I have a web site that might help you with your loading problem. bpbullets.com. Recommend you read up on steps to accuracy, which involves using a spit patch to swab your barrel between rounds. Also use Hodgdons 777 loose powder. Try the Precision Rifle Extreme. It is a sabot, but should do everything you want provided you follow the steps on my site. They only cost $8.95 a pack, which isn't too bad and they do the job.
Good luck
