South Carolina is now one of a small number of states that allows death by firing squad, joining Mississippi, Oklahoma and Utah.
After a federal judge's ruling, Donald Grant is scheduled to be executed later this month, and Gilbert Postelle is set to be executed next month.
"While it may be gruesome to look at, we all agree it will be quicker," attorney Jim Stronski said about the use of firing squads instead of lethal injection.
James Coddington was restored as a plaintiff in a lawsuit against Oklahoma's lethal injection process after choosing a firing squad as an alternate method.
A Texas emergency room physician told the judge in court, "I don't believe the condemned would feel anything that would approximate pain."
The state Supreme Court ruled that Brad Sigmon and Freddie Owens have a statutory right to choose the manner of their execution.
South Carolina is set to carry out its first executions in a decade due to a new law that compels condemned inmates to choose between the electric chair and a firing squad if lethal injection drugs aren't available.
State lawmakers approved a bill that will require condemned inmates to choose between dying in the electric chair or by a firing squad if lethal injection drugs aren't available.
Under current law, executions in the state must be carried out by lethal injection unless an inmate chooses electrocution.
The inmates argued that the state has the means to orchestrate their deaths by firing squad.
Bible, 66, was executed on Wednesday in Huntsville.
Officials in November 2017 struggled for 25 minutes to find a vein to shoot lethal injection drugs into his arm.
The national survey also found that 75% of Ukip supporters back capital punishment.
Up until 2004, Utah allowed firing squad executions.