Is there a magazine capacity restriction for big game hunting? (Deer, elk, etc).

There isn't a magazine size restriction for hunting big game.  The restrictions we do have are listed below:   IDAHO WEAPON RESTRICTIONS   Rifle and Shotgun   In any hunt, including any-weapon seasons, it is unlawful to pursue or kill big game animals:   • By any means other than approved firearms, muzzleloaders and archery methods.   • With any electronic device attached to, or incorporated on, the firearm or scope; Except scopes containing battery powered or tritium lighted reticles are allowed.   • With any firearm that, in combination with a scope, sling and/or any attachments, weighs more than 16 pounds.   • With any fully automatic firearm.   • With any shotgun using shot smaller than #00 buck.   • With any rimfire rifle, rimfire handgun, or muzzleloading handgun, except for mountain lion.   Short-Range Weapons   In big game seasons restricted to short-range weapons, it is unlawful for hunters to use any weapon other than a muzzleloader, archery equipment, crossbow, a shotgun using slugs or shot of size #00 buck or larger, or a pistol using straight-walled cartridges not originally developed for rifles.   Muzzleloader Caliber Requirements   In any hunt, including general any-weapon seasons and short-range hunts, it is unlawful to pursue or kill big game animals:   • With any muzzleloading rifle or musket that is less than .45 caliber for deer, pronghorn, or mountain lion; or is less than .50 caliber for elk, moose, bighorn sheep, mountain goat or black bear.   Muzzleloader-Only Season   Any person hunting in a muzzleloader-only season, including controlled hunts must have in their possession a license with a muzzleloader permit validation. During a muzzleloader only season, it is illegal to pursue or kill a big game animal with any firearm, muzzleloading pistol, or weapon other than a muzzleloading rifle or musket. In addition, the muzzleloading rifle or musket must be:   • Capable of being loaded only from the muzzle.   • Equipped with only open or peep sights. Scopes and any electronics are prohibited. Except hunters with a visual disability may apply for a permit to use nonmagnifying scopes. (Applications are available at Fish and Game offices).   • Loaded only with loose black powder, loose Pyrodex, or other loose synthetic black powder. Pelletized powders are prohibited.   • Equipped with a single or double-barrel.   • Loaded with a projectile that is within .010 inch of the bore diameter. Sabots are prohibited.   • Loaded with a patched round ball or conical non-jacketed projectile comprised wholly of lead or lead alloy. • Equipped only with a flint, percussion cap or musket cap. 209 primers are prohibited.   • Equipped with an ignition system in which any portion of the cap is exposed or visible when the weapon is cocked and ready to fire.