I think you should get your feet wet with a Remington 700 5R or other good quality .308 Win. factory bolt rifle first. Reason? I took one look at the bottom of your post and saw the modest collection of firearms that you appear to own. What your considering is analogous to just getting your driver's license and buying a Corvette for your first car.
Seriously, think about it.
I have been looking at the Cheytac M300 in either a 300 or .308 Win. I would love to have a 408 but I want to be more realistic with what I shoot and think the 300 would be perfect to replace my A-bolt 7MM.
^^^ Both the .408 & .416 cartridges are a total waste of money, effort, and time for the distances the OP wants to shoot. Unless he's got deep deep pockets and/or a steady supply of ammo or reloading components to roll his own, he'll be waiting a lot longer than hours in the field to get that perfect shot.
OP, what exactly is the perfect shot that you're waiting so long for? I'm trying to give you the benefit of the doubt here but my BS detector rings loudly in my ears when I read a manufactured statement like that.
Sorry I missed this.
I agree on the 408 and 416 hence why I stated I was looking at the 300 in the first post. I want to shoot and shoot a lot but I don't want to have to sell my soul to do it, I do plan on adding a couple of .308's to my inventory (Norinco M305, and RFB)
The perfect shot for me is a shot that should kill the animal without wounding it and not require a follow up shot. When hunting the valleys I grew up shooting in there was a lot of cover for the deer to hide in and often the deer stayed very close together so I would have to wait for an animal to expose itself and then be separated from the others to ensure I only took the animal I wanted. I would lay prone on a high feature, arriving well before light to limit the disturbance to the game and wait. Some morning I would be lucky and the deer would be more active and mobile and I would be on the way home before lunch other days I would be waiting all day only to see does or small spikes or just before last light I would see one I would take.
The biggest thing I have learned about shooting at distance (at least for me) is patience and composure. Keeping calm and breathing normally through my mouth to not fog my lens was always the key for a clean shot.
With being military and having been very busy being deployed more than 9 months a year for the past 5 years my skills have not been maintained as I would have liked but now with my recent relocation to NB and having a very nice range less than 30 mins from my house and a large group of friends that all enjoy shooting we have been spending much more time out shooting but I would like to start shooting competitively once I get much more practice under my belt. I wanted to get the rifle this year so that I have a full year to get as much ammo down range as possible and learn the weapon and its abilities and limitations before entering some competitions with it next year.