Lapua Brass and Primers

[rwj]

I’ve done that a few times with different cartridges and never had a primer alone move the bullet. I’ve read on the internet that it will, but it’s not been my experience.

Interesting... I wonder how the pressure escaped from the cartridge?

 

[Nick Caprinolo]

My test results.

Lapua .223 factory brass measures .125
Lapua unified measures .128
CCI 400 primers measure .125
Federal Small GN205M measure .119

Conclusion is that when using CCI primers, you must unify the primer pockets although I have experienced some difficulty seating the Federal primers.

 

[Bc'z]

My test results.

Lapua .223 factory brass measures .125
Lapua unified measures .128
CCI 400 primers measure .125
Federal Small GN205M measure .119

Conclusion is that when using CCI primers, you must unify the primer pockets although I have experienced some difficulty seating the Federal primers.

Now call Federal, phone# on the back of primers....
The automated answering system says.
"Thank you for calling CCI, Federal"

So 1 of life's big mysteries...
If both primers are made by the same people, why such a variance?

 

[Nick Caprinolo]

Can't tell you. I did measure several of each primer and found no variance in each brand. My guess is that CCI is made on different machinery. Remember a few years ago when you could not get Federal primer anywhere in the US. I think I read somewhere that Federal was installing a new line to make them. Must be true, as every place selling reloading supplies has them in stock.