270 is Lots If You Can See!!
I have a trapping partner who has dumped many a moose with a 243. I am talking about 35 years in the bush and no losses yet. In his opinion its all about knowing your gun, waiting... for the proper shot and it may not present itself, practice lots, and if it's risky Forget it!!
This guy has poked them in the nose straight on, boiler room on the side, head shots, and hump shots with a 243 Colt and a 3x9 Redfield with wicked results. Personally I shoot a 300WSM now with a scope but I shot a 308 peeper for years until the eyeballs started to show their age. Back in the day my father was a 30-30 man probably like most of yours and I don't remember any woundings growing up and we were raised on wild game. I remember conversations like "Why the hell would anyone one of them cannons" referring to a 303. These guns today (my 300 included) shoot way farther than most hunters should attempt in my opinion.:moose: