Large Primer vs Small Primer in regards to pressure

[xswanted]

I see Lapua is making 6.5 creedmoor brass with small rifle Primer pockets.

I know there is something to do with reassure with this but what is the explanation as to why the small Primer pocket is an advantage over the large?

Thanks

 

[pmg]

Little off topic, I would like lapua come up with the creedmoor family like hornady did only expand it to include the 22 creedmoor. I would probably buy all three.

 

[TAJ45]

The amount of brass around the pocket should help with pp loosening up when pushed to reach a desirable node.

 

[JakeGraves]

Same size case head with smaller hole resulting in more brass to resist plasticity deformation due to pressure.

 

[Shaggy357]

Same size case head with smaller hole resulting in more brass to resist plasticity deformation due to pressure.

+1

 

[jdh47]

Someone mentioned on another thread about the 22 Nosler that it was (9/10) scale of the Creedmoor. They jumped on it before anyone else could. lots of new offerings with the most in overbore stuff. We'll see how it works out because the men soon get separated from the boys in cartridge offerings.

One thing's for sure there is lots of new stuff to play with.

Joe