I bought this Isaac Hollis 8 Bore Big game rifle - no clue what to load

[buckstix]

I bought this Isaac Hollis 8 Bore Big game rifle - no clue what to load

Hello All,

I bought this 8 Bore Big game rifle at the last Poulin Auction but I have no clue what to load for it.

Bore measures .850" and I bought some .830" round balls. Now I need to find out how much powder to use and patch thickness.

any suggestions?

http://www.buckstix.com/buckpics/8bore-000.jpg

 

[Nevada Smith]

Well, I believe 360 grains of black powder is too much:

Search for "8 bore black powder rifle load," e.g.

 

[Nevada Smith]

FYI:

"A Master Class on the Muzzle Loading Percussion Rifle - Part 3 Developing An Accurate Load"

and Part 4 Load Development Continued