Curtis - I currently use 85gr. 2F, a 10oz denim patch and a .595" ball from a Tanner mould. My bore is choked for about 2"- about an Improved Cylinder choke. The load goes down very easily, of course, once started with a short starter. No fouling buildup using pure lead balls - they must be obturating some upon ignition to seal the powder gasses behind, as patches are not damaged in the slightest, even though they are 'almost' loose going down. .0005" expansion per side would do it.