Winchester 5.56 Ammunition Recall

Winchester is recalling some 5.56 ammunition after catastrophic failures destroyed a number of law enforcement AR15 type rifles.

Here’s a recent teletype regarding the failures:
ATTN: REQUEST FOR NATIONAL BROADCAST – FIREARMS HAZARD INFORMATION
****** CORRECTION TO ORIGINAL BROADCAST SENT 2/25/11 *******

Attention Law Enforcement Agencies, this Police Department is seeking any similar incidences with the .223/5.56 style rifles. 

On 02/14/11 an officer was attending an M4/MP-5 class and during a shooting session, the .223 rifle (Stag Arms) experienced a catastrophic failure resulting in an upper receiver cracking and the bolt being pushed into the bolt assembley. 

During a SWAT training day on 02/23/11, three more M4 style rifles experienced a catastrophic failure at the same time. All three rifles experienced the bolts being pushed into the bolt assembly, the upper receivers were cracked and / or broken apart, and the lower receivers were bowed outward. The ammunition we used in all the rifles were Winchester RA223R2 Ranger 64 gr. Power Point.
The Rifles were: 1-Colt, 2- Bushmasters and 1 – Stag Arms 

The recall info can be found here.

3/1/2011
Olin Corporation, through its Winchester Division, is recalling six (6) lots of its RANGER® 223 Remington 64 Grain Power-Point® (PP) centerfire rifle ammunition (Symbol Number RA223R2).
Lot Numbers (last four characters): DK01, DK11, DK21, DK31, DK41, and DK51
Through extensive evaluation Winchester has determined the above lots of RANGER® Law Enforcement ammunition may contain incorrect propellant. Incorrect propellant in this ammunition may cause firearm damage, rendering the firearm inoperable, and subject the shooter or bystanders to a risk of serious personal injury when fired. 

DO NOT USE WINCHESTER® RANGER® 223 REMINGTON 64 GRAIN POWER-POINT® AMMUNITION THAT HAS A LOT NUMBER ENDING IN DK01, DK11, DK21, DK31, DK41 or DK51. 

The ammunition Lot Number is ink stamped inside the right tuck flap of the 20-round carton.

To determine if your ammunition is subject to this notice, review the Lot Number. If the last four characters of the Lot Number are DK01, DK11, DK21, DK31, DK41 or DK51 immediately discontinue use and contact Winchester toll-free at 866-423-5224 to arrange for replacement ammunition and free UPS pick-up of the recalled ammunition.