Seen 2 people intentionally shot with 00 buck. One was about 90 yards away on foot, the other was through a windshield. Neither died but both were stopped. One deer about 50 yards, it went down like it was hit with a hammer but required finishing shots. Never seen anything shot with #4 buck. Just my .02
a 90 yard shot at anything with 00 buck is always a bad idea.
I hunted in a state for 27 years that only allowed Buckshot...One Buck a year and a doe during doe day. We used 00 and 000 when available. These were shots up to maybe a max of 50 yards out of a cylinder bore and in most cases a modified choke. We used #4 Buck a few times on deer and it was pretty effective as well. Inside a house confronting an intruder I doubt it makes a gnats azz difference between all the loads except birdshot.
