and occasionally with Federal XM193, both of which are higher pressure loads. I would assume that even with a 5.56 NATO chamber, you would commonly see some cratering and flattening of the primer. The cratering of the primers in that piacture does not appear to be all that bad, but the brass flow is pretty obvious. |
|
|
|
|
Posted: 7/22/2005 9:59:24 AM EDT
[#16]
The brass from the cartidge flows into the gap between the bolt body and the ejector plunger, and also around the extracor, then sometimes shaves off as the action works and the bolt turns. You can see the same thing in bolt action rifles, and this is what causes a "sticky" or stuck bolt sometimes. |
|
|
|
|
Posted: 8/11/2005 8:36:24 AM EDT
[#17]
.
|
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
