I'd personally be dubious about using any jacketed round for dispatch of livestock - anything high velocity runs (to me) an unacceptable risk of going straight through, and ricochet then is a possibility.
Most of my farm dispatch has been on sheep, for which wither a 22LR or (preferably) a 410 shotgun will do the job every time, with far lower ricochet chance.
Don't let the end of the barrel come into contact with the head (pressure spike risk), take the shot if possible from 6" or so away, and 14grammes of any shot in a 410 will act like a solid slug - but with the benefit that it will 'spread' once inside the skull, and cause catastrophic damage and instant death.
I've used 22LR in the past when requested to, and have found that a second follow up shot is sometimes useful (still breathing, though probably rapidly expiring) whereas the 410 it's over instantly.
These days I have a moderator for the 410, so it's a lot more suitable inside farm buildings or with other people or livestock in the vicinity, and, as I said, I think it's a far more effective tool for the job
Most of my farm dispatch has been on sheep, for which wither a 22LR or (preferably) a 410 shotgun will do the job every time, with far lower ricochet chance.
Don't let the end of the barrel come into contact with the head (pressure spike risk), take the shot if possible from 6" or so away, and 14grammes of any shot in a 410 will act like a solid slug - but with the benefit that it will 'spread' once inside the skull, and cause catastrophic damage and instant death.
I've used 22LR in the past when requested to, and have found that a second follow up shot is sometimes useful (still breathing, though probably rapidly expiring) whereas the 410 it's over instantly.
These days I have a moderator for the 410, so it's a lot more suitable inside farm buildings or with other people or livestock in the vicinity, and, as I said, I think it's a far more effective tool for the job