Re: First time Long Range Rifle
If he wants a Savage in 30/06 try the 116 FCSS w/ 22" barrel. It is the Weather Warrior series and will do 400 yards no problem. Talk scopes with him but his choice of caliber and rifle is about fixed. The 30/06 is a great round and will hammer a deer at 400 yards with pretty reasonable drop.
All of the magazine comparisons where they do shoot offs put the Savage at the front of the pack for factory rifles. Not that a up grade barrel on another action won't do better but the Savage is at a good price.
Really any of the recommended cartridges will work but a scope is a big part of the picture too. 12X at least, 50mm front end, 30mm tube for adjustment range and stiffness, quality glass and rings to match. Talk him into spending a bit on the top end of the rifle. He's already made up his mind on the rest.