Getting ready to try out my new .300 blackout rifle. The warranty instructions say I should fire one round and then clean the barrel and chamber, and repeat this 10 times. Then fire 10 rounds and clean. Then I can go up to 100 rounds and clean. I always keep my guns very clean, but this procedure seems excessive. I will likely follow it, but I wish they would say why when they tell you to do something that seems unusual.