I am looking at a scoped handgun. Probably a Super Redhawk in 44 mag. I noticed that the scope specification for have an eye relief of only 18" on the Leupold and 20" on the Bushnell. I have a straight arm length of about 24" My question is: do you typically shoot a scoped handgun from the two handed bent arm position? Would you get the 7-1/2" or the 9-1/2" barrel and why?