The .243 would be an excellent caliber for what you required. It is easy to shoot and reload and is more than capable of cleanly killing both goats and deer.
The .243 also has the advantage of probably having a higher resale value as its more popular with internet experts.
Actual international sales figures may suggest otherwise...
I've owned and operated both calibres and I'd go for the .243 for the situation that you have described.
I'm sure you'll get heaps of advice on these two and many other calibres...
In the end, as I've said before, what caliber you get doesn't matter that much as a good man will own many different calibres over his life! ;-)
Just my opinion.
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