I took out my Rossi .243 today and tried to shoot it at 25yds with the open sights first. I got it aligned and moved over to 50 yards. Still using the open sights, I couldn't get it to shoot anything less than 3-4" groups. I tried everything I could, from your suggestions, and even a few things I thought of on my own, and it wouldn't group for anything. My buddy tried it too, and had the same issues I was having, so it wasn't just me.
Frustrated, I started packing up and some guy asked about my gun. I told him what it was and what problems I was having and he asked me if I wanted to sell it. I said I did and he offered me $200.00 without the scope and slip on limb saver, and I took it! I asked him why he wanted it, and he told me he teaches gun safety and it don't need to be that accurate for any long distance and that they never shoot over 25 yards anyway. So, I showed him my results at 25 yards and he said that would be fine.
So, I went straight to the Bi-Mart and bought me a Weatherby Vanguard in .243 Win for $359.00. Then, I went to Wal Mart, and exchanged my scope for a new one in the same model, plus I bought a set of steel ring mounts too. I went ahead and did this just in case the other one had issues. I doubt it, I think it was the gun anyway, but now I am set.
This new Weatherby is sweet! I haven't shot it yet, but I am going out to the range again tomorrow to try it out. The test target that comes with this new rifle shows a three shot group at 100 yards and get this... It is less than 0.5". This thing should have been one of their Sub-MOA rifles for sure. It's guaranteed to 1.5", so I should be able to give you guys a really good report tomorrow night or Monday morning.
I will try to post pics then too!
Mikey!