Looking at some berdan primed brass that had wooden bullets pulled, and never fired. Question is would there be any problems with adding powder, regular bullets and going shooting, do they cause higher or lower pressures?

I don't know if the primers in the wood bullet cartridges are any different than the primers used in standard loads. I would guess not though.
I have used berdan primers in my 360No.2 and my 404. The 404 with original Kynoch primed brass. No problems at all other than the hassle of removing the spent primer for further reloading.

Possibly corrosive priming compound??

or possibly, it is non corr 6.5Swde brass. First quest. No. Second ques. ?who knows? Start low and work up.Best

they are 6.5 x55 cartridges. thanks

I've been shooting berdan primed 308 handloads for a while now. I think the dual flash holes give slightly higher pressures because you're lighting the powder column in two places simultaneously. I get higher than expected velocities from known loads. But I don't think it is significant enough to be an issue as long as you do the normal "start below max and work up" drill.

I bought a gob of that "gallery" ammo loaded with copper pellets. I salvaged the powder for pistol loads, then reloaded the brass with 140s for hunting. The stuff I've got (HA 48 VI46 head stamp)is great brass -so good in fact I bought 5000 berdan primers just to reuse it.