parallax not the same too
Marketing.
Parallax set to 50 or 60 yards versus 150 yards or adjustable parallax.
Shotgun specific reticle vs. Rifle oriented
Neither of which speak to the OPs question re toughness.
I don't care about parallax, maybe should have ask which scope would handle lots of heavy recoil, I realize that a used leupold would be better than any new tasco