good question, IF I can recall what the original thread is.
I bought 5 boxes (five to a box) of Federal's LE (Law Enforcement-or so they advertise it as) Low Recoil 00 Buck, reasoning being (to me) easier follow up shots due to reduced recoil. Also, Federal advertises a tighter pattern-not that that is any consideration in close encounters of the worst kind, i.e. inside your abode, fact is I might rather a wider spread.
I'm sure it penetrates less, that was the question correct?, simply due to the lower velocity. Brent would know more about all that then I. I'm interested in a definitive answer as I wouldn't want to have an insufficient load in my shotgun, although a 12 guage buckshot even if lower velocity seems, on the surface, to be quite adequate. PERhaps I should swap it out, use standard buckshot for winter (thicker winter clothing on the BG) and low recoil in the summer?