The only advantage of the PCP guns, as far as I can tell, would be to shoot them in an area where airgun use is allowed but discharging powder firearms is illegal.
Yes, I'd like to not bend the rules as well as sending a 40 grain projectile through the trees in a sub-division at 1,000 FPS.
Heh heh, Wetcow45tte2001 eluded to a SHTF scenario and not relying on brass, primer, powder and lead with a PCP rifle. He opted for .22 caliber for pellet availability.
I think I can make a mold for a .25 projectile and size to the correct diameter. Suppressed these rifles are really quiet and don't attract a lot of attention.
If I didn't live where I do I'd suppress a CZ bolt gun and scope it.