rdles
ah thank you MerrySkeleton sir for explain to me. So you recommended 12 gauge buckshot ammo instead of slug ammo? Wouldn't slug do more damange? Or probably miss the brainstem since it not spread out like buckshot.
eta: And thank you Sir siray for explain to me. So if you aim too high you might survive?
I sure read something about some people damage their face with the shotgun but still survive.
Might as well jump off a 1,000 feet bridge to concrete then, that probably higher chance of dead for me.
The weight of the load in a shotgun cartridge remains the same regardless of pellet size, about 30 gm for a 12 bore/2
3/4 inch cartridge. The smaller they are, the more of them. There are typically 9 large pellets in a 12 bore buckshot cartridge, and about 225 much smaller ones in a Number 6 shot cartridge.
As the load acts as a single compact mass over the first metre or so before it starts to spread, it doesn't really matter what size of shot you have - the muzzle energy will be approximately the same, and the entry wound will be a single hole, about 20mm in diameter for a close contact 12 bore shot. Once inside the skull the pellets disperse, sometimes bouncing off each other in a snooker ball style, pulpifying the brain. Birdshot is quite sufficient for this.
The advantage of heavier shot (say buckshot) or slug is that the heavier projectiles retain velocity (and thus kinetic energy) over a greater distance. Slug has the additional benefit of gyroscopic stabilisation as the casting of the missile mimics the effect of rifling. These advantages are not required in the case of a close/hard contact shot.
In the case of a contact shot, with a shotgun, a huge volume of expanding gas enters the wound. Soft tissue may be able to accept the expansion, perhaps with ballooning of the skin and tearing around the edge of the wound, but where the gas is enclosed inside the vault of the skull then this causes the exploding head phenomenon.
When euthanasing an animal with a shotgun it is best to leave a gap of about 200mm between muzzle and head in order to let the gas cloud disperse and thus avoid the distressing sight of an exploded skull, also to prevent possible overpressure damage to the relatively lightly constructed shotgun barrel.
In essence, for the purposes that a shotgun is of interest to users of this forum, don't worry about shot size.