I’ve had luck with peroxide…Bleach will make the bone brittle…good luck…also check around the internet on do it yourself european mounts, you should be able to find some tips….jay
No need for any boiling since it looks like you have done a good job getting the meat off. Just head up the road to Cabela’s and get a whitening kit. I used one from there and I think it worked out well.
We clean all the meat off by hand the best we can then we take the pressure washer to it. That really gets it clean. Then we wrap the skull in a bag and dump peroxide in it and leave it in there for a few days. Slush it around when ever you walk past it. Should look like this one.