777 will leave a hard ring of build up at the ignition point.
some of that is mitigated by using only natural lube and not mineral oils
if you use anti-seize on the threads put it in back it out a 1/4 turn then go in till it touches but is not tight the crud ring doesn't seem to be hard on getting the breach plug out
it isn't that hard to clean
for hunting where you take 1-3 shots between cleaning it really isn't bad
if you have a range close , making multiple trips firing only 1-3 rounds and really keeping track of round one can help to get you ready , and develop a cleaning routine that gets consistency.
in muzzle loader hunting every round is essentially a clean cold bore round , so practicing that clean cold bore round is ideal.