how you get along

[Ridge_Runner]

How does a fired Starline case web measurement compared to a fired Hornady’s before sizing?

soon as time permits will measure them and let you know

 

[Ridge_Runner]

Starline brass measures . 439, Hornady . 436

 

[TackDriver284]

I do not. the brass do fine with starting loads, but once you load a top level load every case fired is toast. Look at the shoulder on the right case, its still rounded, not as sharp as the hornady. That concerns me, the front end of the case is not fully formed but the casehead is expanded a bunch

Not sure if my eyes are deceiving me, does the Starline brass neck look a lot shorter than the Hornady?

 

[Ridge_Runner]

Not sure if my eyes are deceiving me, does the Starline brass neck look a lot shorter than the Hornady?

it is shorter,, starline trims their brass. but what gets me if the pressure is too high for starline brass, why is the shoulder still rounded?

 

[TackDriver284]

it is shorter,, starline trims their brass. but what gets me if the pressure is too high for starline brass, why is the shoulder still rounded?

I'm stumped on why it worked for with Hornady and not Starline. Have you contacted Starline about this?

 

[Ridge_Runner]

I'm stumped on why it worked for with Hornady and not Starline. Have you contacted Starline about this?

have not and won't just mark it down to a lesson learned.

 

[JD338]

It almost sounds like maybe the brass wasn't processed or annealed properly resulting in a soft case and loose primer pockets.
Have you contacted Starline about this?

JD338

 

[RL338]

For 0.003” difference you are moving a lot of brass down when sizing. As mentioned by others contact Starline and see what they have to say. You shouldn’t be trying to swaged a belt onto a case when sizing.