SSK Industries upper

[Medic650]

I'm getting into 300 Whisper with a SSK Industries upper I just bought off gunbroker. I've read some post that make it look like SSK may have a little tighter chamber. Will SSK uppers chamber whisper ammo made using 223 brass? I would rather size 223 than buy 221 brass to form.

[kurtz]

I'm getting into 300 Whisper with a SSK Industries upper I just bought off gunbroker. I've read some post that make it look like SSK may have a little tighter chamber. Will SSK uppers chamber whisper ammo made using 223 brass? I would rather size 223 than buy 221 brass to form.


I have two SSK AR uppers and a SSK CZ bolt-gun....all three work with .223 based whisper brass, I'm using the JD Jones/Hornady whisper die sets.....the loaded ammo that I bought from SSK was made from Lake City .223 brass...

had heard that the early chambers were more .221 specific.....

hope this helps,

kurtz

[Medic650]

That helps, thanks. I have quite a bit of Lake City brass. I was hoping I could use it.

[pud-knocker]

I have a SSK AR and bolt-gun, both work with either .221 or .223 made brass cut to 1.405"

[Garrett]

The brass I bought from SSK when I bought my Contender barrel was made from military 5.56 brass. I've had no problems shooting either .221 brass or cut down 5.56 brass in my barrel.

[Medic650]

Finally got to try shooting my SSK upper with brass I made from Lake City once fired brass. None of it would chamber. Loaded outside neck diameter was a few thousands bigger. Ammo I reloaded from Corbon made from Winchester brass worked fine. Guess I need to find some commercial brass to form from.

[Cornholio]

What was the trim length on the LC brass you made?

[Medic650]

I trimmed to 1.355" Loaded Corbon made from Winchester brass, and what I reloaded from that, measured 0.330" OD at the mouth above the shoulder. Loaded LC brass measured 0.335" same measurement.