New packaged lake city 5.56×45 Brass (100)
2020-2025 headstamp
This is very good, stout brass, the very same used for the US military often loaded to over 62,000 PSI!

Lake city brass sometimes have small dents this is caused by tumbling and has no effect on performance.

*We highly recommend these cases go through the processing of sizing, chamfering and deburring for best results.*

*Lake city 5.56 brass has discoloration, this is caused by the annealing process to extend the life of the brass.

Winchester Reloading Brass is manufactured to extremely tight tolerances to ensure smooth feeding and positive chambering. Consistent case-to-case weight and capacity delivers outstanding accuracy. Winchester’s high quality, durable brass can be reloaded several times. This is true 5.56x45mm mil-spec, new, unfired, heavy duty brass with a Lake City headstamp. It is the same brass used to load ammunition supplied to our fighting forces and offers outstanding performance in AR-15 type rifles. This is not loaded ammunition.

Brass Preparation: With bulk rifle brass you may sometimes notice a few case mouths are “out of round” or slightly dented below the shoulder. These imperfections occur in the final tumbling wash operation after the case mouth has been annealed. Brass manufacturers are aware of the case cosmetics and have worked to mitigate it, but due to equipment design, denting may still occur. Minor dents are normally removed in the first firing and will not affect case life or performance. On non-plated brass, you may also notice all the anneal stain might not be polished off, which may give the case neck a pinkish color. With some smaller caliber cases you may notice the case mouths to be slightly belled.

With all new rifle brass, you should first straighten out the case and case mouth, then chamfer and debur the case mouth inside and out. To straighten the case mouth, run the case part way into the sizer die and let the expander ball straighten the brass. To prevent the case neck from stretching, be sure to lubricate the case neck inside the case mouth.

Components

New Lake City 5.56 Brass (100)