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Hecklerusp45
01-11-2016, 07:03
I have been able to find data for other primers but can't find the cup thickness for the CCI No. 41. Any help would be appreciated.

Sunray
01-11-2016, 09:42
Same as any CCI Small Rifle Magnum primer.

Parashooter
01-11-2016, 10:56
The difference isn't cup thickness - it's anvil height (at least with the #41's big brother, #34).

http://i59.tinypic.com/20a3248.jpg

Hecklerusp45
01-11-2016, 11:36
Same as any CCI Small Rifle Magnum primer.

Then which would be thicker, the CCI No. 41 or the Federal Match AR primer?

Dollar Bill
01-11-2016, 01:40
Probably the same thickness. Federal uses a harder material for the AR then their usual primer cup material.

I'm using Tula KVB556M since Remington 7 1/2s were hard to come by for awhile and so far they have been performing very consistently.

Sunray
01-15-2016, 09:31
"...which would be thicker..." Likely neither. Magnum primers are about the compound used, not the cup material. CCI's "milspec" primers are nothing more than magnum primers.

barretcreek
01-21-2016, 08:09
The Mil-Spec primers have to withstand an impact test to resist slam fires. It refers to hardness of the material, not thickness. There was a reference to it in Handloader a while back, as well as some stuff about cup thickness. I think it was part of a series by Charles Petty.