What Shotgun Ammo Should I Use? Buckshot, Slugs, and Birdshot Explained
Birdshot (sizes #9 to #1) is for birds, clays, and small game — tiny pellets at high count. Buckshot (sizes #4 to 000) is for self-defense and deer hunting — fewer large pellets with serious stopping power. Slugs are single large projectiles for big game hunting and situations requiring precision at range. For home defense, use 00 buckshot. For bird hunting, use #6 to #8 birdshot. For deer, use slugs or 00 buckshot depending on range and regulations.
Why It Matters
Shotgun ammunition is the most diverse of any firearm platform. The same shotgun can fire tiny pellets for dove hunting, massive buckshot for home defense, or a single slug that hits like a .72-caliber rifle. Using the wrong load for the situation is at best ineffective (birdshot for defense) and at worst dangerous (slugs at close range in a home with family members on the other side of walls). Matching ammunition to purpose is essential.
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Birdshot (for birds, clays, and small game):
- Size #9: 585 pellets per ounce, smallest common size, skeet and close-range clays
- Size #8: 410 pellets per ounce, standard trap and skeet load
- Size #7.5: 350 pellets per ounce, all-around clay and small bird load
- Size #6: 225 pellets per ounce, pheasant, dove, quail at moderate range
- Size #5: 170 pellets per ounce, pheasant at longer range, grouse
- Size #4: 135 pellets per ounce, ducks over decoys, large upland birds
- Size #3: waterfowl, large birds
- Size #2: geese, large ducks, long range
- Size #1: geese, large waterfowl at distance
- BB: geese at long range, predator (coyote)
- Lead birdshot: standard for upland and clays
- Steel birdshot: required for waterfowl (federal law), less effective per pellet than lead
Buckshot (for defense and deer):
- #4 buckshot: 21 pellets of .24 caliber per shell
- Good for reduced wall penetration in home defense
- Effective to 25 to 30 yards
- #1 buckshot: 16 pellets of .30 caliber per shell
- Some ballistic experts consider this the optimal defensive load (pellet count × pellet size)
- Less common than 00 buck
- 00 buckshot: 8 to 9 pellets of .33 caliber per shell
- The standard defensive and law enforcement load
- Effective to 35 to 50 yards depending on choke
- Federal FliteControl wad keeps tight patterns
- 000 buckshot: 6 pellets of .36 caliber per shell
- Maximum penetration per pellet
- Less common, more recoil
Slugs (single projectile):
- Foster slug: rifled slug fired from smooth bore, hollow base helps stability
- Weight: 1 ounce (437.5 grains) for 12-gauge
- Effective to 75 to 100 yards from smooth bore
- Use with Cylinder or IC choke only
- Brenneke slug: solid lead slug, more penetration than Foster
- Effective for large game and barrier penetration
- Sabot slug: designed for rifled shotgun barrels only
- Plastic sabot around a smaller-diameter projectile
- Effective to 150 to 200 yards from a rifled barrel
- Do NOT fire sabot slugs from a smooth bore (poor accuracy)
- Do NOT fire Foster/Brenneke slugs from a rifled barrel (lead fouling)
Specialty ammunition:
- Tungsten Super Shot (TSS): extremely dense, extends effective range significantly
- Popular for turkey hunting, allows smaller gauges at longer range
- Expensive: $5 to $10 per shell
- Reduced recoil loads: less powder charge for lower recoil
- Excellent for smaller shooters, training, and home defense (still effective)
- Dragon's breath, bean bags, rubber: exist but not practical for civilians
Home defense ammunition choice:
1. Federal FliteControl 00 buckshot (best overall)
2. Hornady Critical Defense 00 buckshot
3. Federal #4 buckshot (for thin-wall concerns)
4. Reduced recoil 00 buckshot (for recoil-sensitive shooters)
Build Impact
Pattern test every defensive load in your specific shotgun at 5, 10, and 15 yards — do not assume all buckshot patterns the same. Federal FliteControl typically patterns significantly tighter than conventional buckshot at all distances. Keep 25 rounds of your chosen defensive load on hand at all times. For hunting, buy a variety of loads and pattern them at your expected shooting distances with your preferred choke to find what your gun shoots best.