I have a super blackhawk that I've had now for 20+ yrs and shoot it very well. It's been "tweeked" a bit and shoots really great so I decided to start hunting with it several yrs ago. I put scope on it. It'll shoot a 3-4" group at 100 yds with factory ammo, semi jacketed hp. Like an idiot I decided I wanted a "new" gun a few months back so I bought a new S&W 629 Performance Center Compensated Hunter, put a Leupold VX3 2-8 scope on it with good Warne mounts and changed the trigger springs out to get it to a 2.5 pound pull. Its beautiful and has an awesome trigger, but I can not get a group at 100 yds better than 8-10" to save my life. And I consider myself a better than average pistol shooter. I have tried 6 different factory ammos that are running from 1120 fps up to 1365. Needless to say Im not happy with it. Any thoughts on what I might try?
Im wondering if I should slug the barrel, that maybe the barrel diameter is not .429 or .430. Maybe its very different than a Ruger.