I started using plugs (used to use them off and on before that) for grouse when I switched from 28" barrel to 14" barrel (12 ga)
Big game I haven't used plugs but should try to make an effort. There have been a couple of occasions I would have had plenty of time, but those occasions are the exception and not the norm.
Pretty sure 1 or to 2 shots a year with the 30-06 my ears will still out last the rest of me.