I have used the .284 Win in a Ruger M- 77 bolt action since '72-- bought it brand new, great caliber, I hand load mainly 140 Nosler Partition bullets, pointed soft points, & 57 grains of # IMR 4350 powder, Winchester L R Primers. Great killing bullets/cartridge, flat shooting, have taken caribou, elk, deer, moose, antelope. New cases from Norma are available from Bullets.com, I just got 200 new. Faster than ordering from Winchester direct. Sight in at dead on 25 yards, puts you + 3 inches high at 100, 3 1/2 high at 200, dead on zero at 275 yards, --2 inches at 300 yards, -- 7 at 350 yards, --- 12 inches at 400 yards, --- 22 inches at 500 yards. Very good in the wind, little drift. I also put a Muzzle Brake on the barrel so I can see the bullet hit the target right thru the scope. On my second barrel now-- wore out the first 27 years ago. Only drawback--- not much availability for ammo unless you hand load it. Really great cartridge !!
But, if I did it all again, I would select the 7 M M Rem Mag in a Rem 700 bolt action & put a muzzle brake on it, & a 4x12 Burris scope, & a Harris Bipod for sitting or prone position. I am the sniper type hunter. You can get 7 MM Rem Mag off the shelf anywhere, the ammo that is. Do not have to hand load it--- great ammo off the shelf now ! Also, when I got the .284 in '72, muzzle brakes were not widely available then. You would need a muzzle brake on a 7 MM Rem Mag., my son has a rifle just as I described here--- does not get any better than that for anything in North America. Even for big Alaskan brown bears, all you need is 175 grain Noslers & you are ready to go. Hope this helps you out ! Drop me an E Mail with any questions, happy to assist you in any way.
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Best Wishes, Jerry Gold in Ft Collins, Colorado