BudsGunShop.com - Heavy rounds

The gun will certainly stand any loads you can put through it. The only consideration is that heavy loads may cause the stock cylinder pin to jump out. If this is the case Belt Mountain has pins that will stay in place.
beltmountain.com/ruger.htm

Yes it will the Ruger blackhawks are one of the strongest actions available in fact many Reloading manuals list 45LC loads marked Blackhawk only that would destroy a normal 45lc

Yes it will the Ruger blackhawks are one of the strongest actions available in fact many Reloading manuals list 45LC loads marked Blackhawk only that would destroy a normal 45lc

Yes it will Charles, the "Blackhawk" and "Super Blackhawk" series of Ruger pistols are designed for heavy loads. These Heavy .45 Colt +P loads are safe in all LARGE FRAME Ruger revolvers. (includes Blackhawk, Super Blackhawk, all pre-2005 Vaquero, Bisley, Redhawk).