I really should of mentioned... "Already have a dedicated DG double" so try to think of something that is "dedicated PG double", I'm starting to lean more towards the .30 R Blaser (7.62×68mmR).One of the best DG double rifles for hunting PG would be the 500/416. It's ballistically the 416 Rigby in a double rifle. Just sold mine here last week. It was sold in a few hours. They are an excellent answer to your question, if scoped.
Assume none... With the only restriction being available brass & bullets.Yes that totally changes the question. What is the budget? That will answer the rest of the question.
This post clears things up.I really should of mentioned... "Already have a dedicated DG double" so try to think of something that is "dedicated PG double", I'm starting to lean more towards the .30 R Blaser (7.62×68mmR).
Assume I already hand load for the Dedicated DG double and am "ready" to hand load for the Dedicated PG double thus no intention to rely on (being restricted to) factory ammo.This post clears things up.
Best choice would and an O/U double for sure. Caliber will depend on what is available to you, but 30 Blaser would be a good choice.
Something else to consider.
I like to bring a pair of guns that are able to fill each other's rolls. If I'm doing PG and DG then both my guns will be usable for DG. Things happen... And I don't like borrowing guns. On my buffalo hunt I brought a 505 Gibbs and a 416 RM. The 416 was loaded with lighter higher velocity cartridges for PG but could easily pull double duty in a pinch.
An O/U scoped double in 375 flanged would make a fine PG rifle and be able pull double duty if something comes up.