Thanks Daryl. Following your advice a .995 to 1" RB in pure lead should weigh 1480 - 1505 grains based on the calculator on beartooth, which would actually seem to put it on the higher side of the range based on what I have read. Seems like even though a lot of writers/hunters of old used "4 ounce bullets" when you dig a little deeper you find out they range from 1250 to 1500 grains most of the time, especially in cartridge guns. I have been doing as much research as I can on these things for about 6 months now and most "4 bores" seem to have been shooting .935 to .955 balls, with very few 1" and over.

Interesting stuff. I sure wish I could round this out with a cartridge gun like omni bob's... but a bit out of my league price-wise. A double 4 bore greener smoothbore for 1500 grain round balls and 20" barrels sure would be a handy rifle for whitetail... :-).