Just an FYI - I wrote up my findings regarding prepatched bullet diameter and resulting accuracy with smokeless loads. The info is posted at Castpics.net:

http://www.castpics.net/subsit...20Cast%20Boolits.pdf

Very nicely done
I've tried single wraps in the past with little luck. I'll have to go back and try again.
This would also explain my inconsistant accuracy I was having with my 9.3 when patching .358 cast bullets. They were just too small.
Once again nice job.

Cheers, John

PWS
nice write up, im in the process of casting 416 proj now for my Satterlee built 416 RUGER...VERAL SMITH made me a neat mould which spits out nice 400 gn proj.....down the track i might go down the paper patching track
Daniel