Revisiting the shotgun

Doc my go to 870p is loaded up with your choice Federal LE132-1B and was just wondering as a lot of companies are getting into this low or mitigated recoil buckshot, at what velocity does say #1 or 00 start to fail to meet penetration requirements? Does a plated buckshot improve this in the lower velocity loads? You have me sold on the LE132-1B, but am I “nerfing” my shotguns performance by not having a load that will provide a larger spread on hand?