I hav one of each. made by Pietta the 60 Colt was made in 1983 and the Rem was made in 1999. I started with the 60 and have come to shoot the 58 more because it is easer to reload and seems to be more accurate but it is not as comfotable to hold and shoot. I don't know if the grips are the same profile and size as the originals but the 1860's grip is more comfortable to me because it leaves room for my hans behind the trigger guard. The 58' trigger guard to grip distance is such that the knuckle on my middle finger is hitting the back of the guard. Does anyone else have this problem?