Hmm! Good discussion. After a couple years of training and completing the NRA rifle and marksmanship program I was 14 and old enough in 1962 to buy my first deer license. The NRA training was my mother's requirement for me to hunt. Good rule mom. I borrowed my uncles 30-30 Marlin lever action and harvested my first buck on my grandparents 80 acres. Followed up the next year with another buck with my grandmothers 30-30 Winchester 94. Both bucks took multiple shots with the 170 grain round nose bullets and some tracking to find. My dad told me to buy a 300 Savage as he had herd this would knock a deer right down. I found a very used model 99 Savage take down in 300 Savage with an old Bushnell 3x scope and bought it for $99 including a case and 2 boxes of 180 grain pointed soft points. Harvested my buck that year and dad was right as it knocked the deer right down and he stayed down. After using that Savage to harvest several deer I got the itch to hunt out west in the Rockies and bought a 30-06. Harvested my first mule deer with that rifle with a 250 yard cross canyon shot. The hunters out west recommended I try a 270 Winchester for my next hunt. I bought a 270 Winchester and hunted deer, elk and bears with it over the next 20 years. Great caliber but the 130 grain cup and core bullets then available left something to be desired in terms of weight retention and penetration depth. I shot that 270 in steel silhouette competitions and did very well and learned to shoot out to 500 meters. Shot the throat right out of that 270 with 3100 FPS loads. I got the 300 Weatherby from my uncle when he was older and did not hunt any longer. I loaded the then available 165 and 180 grain cup and core bullets as fast as I possible. Harvested everything including deer, elk and bears with great authority. Switched to the all copper Barnes bullets in the 300 Weatherby in 2001 and have been very happy with those. I found a lighter weight all copper bullet performs very well with great penetration and weight retention.