I run a CVA.
Get lots of range time in. Some powder will work better for your rifle than others. I discovered blackhorn 209 powder absolutely wouldn't run in my CVA without buying an aftermarket modified breech plug.
Also, after installing open sights on my rifle, I discovered I couldn't get a low enough cheek weld to use them because of the raised comb which was designed for using a scope. Had to get a new stock to use the open sights.
Get out early so you have time to make modifications you may need.