Say a laminate on a Custom P-17, made into a 416 Rigby.

I cross bolt them all past 375, though a properly bedded 416 shouldn't be an issue. If you EVER think you'll load hotter than 410 at 2380, then it's not a bad idea.

the pin in the wrist is better

Thanks jeffe! My 'smith is making about 4 Rigbys at the same time so I got my name in there as well. With a "bulk" order it cuts down on price for all of us!!
So, with our temperature variances here, a walnut stock, although nice to look at, is not a wise choice.
Gibbs 505, got me thinking about alternatives but I like the feel of wood, ergo a laminate is the only weather fighter to choose.
And yes for nostalgia I am trying to locate 410 Woodleigh Weldcores. Around 2400 fps should be enough for anything here and easy on brass as well.

Laminates are more weather resistant and stable with temperature, humidity and barometric pressure changes, but they need cross bolting and pillar bedding more so than walnut.

The laminate is only as good as the wood the laminations are made of.

Birch?

Walnut laminates are better.

Synthetic is best of all.

I have cracked and compressed more laminates than walnut with heavy kickers or just tightening the action screws when pillars had not been installed, but never a synthetic has cracked or compressed in bedding for me.

They all stand up to a pounding if properly reinforced and bedded.

Jeffe will tell you how it is done.

Ditto what Jeffe and RIP said.

RIP beat me to it. I am getting ready to cross bolt my .338-06 after finding a crack in the lug area that was NOT glassed originally. Cross bolts are cheap insurance.

you have received some good advice above. the laminates are usually birch so to be conservative crossbolts of some sort should be used. i'm putting a 458 lott in one. it is cross bolted behind the recoil lug and the magazine box and there is a brass pin screwed cross ways behind the barrel lug. it is bedded in devcon stainless steel. so far it has held up to the shooting needed to regulate the standing v sight.