Rugers are not known for accuracy. My suggestion is to take a spotter to the range with you. I would run a cylinder through of this mix. 2 high quality name brand JSPs, 2 high quality name brand JHPs and 2 generic bullets of your choice. The 200 gr should be tried first. Have the spotter note where each hits. Check/adjust your aim for each shot. Step up in bullet gr size and repeat the shoot, spot and adjust cycle. You might be lucky and find a commercial load that your Ruger likes. If you do, buy more. If you don't, buy some more brands, types and weight gr bullets and repeat. If you see a problem with the aid of the spotter, see if Tuckasee changes will work. If that won't work, it may be time to file the sights or check the barrel for clocking. Clocking is basically when the front sight is leaning either to 1 O'clock or 11 O'clock. The barrel will need to be turned accordingly. Go slow if you file the front sight as you can't replace what you remove. I have widened and deepened the rear sights on every Ruger I have ever had. Most Rugers shoot quite high from the box. Holding low doesn't always help. The spotter and patience along with different ammunition experiments will show you what is up, down or sideways.