Ruger 204 Primers

[Cinchy]

My Son wanted me to load some 204 Ruger for him, & not sure about the primers he provided? He bought 6 1/2 Rem. primers but none of my manuals list them ? Most my manuals say Rem 7 1/2, CCI 400, or Fed205m? The CCI 400 is in the same class as the Rem. 6 1/2, so was not sure if it is safe to use them or not? Anyone have any ideas or experience loading Ruger 204?

 

[Stumpm2]

Remington 6 1/2 primers are small rifle primers and will be fine. Remington 7 1/2 are small rifle Bench rest primers. No difference, just are suppose to be held to tighter specs.

 

[19 Badger]

6 1/2 Remingtons are not designed for higher pressure cartridges like a .204 ruger.

 

[JMW67]

Good to know my father used them in his triple deuce for BR comps for several years before going to the 6 ppc, this has been along time ago guess he was shooting a lower pressure load as this was just 100 and 200 yards. I will ask him if he remembers ever having any issues

 

[19 Badger]

I only use 7.5 remingtons and BR 4 CCI in my .204 Ruger. They have a much thicker cup....

 

[Cinchy]

The CCI BR 4 & the CCI 450 have the same cup thickness so I assume the CCI 450 will work? But the 450 cup has a smaller diameter, so probably will be loose in the pocket after a few loadings?

 

[19 Badger]

The CCI BR 4 & the CCI 450 have the same cup thickness so I assume the CCI 450 will work? But the 450 cup has a smaller diameter, so probably will be loose in the pocket after a few loadings?

I have shot the BR 4's and the 450's in a 6.5cm and .204 ruger with same load and found zero difference in performance. I treat them as one and the same... I typically try to stay away from top end loads so my primer pockets go quite aways....