I guess I have had my Redhawk 4" .45 Colt for about a month or so. I have been able to get to the range with it twice in that time. It shoots very well.
I like to put about 200 - 250 jacketed bullets through a stainless barrel before I start shooting cast lead. That is just a personal thing of mine. YMMV.
The first loads I shot were Hornady 250 Gr XTP's over 8.0 grains of Unique in Winchester cases and Win LP primers. They shot well.
The last range trip I bumped the load of Unique up to 8.5 grains. They also shot well. Even with my old eyes, I was getting about 4" groups at 25 yards. Not the greatest for most, but not bad with my eyes.
The next range trip I will be shooting 260 Gr Speer JHP. Not sure of powder or charge yet. I am looking into the Merit Optical Attachment for my eyeglasses.
Mostly, I am very happy with my Redhawk. I am sure it will always be capable of more accuracy than I can shoot it with. It feels very solid. The only thing I may change is the grips. I just haven't decided if I like the Hogue's yet.
Thanks,
Rick