The original run of 480's shoot just as accurately.
I never had an issue with extraction in my first gen 480 because I never found a need to run max pressure. 400 @ 1200 is IMHO perfection. When I pushed 460's 1100 fps I got slightly sticky extraction, and 400's @ 1300+ will do the same.
The SRH may look massive, but it really isn't that heavy of a gun. With most of the cylinder cut away for cartridges, the big hole in the barrel and the stub back strap a 7 1/2" SRH is the same weight as a 5 1/2" FA mdl 83 454.
