I've got a couple I like in mine. Using Win. small rifle primers for all. For full power, I use the RCBS 200gr. flatnose over a bunch of WC680. I seat the bullet to nearly touch the leade, so only the gascheck is in the case, and work up from published starting loads. AA1680 would be similar. For all 'round fun shooting it's Lyman #358429 175gr. Keith bullet over Blue Dot. Work up until you start getting leading, and back off slightly. Very accurate, little recoil, and still whacks the rams at 200 with no problem. The 200gr. load is pretty rude out of a 10" tube, but sure packs a punch. Trying to seat them back to normal lengths doesn't work; leads like crazy and accuracy is terrible. I sure wish TC would chamber those barrels properly! Keep working with it, you're sure to find a good combination. :wink: