Search:

Sorry, I'm not trying to argue, see my first post(s), it was about getting out there, shooting with any of the standard deer hunting calibres and brands in NZ.
Honestly the deer isn't going to...

From the Federal website.

.308 Win 150gn.
ENERGY IN FOOT POUNDS
MUZZLE 100 Y 200 Y 300 Y 400 Y 500 Y
2648 2134 1702 1341 1044 807

7mm-08 Rem 150gn
ENERGY IN FOOT POUNDS

It certainly has basis if you are shooting at 600m plus with hand loaded ammo.
But for someone getting into deer hunting, bush hunting, with a new rifle, shooting factory ammo soft points, such long...

You're welcome.
Also tell him to show a chart mapping out his theory with average factory ammo for each calibre, say:

Federal powershok 150gn 7mm-08 Rem soft points
Federal powershok 150gn .308...

No difference in noticeable stopping power, whoever told you that is a muppet.
Both calibres have the same effective range, 7mm-08 with factory ammo will have slightly less felt recoil.

Nothing wrong with this either.

Howa 308 with nikko stirling diamond scope | Trade Me

I would get a Tikka T3 or Marlin XL7 then.

Marlin XL7 7mm-08 | Trade Me

Actually I would get a .22lr rimfire first. Like a bolt action CZ or Marlin.
Go out and shoot it, learn good habits and then look at a centre like a 7mm-08, .260, 6.5x55 or .308.
Any of those will...