What kind of ranges do you think you might want to be shooting? The T/C Shockwaves in 200 & 250 grain should shoot excellent out of that rifle with anywhere from 100-120 grains of loose FFg powder.

The big thing is to make sure you swab the barrelbetween shots when your working up loads. Use a wet patch and work in short strokes so you do not stick the patch in the barrel. Then follow the wet patch with two dry ones.

Check your breech plug from time to time so it does not seize up. Just make sure it will twist back and fourth. There are a lot of other hints out there. You might want to read some of the back posts.

Good luck with your rifle...