There is a fellow named Don who goes by "Mistynook" on Gunbroker. He sells a very good gas checked lead round nose for the .351 for a reasonable price.
Fast delivery!
Here is a link to his auction page, you can contact him through the link.
http://www.gunbroker.com/Auction/Vie...Item=276871815
I have shot these and just received 300 more.
Tom