When Federal Ultra Match was made my Eley (I think it was Eley???), it was the best out of my RPRF. Other's that did well were Lapua Center-X, Eley Club and RWS-R50. Surprisingly, I found that the CCI SV's did almost as well and so they're a very good value for what you pay. The worst were Remington Golden Bullets, Winchester Super-X, Aguila Interceptors, Herter's Target and for the money, CCI Green Tag was a huge disappointment (didn't perform as well as the SV's). Attached is a file with a lot of difference rounds that I've fire through my RPRF. It's an Excel file that I've changed the extension to .pdf so that it can be post here for download. You'll just have to change that extension back to .xlsx to get at the data. I had changed barrels to a Shaw barrel and it's indicated by a +S on the gun description.
Step 1. Open Windows File Explorer.
Step 2. Click the "View" tab. Tick the "File name extensions" option.
Step 3. Now you can see the file extension of all your files. Find the file that you would like to change the file extension, right-click the file, choose rename, and enter the new file extension.