Rim diameter of Starline .45 Auto Rim cases?

Elric

Well-Known Member
The R-P AR cases are running about .513, and the ejector doesn't always catch 'em all.

What is the rim diameter of Starline AR cases? I just got a new box in from Midway, but I'd rather not cut it open if the rims are .513 ...

UPDATE: Starline responded, their rims are .510-.513.

UPDATE: The nice folks in the S&W forum said that pointing the revolver UP while ejecting is the way it's done. I tried a few cylinders of fired cases, and YES that's how it works.
 
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CZ93X62

Official forum enigma
BRB.

OK--Starline production from 13 months ago--rim outside diameter is .513" on 10 examples.
 
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Elric

Well-Known Member
Arrgh. In the same boat. I'll ask on the S&W forum if anoter extractor might fix it. If not, all this 45 AR brass is not doing me much good.
 

Walks

Well-Known Member
I don't have any starline brass. All I have are some REM that I purchased in the late 1980's. 1500 cases and about 300rds from shot up REM factory stuff.
All measure .508-.509.
And 200 OLD WESTERN brass, but not balloon head, they measure .511-.512.

I guess I've never had a problem because I automatically turn revolvers muzzle up to unload them. Never even gave it much thought.
 

Missionary

Well-Known Member
Looks to me S&W ought to get their act together.
We own numerous S&W #3 revolvers in 44 Russian and you could eject fired ammo standing in a hurricane ejecting into the wind.