RE: 308 or 270
My 6.5x55 is going to my youngest son. He doesn't hunt much now but he may later in life. I am tired of reloading for upteen dozen calibers. Having dozens of powders and ten shelves of bullets is getting old. I can always borrow them back from my kids if I want to but I need to scale back yet don't want them just settting in the safe.
I have hunted with about every caliber out there but have taken the most deer with the 6.5x55, 308 and 30-06. I have owned and used the 300 Win Mag and Weatherby Mag for deer and once even used a 416 Rem Mag. I guesss about the most bang,flop kills have been with the 270. The 6.5x55 did a very good job but mostly because you coulkd hit a dime every time at 100 yards the Swedish Mauser it came in was a real tack driver.
When I shot steel silhouettes all the time I loaded the 190 grain Hornady BTHP's they were extremely effective on deer as well. The last few years I have been loading the 150 grain Sioerra Pro-Hunters and they have worked real well too. Having used them all, I have seen very little diference in performance from the 300 Mags and the 270, 280 and 30-06/308. So it really is tough to rule any of them out for deer hunting. My other two favorite have been the 250-3000 and the 25-06. ( after I started using Nosler ballistic tips ).
Most of my shots on deer are from 100 yards to 250 yards. ( prarie hunting )