0.454 has intense pressure requiring a tough chamber. .410 requires a long chamber. So far no one has put the two together.
0.454 has intense pressure requiring a tough chamber. .410 requires a long chamber. So far no one has put the two together.A cylinder long enough to handle .410 shotshells but with thick enough chamber walls to handle .454's would be excessively heavy.
That thing about the pressure spike is just retarded. If that were a reason to not make a .454, we wouldn't have .454's.