I just wanted to take a moment to thank everyone for taking time and sharing information. I spent a few hours on the range yesterday with my new Omega sighting it in and experimenting with loads and charges. The information that I found on this site clearly saved my time, effort and money. I ended up on settlling on 348 Powerbelts with 100 grains of 777 pellets (more than adequate for all of my needs). Clean up was not too bad and I had no problems with the breach plug after 30 plus shots. Thanks again!