Does anyone have experience enough with the 500/416 to give opinions regarding the caliber?

I will soon get my first bigger bore SXS DR, and have about decided on this caliber. I've had two 9,3x74r SXS DRs. I will have good claw mounts or swing mount and a 1.5x5 scope mounted for longer shots with the 350 gr Speers to use on plains game...use the right barrel, only.

I would hope the sights and gun would be regulated for something like Woodleigh 410s at around 2350 to 2400 fps.

With all the crazy restrictions these new governments are trying out, it seens much easier to bring along only one gun.