Another fun fact that I’ll add is that ammonia will break down antlers. I learned this by accident when I left a skull in the bucket too long. That being said I used 10% ammonia, a couple cups in 4 gallons of water. Pretty strong stuff. Maybe the weaker stuff diluted in water wouldn’t effect them but this sure did. I could push my fingernail about 1/16 into the antler. It was soft.