Isaac22lr
.22LR
I dont believe "everyone" does insist. But the 00 is very commonly available and fairly well documented. I and many others echo your like of other buckshot rounds shooting a 20bore alot i like the #3 buck. But ive said before if i have no doubt im going to have to put an invader down now, no question its a slug center mass. I would love to see the gun rags and "professional writers" spend more time on preaching situational awareness and skills than metallurgy and penetration statistics designed to sell brand X.
I actually agree with you on that. I just try to let people be aware, if you are going to use 00buckshot it is most likely going to over penetrate.
As for the ammo I choose, my maverick is loaded with a federal slug, then federal #4 buck. And the side saddle is all slugs. People have it so backwards on shotgun ammo, they think foster slugs penetrate more, however they penetrate about 16” while 00buck penetrates 25”+.