Small rifle primers in 308 - benefits for hunting ammo?

[Wapiti]

Hi guys,
When I was at a larger Toowoomba gunstore I saw a few brands of 308 brass with small rifle primer pockets. I'm not sure if I've asked this before but are there any benefits to these for me?
They seem to be on the more exxy side of the cost scale. Might just be because of the brands sold like this.

We discuss large and magnum primers, surely small rifle would be almost anaemic in a case that can hold 50 grains of powder?
With a flash coming concentrated through a smaller hole?
Are there any issues getting consistent velocities up the top end of the scale?

Just a bit of a disclaimer - I'm definately not after more velocity from the cartridge - I prefer to sit somewhere in the middle of any cartridges ability to avoid issues and if I want more speed will go to a larger cartridge where it's safe.

[straightshooter]

Shooters have a great propensity to believe mythology and magic but especially so if it is delivered with an American accent..
Go back to the seventies when US benchresters discovered the 220 Russian case and turned it into a 22 PPC, thereby displacing the 222 case as king, and finding it ideal for benchrest accuracy. The problem then arose that the 220 Russian case was unobtainable so many benchresters turned to reforming readily available7.62x39 cases. However with these reformed cases durability problems arose due to the large primer and the resulting reduced amount of brass supporting the case web when indications suggested accuracy was improving with increased powder loads.
This was the progenitor of the "you too can get benchrest accuracy if you use SR primers" myth.
This gift to marketing is what allows case manufacturers to charge x3 or x4 over the price of standard brass for only a minuscule increase in material cost.

[Damo300]

They'd be okay for subs I reckon.