Do you have a 'smith or need to find one? Mine was a Ruger BLKHWK security six. Great plinking gun.My first handgun was a Colt 1911 Series 70 back in 1974. I still have it but it needs to see a gunsmith as the hammer will not fire after cocking - I'm just not brave enough to take it apart for fear of losing timey parts or springs.
That one was the best model to shoot and take apart if needed.Mine was a Ruger Mark 1 back in 1976. Bought it from Gene's Gun Room in Irvington.