I guess muzzle loaders can only fire so fast and only get to a certain heat level, problems may not come from it unless you fire it many times in a row and get it heated up.
It does look real purty though!!!
Here it is loaded in the case, I shot the trail boss first 5 shots and then the 5 imr 4198 right after. Barrel barely warm, but like you said we will see as I am still new to this rifle and the whole powder coat thing. Just having fun.