KN - yes.....but if you read this article, you might change your thoughts on a SR primer in a 308 case:

http://riflemansjournal.blogspot.com/2010/01/cartridges-lapua-small-primer-308.html

Note - do read comments by Kevin Thomas - who works w/Lapua USA...

I think when one veers off the commercial path or round choice as the 260, Creed, and 47 there is one that to my thinking makes sense for a custom if a handloader likes to make their brass....

http://www.6mmar.com/65_SuperLR.php

Not knocking your idea, but the results of testing small rifle 308 brass may not support any benefit, and for a hunting round, POSSIBLY could have ignition trouble, something the smaller capacity 47 seems to not have much of unless bad primers are used.

Hornady put some great thought and research I am sure to 'TWEAK' their baby the best they could...IMHO, and I am confident they went LR primers for a reason. Lapua, chose 'small' for their smaller sized round...based on their test results.

I believe Powder and primer choice must work in unison for positive ignition under the worst of conditions, in a given size/designed case.