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This is not the full law. Consult the Division of Fish and Wildlife for further details. All persons are reminded that the statues, code and regulations are the legal authorities.
From the N.J. Fish & Wildlife Digest, A Summary of Rules and Management Information
Vol. ? No. ? AUGUST

Legal Arms for Hunting - Firearms and Missiles

For the purpose of hunting in New Jersey, firearms refer to shotguns, muzzleloaders (rifled or smoothbore), air guns and modern rifles.

* Possession and use of silencers are illegal on any firearm. Title 2C:39-1 g. classifies a firearm silencer as "any instrument, attachment, weapon or appliance for causing the firing of any gun, revolver, pistol, or other firearm to be silent, or intended to lessen or muffle the noice of the firing of any gun, revolver, pistol or other firearm." Pursuant to Title 2C:39-3 c. "Any person who knowingly has in his possession any firearm silencer is guilty of a crime of the fourth degree."
* A person may not go into the woods or fields with a firearm except during prescribed seasons.
* It is unlawful to possess in the woods and fields shot larger than #4 fine shot except for hunting deer, bear, waterfowl, woodchuck (farmers only) and coyote/fox during the Special Permit Coyote and Fox Season. This shall not apply lawful use of ammunition for air guns.
* Rimfire and centerfire rifles are not legal to hunt deer.
* See sections on specific game animals for permitted firearms and ammunition in the game code.
* No person shall use a shotgun capable of holding more than three shells at one time or that may be fired more than three times without reloading except for the September Canada goose season and during a light goose conservation order season, if any.
* Pursuant to Title 2C:39-1 f., air guns are classified by definition as firearms. Title 2C:39-1 g. classifies a firearm silencer as "any instrument, attachment, weapon or appliance for causing the firing of any gun, revolver, pistol, or other firearm to be silent, or intended to lessen or muffle the noise of the firing of any gun, revolver, pistol or other firearm". Pursuant to Title 2C:39-3 c. "Any person who knowingly has in his possession any firearm silencer is guilty of a crime of the fourth degree."

Air Guns
"Air gun" means any shoulder-mounted firearm which by the force of a spring, air or other nonignited compressed gas expels a missile or projectile and has a rifled or smooth barrel, using ammunition no smaller than .177 caliber and no larger than .22 caliber producing projectile velocities of not less than 600 feet per second measured at the muzzle. Pursuant to Title 2C:39-1 f., air guns are classified as a firearm. Air gun BBs are not legal for hunting. Air guns are now legal for taking cottontail rabbit, hare and gray squirrel. A rifle permit is not required. Modern air guns have sufficient power to take small game plus are quieter and lighter than some shotguns, making them an ideal tool for smaller-framed hunters. Air guns hunting information is now part of the basic shotgun hunter education course.

Muzzleloaders
It is unlawful to use smokeless powder in a muzzleloader while hunting in New Jersey. Only black powder or black powder equivalents, such as Pyrodex and Triple Se7en, may be used with a muzzleloading firearm when engaged in hunting. Properly licensed and permitted hunters 10 years and older may hunt with a muzzleloading rifle. A valid rifle permit must be possessed while hunting with a muzzleloading rifle. Permitted action types include percussion, flintlock and inline. Electronic ignitions are not legal. For muzzleloader barrel types and legal hunting ammunition, see regulations for each game species. It is unlawful to hunt with a muzzleloading rifle on WMAs, except for deer, bear and during the special seasons for coyote/fox and squirrel hunting. For muzzleloader rifle squirrel hunting, see page 62. For muzzleloader deer hunting, see page 30. For rifle permit information, see page 12. For muzzleloader coyote/fox hunting, see page 60. Rifles, Modern
A valid rifle permit must be in possession while hunting with a modern rifle. Rifles for small game hunting are allowed using limited types of .22 caliber rimfire ammo and are legal only for taking woodchuck (ammo restrictions, page 62), raccoon and opossum with hounds (.22 shorts only) plus coyote and fox (ammo restrictions, page 60). NO rifle woodchuck hunting on wildlife management areas or state parks, forests and recreation areas. Small game hunting with centerfire rifles is limited to not larger than .25 caliber for coyote and fox (see page 60) and .25 caliber or larger for woodchuck (see page 62). See also Firearms and Missiles, page 24. A modern rifle magazine need not be pinned (plugged), but may be loaded with no more than three cartridges. Rife permit holders of all ages may hunt with all rifle types as allowed by New Jersey laws. See chart on page 62 for details on small caliber rifle ammunition legal for hunting woodchucks and page 60 for the special permit coyote/fox season. Shotguns Shotguns larger than 10-gauge are prohibited for hunting. Shotguns may not be capable of holding more than three shells except for September Canada goose hunting; see page 68. For information on legal shot sizes, see regulations for each game species to be hunted.

List of Legal Arms and Ammunition
Season(s)	Weapon Type	Gauge, Caliber or Weight	Projectile(s)	Firearm sights;Bow Releases
Fall Bow Permit Bow Winter Bow It is unlawful to use a bow and arrow for hunting deer while using a firearm license or shotgun or muzzleloader deer permit.	Bow long, recurve or compound	35 pounds pull at archers draw length (long and recurve bows) or peak weight (compound bow)	Arrows must be fitted with a well sharpened metal broadhead with a minimum width of 3/4"	Hand-held release devices are permitted
Permit muzzleloader	Muzzleloader - rifle or smoothbore, single-barrel, single-shot. Flintlock, percussion and in-line ignitions. Double-barrel firearms are prohibited.	Rifle - not less than .44 caliber Smoothbore - not smaller than 20 gauge and not larger than 10 gauge	Must be loaded with a single projectile only	Telescopic sights permitted
Six-day firearm	Shotgun - single or double barrel, rifled bore or smoothbore	Not smaller than 20 gauge and not larger than 10 gauge, capable of holding no more than 3 shells	Slugs - lead, lead alloy or copper rifled slug or sabot slug Buckshot - sizes not smaller than #4 nor larger than #000 (0.36")	Shotgun must have an adjustable open iron or peep sight or a scope affixed if hunter is hunting with or in possession of slugs.
Six-day firearm	Muzzleloader - single-shot, single barrel riffle OR single or double-barrel smoothbore shotgun. Flintlock, percussion and in-line ignitions permitted	Muzzleloading Rifle - single shot not less than .44 caliber Smoothbore - single or double-barrel not smaller than 20 gauge and not larger than 10 gauge	Muzzleloading Rifle - single projectile Smoothbore - buckshot not smaller than #4 (0.24") nor larger than #000 (0.36")	Telescopic sights permitted
Permit shotgun	>Shotgun - single or double barrel, rifled bore or smoothbore	Not smaller than 20 gauge and not larger than 10 gauge, capable of holding no more than 3 shells	Slugs - lead, lead alloy or copper rifled slug or sabot slug Buckshot - sizes not smaller than #4 (0.24") nor larger than #000 (0.36")	Shotgun must have an adjustable open iron or peep sight or a scope affixed if hunter is hunting with or in possession of slugs.
Permit shotgun	Muzzleloader - rifle or smoothbore, single or Double-barrel smoothbores only. Flintlock, percussion and in-line ignitions permitted.	Not smaller than 20 gauge and not larger than 10 gauge	Buckshot - sizes not smaller than #4 (0.24") nor larger than #000 (0.36") or a single projectile.