Lake City 223 brass ?

[rebs]

If this is true that Lake City has many lines making same year date brass doesn't that mean there would be some difference in the brass made on different lines ? Then why do guys specifically want all the same year date LC 223 brass ?

 

[distinguished]

Sierra has several lines making bullets too. Never noticed the difference in accuracy. Tooling has to be replaced or adjusted from time to time due to various factors so, the concept of staying within the same lot or in the case of brass, the same year makes sense.

 

[milboltnut]

same lot is important to some people.... I just go with the same manufacture and as long as the hand loading procedures are consistent, then go from there. Case capacity, volume could play a part, etc...I know a guy who could care less what he shoots through his Weatherbys or Sako's or any other rifles he shoots. But if you want consistent loads then sort it out.

 

[Rsadams]

Case capacity is the answer , but it's a good question... I try and find all the same years but shooting iron sights with my old eyes it doesn't really matter...

 

[cw308]

Went down that rabbit hole , now I separate brass brands , some brands are thicker the others . I prep my brass , wet tumble , size to the same case headspace setting , uniformed primer pockets once , make all flash holes the same size and debur, trim length all to the same length , chamfer inside and out. As long as the cases used are exact as possible is about all that matters. Also keep round count on how many times the cases are fired. Thinking too hard takes the joy out of reloading and shooting .
Chris

 

[ronemus]

Just to make it even more fun, LC brass making procedure is to form the brass and warehouse it until needed; the headstamp isn't applied until the brass is loaded. I paid more attention to major changes, such as the change from Federal running the plant to Winchester. The procedures and testing standards fo making LC brass are specified by the Army, so there shouldn't be much difference. It would be more productive to know when any of the procedures or tests changed. I don't know if that information is available to the public.

 

[jasophil1]

The old lake city brass was held to close specs .

 

[Uncle Ed]

Save $$ By Using Lake City 5.56x45mm Once-Fired GI Brass​

http://bulletin.accurateshooter.com/2019/10/save-by-using-lake-city-5-56x45mm-once-fired-gi-brass/

Accuracy Potential of Mil-Surp 5.56×45 Brass​

So, how accurate can previously-fired GI surplus brass be in a good National Match AR-15? Well, here’s a data point from many years ago that might be of interest. A High Power shooter who wrote for the late Precision Shooting magazine took a Bill Wylde-built AR match rifle to a registered Benchrest match. His first 5-round group ever fired in a BR match was officially measured at 0.231″ at 200 hundred yards. This was fired in front of witnesses while using a moving target backer that confirmed all five rounds were fired.

He recounted that his ammo was loaded progressively with factory 52gr match bullets and a spherical powder using mixed years of LC brass with no special preparation whatsoever. Obviously, this was “exceptional”. However, he had no difficulty obtaining consistent 0.5-0.6 MOA accuracy at 200 yards using LC brass and a generic “practice” load that was not tuned to his rifle.

 

[Dgd6mm]

The old lake city brass was held to close specs .

What year is considered old? Then go backwards form date.

 

[jasophil1]

Sixty thur eighty

 

[riflewoman]

Lake City brass is made on SCAMP machines. These machines had 24 stations and progressively form the brass. There are multiple “turrets” having 24 stations and each piece of brass is worked on corresponding stations (station 5, say) as it goes along the multiple turrets. Tooling can be easily changed if the part comes out of spec. There is no guarantee that the next time a tool in station 5 is swapped out that it wasn’t the repaired tool that was in station 14. There is ZERO point in segregating cases by anything other than year.

This is an early video of the prototype

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[JB10]

I use a large amount of lake city brass for bolt action. Never seperate by date and no specific prepping. Load and shoot. Prairie dogs and coyote cant tell the difference. And the actually group verry well.taken out to 525 yards with ease. All the brass was picked up at a range, guess no one else wanted it. 3 shot group at 100 yards.

 

[D-4297]

It's worth watching . Good stuff , Maynard .