.454, like mine. The two N frame .44 magnums here would be ok, but the SRH, pictured, with 7 1/2 barrel would defiantly be better. Mine is Magaported and shoots well. And if you practice alot with a cross draw it is not slow.
Do you know you can also fire .45 Colts out of a .454 Casull? That would kind of decide it for me.
Yes you can. I do it all the time;. Reload the .45 LC to 1200 or so fps for a 250 gr slug and 21 grns of 2400 (but NEVER use it in anything but a SRH .454, ok?)