Aussie Mike,
I'm in pretty good shape for the shape I'm in at 70 but a 20 lb. rifle will pack my poop after a couple of days in 120 degree heat on an elephant track...Now you youngsters that are full of piss and vinegar and just had your balls drop, and the testosterone is flushing from head to toe may be able to pack a heavy gun that far, but 99% of you can't afford an elephant hunt until your 60 years old...so thats my point! Call me in 40 years and we'll reinstate this converstation!

Btw, my new elephant gun is a Brno 22 9.3x62 that weighs 7 lbs....comes in handy at my age when you can't walk fast enough to catch them anyway!