Now normally a 30-06 18 inch carbine is carried for Point Blank Range (300 yards or less) snap shooting in areas that have a restricted swing arc while stalking afoot. Many are equipped with only irons in order to keep carry weight down. Depending on the expected size & weight of the game hunted heavy for caliber projectiles are usually used to ensure deep penetration. For 500-600 yard shots from the prone position a 22 inch barrel that matches the burn rate of most powders that correspond to the velocities required of a 30 caliber projectiles would be recommended, as snap shooting at 500-600 yards is Olympic quality shooting or better. (Not really practical for the average JOE) I understand that everything is a nail if you only have a hammer, but using the proper tool for the job makes for better craftsmanship. If you intend to shoot at 500-600 yards purchase a tool that fits that purpose. Otherwise, enjoy your carbine at point blank ranges and stalk until within 200 for offhand or 300 yards if you can get support or a prone shot. A 8 pound hunting carbine that you can carry afield for perhaps a month to take one shot and fill your tag, vice carrying a 12+ pound scoped rifle afield with a 26 inch barrel in thick brush catching on everything becomes more enjoyable as time and tide come to pass. JMHO.