If I won a new Ferrari, that's the first thing I'd do with it. I have no need for a car that'll go 180mph and costs $40,000 to tune up every 10,000 miles and burns premium gas at 10mpg. I wouldn't put one mile on it. I'd load it onto a flatbed (carefully), and find a buyer.

Regarding powder efficiency. Do you deny that a WSM can produce as much or more velocity/grain of powder than its standard mag counterpart? The numbers don't lie. I know that I couldn't affort $75/box for ammo. I buy guns to shoot them, and at $75/box it'd sit in the safe. What's the barrel life expectancy with a .30-378? 500 shots? That's 10 trips to the range for me. Like I said, I like to shoot my rifles, and won't own one that won't be shot regularly at the range. It's a matter of personal preference. The fastest .30cal I'd even consider is the .300 RUM, and I doubt I'd ever buy one since my .300 WSM is enough gun for my needs. Like I said, if he doesn't mind spending the case to feed that beast, and doesn't mind feeling like he's been slapped upside the head by muzzleblast and punched in the shoulder with recoil, then more power to him. It's just not my kindof rifle. I'd sell it straight away and buy a Sako 75 in a lighter, more reasonable cartridge. That's my preference.

Mike