Ok I am not fan of recoil so .30 cal or .50 cal rifles I am not interested in. I am looking for advice regarding the following requirements...
I have decided I want to use the 7mm magnum round
I would like hit a Toonie at 500 meters with min rounds used.
I would like hit a Toonie at 1000 meters with min rounds used I am patient if it takes a box or two I am ok with this.
A toonie at 500 yards is an incredibly challenging target. Google up "egg shoot", in which an egg is shot at 500 yards, by people using all-out BR gear. They hit it from time to time, but it is one damn hard target.
I want lots of speed and foot pounds
Want to use factory ammo... Apartment manager would probably pissed if reload in apartment....
Any particular reason you want lots of speed and lots of foot pounds? These tend to work against you (more recoil), or at least make it more challenging, shooting-skill-wise, to attain a given degree of accuracy.
To do this with factory ammo will be a tall order - somewhere between "highly ambitious", and "forget about it". Recall that the people (occasionally) hitting eggs at 500 yards are hardcore BR shooters - what guys like that do to their ammo, makes long range target shooters like me look like the lazy(ish) handloaders we are.
If factory ammo is a requirement, the very best choice you could make would be to get a .308W. It has by *far* the best availability of high quality, good-shooting match ammo. The very best .308W factory match ammo will cost $2+ per round; for 500 yard shooting, it will shoot as well as most good handloaded ammo. If you want to shoot at longer range (800m and beyond), most factory match ammo will really start to fall behind what is achievable by carefully made handloaded match ammo.
A toonie at 800m is not a realistic target, it's something you can put in the middle of your target which will be at risk of being struck by a bullet from time to time. On a good day (good shooter, good rifle, good ammo, little to no wind) you might have a chance of getting 1 hit on the toonie out of every 20 you fire.
If you increase the distance to 900m (it doesn't sound like that much of an increase in difficulty, but it _is_!), your hit rate will fall a _lot_.
If you increase the distance from 900m to 1000m, your hit rate will *really* plummet. Under good conditions, one hit for every fifty or hundred shots fired, might be a reasonable goal.
What barrel do I get? Twist? Grooves? Length? Action? Stock? And scope?
I am a machinist and like precision maybe to much...
Any good match barrel will do the job. Number of grooves doesn't matter much if at all. Twist rate should be one that is commonly used for the bullet(s) you'd like to fire (for a .308 you'd probably want a 11" to 13" twist rate). Barrel length not terribly important; you're 95% likely to choose something between 24" and 32" once you have taken all the factors into account.
Any good stiff precise target action can be used; there are dozens of really good ones to choose from. Scopes, similarly. Stocks, similarly.
Have a look at what sort of "F/TR" rifles are being built and winning matches today - that's what you want.
No guts, not glory!
