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.223 - 5.56

I go to 1000 with a MV of 2910. Still supersonic enough for Shotmarker and SiverMountain targets to pickup
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On this one of the sensors were not completely plugged in.
 
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Still tweaking it.
25.3gr varget. Hornady brass formed to rifle, neck sized only,
Cci400
2.280" coal
Bergara b14 ridge sp 18"
Yhm t3 can.
2881avg sd9, es21.
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25gr did a nice 3 shot clover and 1 stupid flyer.
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I use it for 6.5g .
It's gtg.

I prefer clean first fired brass from the range. No wasted hassle fire forming to blow out shoulders.
The cheap 223 brands that cover the floor are my favorite brass.

The big name stuff is not worth the hassles of saving up a run on all said and done. I like the bulk range ammo in brands people would not purchase for "good ammo" .

I don't like pre processed brass, it's all sized too far down. I normally run 2-3 thousands of bump at the most for my ar's chambers that are within 1/2 thousands of each other on the shoulder.
 
Starline is good - I use some in 5.56, use it for my 6.8 SPC.

In hindsight I’d probably been as good buying Starline in bulk instead of lake city brass then processing it if I think about the time involved & what that’s worth
 
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How is the Starline brass? I have heard good reports.
I am pretty pleased with mine. I bought 500 to use for my AR15. I use Lapua for my 223 bolt gun but each range session I seem to not be able to find my brass. But when I weight sorted the 500, I came up with around 430 when in 1 gn. That gave me 4 sets of 100. After I had fired them 1 time I was getting high concentricity counts and my targets were almost indistinguishable from my Lapua cases. I felt like I won in this decision. I have 3 firings on them and have not lost 1 case to anything except I can't find one every now and then.

David
 
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How is the Starline brass? I have heard good reports.

I don't know if I got my spreadsheets off of my old computer that went tits up or not, but I tested 20 random pieces of Starline brass in 6.5CM, Grendel, and .223.

Base to shoulder datum, OAL, and primer pocket depth on virgin cases were all in the .003 ES and .001 SD range. H2O capacity was all within about .4gr ES and .1 SD.

Lapua tested better, but I'm perfectly happy to run Starline in most of my rifles... especially autoloaders.

Just watch the case capacity of Starline...it is significantly less than Lapua or LC in .223, and Lapua/Hornady in the Grendel. You'll run into pressure a full grain less than book max in a lot of cases.
 
I don't know if I got my spreadsheets off of my old computer that went tits up or not, but I tested 20 random pieces of Starline brass in 6.5CM, Grendel, and .223.

Base to shoulder datum, OAL, and primer pocket depth on virgin cases were all in the .003 ES and .001 SD range. H2O capacity was all within about .4gr ES and .1 SD.

Lapua tested better, but I'm perfectly happy to run Starline in most of my rifles... especially autoloaders.

Just watch the case capacity of Starline...it is significantly less than Lapua or LC in .223, and Lapua/Hornady in the Grendel. You'll run into pressure a full grain less than book max in a lot of cases.
Echo what was said here about case capacity, 24gr of Varget which is a popular load for 77gr was very compressed for me with starline 223 brass.