August will be a good time to go. But I'm with Alan. Any Buffalo wandering round Derby, has most likely fallen off the back of a truck!

Donks are a different consideration. I've always found them pretty tough. I hit one mangy Jack, 5 times in the chest with a .303, with 180gn soft points at 30 meters. And he still needed a finishing shot when I got to him. If you do chest shoot, be prepared for plenty of claret.

Mind you, they often stand there looking at you. So a brain shot is usually quite easy. And they drop like a stone. But your .270 will be fine.

But having said that, if you want a new rifle, just buy one.... Who needs an excuse?