max killing range.of #6 ?

[3" 870 Shell Shucker]

It sounds like the answer is 45 Yards, if you have enough pattern density.

[SumToy]

This is numbers not kill.  I did shoot a HV winchester 31/2-2-5. It gave me 125 in a 10 at 40 yards.  I don't have the 6's or any of the red winchester shells.  I see bigger numbers with the red ones.

[WildTigerTrout]

Last Spring I killed my Gobbler at 53 paces with a Win. HV 3.5" 2oz. load of #6's. Use a Kick's GT .655 in my Benelli SBE. Did not require a second shot.I like to shoot them alot closer but had a good CLEAR shot and took it.