WHAT CALIBER. from what you said,for elk yes at about 100-150 yards.For mulies,i would use a 270,7mm mag,a flat shootin cartridge,cause you might have to make a long shot,it would be good at 100-150 yards to.
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"If Its Brown Its Down,If It Flies It Dies"
Yes, the 338 marlin express will make a great elk rifle.
Hornady lists their ammo at over 2500 fps at the muzzle but even at 2400 fps it will make a fine elk rifle.
Provided you can get it there accurately it will do just fine on a 300 yard poke at an elk.
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