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Orders placed at this time are estimated to take 1 to 2 business days to be shipped out of our warehouse, then normal UPS ground transit times from our warehouse in Oklahoma to you. FREE SHIPPING on any order with a subtotal of $200 or more.

20 Gauge Ammo

Shop 20 Gauge Ammo – Bulk Deals In Stock Now

Explore a full selection of 20 gauge shotgun ammunition at SGAmmo, your trusted source for high‑quality shotgun ammo at warehouse‑direct prices. We carry top brands like Winchester, Federal, Hornady, Sellier & Bellot, Lambro, and more—featuring birdshot and buckshot loads for hunting and clay target shooting, as well as rifled slugs, sabot slugs, and reduced‑recoil slug options for serious shooting or personal protection.

Developed in the late 19th century, the 20 gauge has been prized for its lighter recoil and versatile performance—making it a long‑standing favorite among upland hunters, sport shooters, and tactical users who want efficiency without compromise. Whether you're stocking up for dove hunting, skeet practice, or close‑range defense, 20 gauge ammo delivers a balanced, adaptable solution.

All items are in stock and ready to ship immediately—no backorders or drop shipping. With competitive pricing and reliable fulfillment, SGAmmo makes it simple to get the 20 gauge ammo you need quickly. Whether you’re preparing for a hunting trip or hitting the range, you can count on fast service and quality products. Browse now and take advantage of great deals today!

Image Name Qty. In Stock Price

25 Round Box - 20 Gauge 2.75 Inch 7/8 Ounce Number 8 Shot Winchester USA Game and Target Ammo - USA208T

SKU: USA208T - Box
 24 $11.95 Each 20+ @$9.95 ($0.48 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 1165 FPS 1 Ounce 7.5 Shot Winchester AA Heavy Target Load Ammo - AAH207

SKU: AAH207 - Case
 15+ $129.50 Each 2+ @$124.90 ($0.52 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 7/8 Ounce Number 8 Shot Winchester USA Game and Target Ammo - USA208T

SKU: USA208T - Case
 14 $109.50 Each 2+ @$99.50 ($0.44 Per Round)

25 Round Box - 20 Gauge 2.75 Inch 20 Pellet Number 3 Buckshot Ammo by Lambro

SKU: Lambro-20GA-Box
 69 $17.95 Each 10+ @$14.95 ($0.72 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 20 Pellet Number 3 Buckshot Ammo by Lambro

SKU: Lambro-20GA-Case
 15+ $149.50 Each 2+ @$139.50 ($0.60 Per Round)

25 Round Box - 20 Gauge 2.75 Inch 1 Ounce Number 8 Shot Winchester High Brass Ammo - X208

SKU: X208 - Box
 81 $19.95 Each 10+ @$18.95 ($0.80 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 1 Ounce Number 8 Shot Winchester High Brass Ammo - X208

SKU: X208 - Case
 5 $189.50 Each 1+ @$189.50 ($0.76 Per Round)

25 Round Box - 20 Gauge 12 Pellet Number 2 Buckshot Ammo by Sellier Bellot - SB Favorit - SB20BSA

SKU: SB20BSA - box
 150+ $21.95 Each 10+ @$16.95 ($0.88 Per Round)

250 Round Case - 20 Gauge 12 Pellet Number 2 Buckshot Ammo by Sellier Bellot - SB Favorit - SB20BSA

SKU: SB20BSA - case
 15+ $169.50 Each 1+ @$169.50 ($0.68 Per Round)

25 Round Box - 20 Gauge 2.75 Inch 7/8 Ounce Number 2 Shot Winchester Defender Close Range Ammo - S202PD25

SKU: S202PD25 - Box
 75+ $25.95 Each 10+ @$24.95 ($1.04 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 7/8 Ounce Number 2 Shot Winchester Defender Close Range Ammo - S202PD25

SKU: S202PD25 - Case
 12+ $249.50 Each FREE
SHIPPING 1+ @$249.50 ($1.00 Per Round)

5 Round Box - 20 Gauge 2.75 Inch Number 3 Buckshot 20 Pellet Winchester Ammunition - XB203

SKU: XB203 - Box
 90 $8.95 Each 50+ @$7.99 ($1.79 Per Round)

250 Round Case - 20 Gauge 2.75 Inch Number 3 Buckshot 20 Pellet Winchester Ammunition - XB203

SKU: XB203 - Case
 12+ $399.50 Each FREE
SHIPPING 1+ @$399.50 ($1.60 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 3BK 20 Pellet Remington Express Buckshot Ammo - SP 20-3BK or 20B3

SKU: 20B3 - Box
 134 $8.95 Each 50+ @$6.95 ($1.79 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 3BK 20 Pellet Remington Express Buckshot Ammo - 20B3

SKU: 20B3 - Case
 3 $347.50 Each FREE
SHIPPING 1+ @$347.50 ($1.39 Per Round)

5 Round Box - 20 Gauge 2.75 Inch Winchester Rifled Slug 3/4 Oz 1600 fps Ammo - X20RSM5

SKU: X20RSMS
 150+ $6.95 Each 50+ @$5.99 ($1.39 Per Round)

250 Round Case - 20 Gauge 2.75 Inch Winchester Rifled Slug 3/4 Oz 1600 FPS Ammo - X20RSM5

SKU: X20RSM5 - Case
 15+ $299.50 Each FREE
SHIPPING 1+ @$299.50 ($1.20 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 3/4 Ounce Federal Rifled TruBall Slug HP Ammo - PB203RS

SKU: PB203RS - Box
 76 $7.95 Each 50+ @$5.95 ($1.59 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch 3/4 Ounce Federal Rifled TruBall Slug HP Ammo - PB203RS

SKU: PB203RS - Brick
 15+ $69.50 Each 5+ @$59.50 ($1.39 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 3/4 Ounce Federal Rifled TruBall Slug HP Ammo - PB203RS

SKU: PB203RS - Case
 4 $297.50 Each FREE
SHIPPING 1+ @$297.50 ($1.19 Per Round)

25 Round Box - 20 Gauge - 3/4 Oz Slug - 2.75 inch - 1350 FPS - Stars and Stripes Brand - CSLUG21

SKU: CSLUG21
 120+ $25.95 Each 10+ @$24.95 ($1.04 Per Round)

250 Round Case - 20 Gauge - 3/4 Oz Slug - 2.75 inch - 1350 FPS - Stars and Stripes Brand - CSLUG21

SKU: CSLUG21 - case
 12+ $249.50 Each FREE
SHIPPING 1+ @$249.50 ($1.00 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 250 Grain SST Slug For Rifled Barrel Hornady Ammo - 86232

SKU: 86232 - Box
 150+ $13.95 Each 20+ @$12.95 ($2.79 Per Round)

5 Round Box - 20 Gauge 2.75 In Slug 250 Grain FTX Hornady Custom Lite Reduced Recoil For Rifled Barrels - 86233

SKU: 86233 - Box
 186 $14.95 Each ($2.99 Per Round)

100 Round Case - 20 Gauge 2.75 In Slug 250 Grain FTX Hornady Custom Lite Reduced Recoil For Rifled Barrels - 86233

SKU: 86233 - Case
 9 $279.00 Each FREE
SHIPPING ($2.79 Per Round)

5 Round Box - 20 Gauge 2.75 In 3/4 OZ 1600 FPS 50 Cal Sabot Slug Winchester Copper Impact Ammo - X20CLF

SKU: X20CLF - Box
 98 $14.95 Each 20+ @$13.95 ($2.99 Per Round)

100 Round Case - 20 Gauge 2.75 In 3/4 OZ 1600 FPS 50 Cal Sabot Slug Winchester Copper Impact Ammo - X20CLF

SKU: X20CLF - Case
 5 $279.00 Each FREE
SHIPPING ($2.79 Per Round)

5 Round Box - 20 Gauge 2.75 Inch Number 3 Buck 1200 FPS Federal Maximum Buckshot Ammo - F2033B

SKU: F2033B - Box
 88 $8.95 Each 50+ @$6.99 ($1.79 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch Number 3 Buck 1200 FPS Federal Maximum Buckshot Ammo - F2033B

SKU: F2033B - Brick
 17 $79.50 Each 5+ @$69.90 ($1.59 Per Round)

250 Round Case - 20 Gauge 2.75 Inch Number 3 Buck 1200 FPS Federal Maximum Buckshot Ammo - F2033B

SKU: F2033B - Case
 9 $349.50 Each FREE
SHIPPING 1+ @$349.50 ($1.40 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 3/4 Ounce Federal Power Shok Rifled Slug Ammo - F203RS

SKU: F203RS - Box
 16 $6.95 Each 10+ @$5.95 ($1.39 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch 3/4 Ounce Federal Power Shok Rifled Slug Ammo - F203RS

SKU: F203RS - Brick
 1 $59.50 Each 1+ @$59.50 ($1.19 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 7/8 Ounce Federal Sabot Slug Ammo For Rifled Barrels - F203SS2

SKU: F203SS2 - Box
 58 $10.95 Each 10+ @$9.95 ($2.19 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch 7/8 Ounce Federal Sabot Slug Ammo For Rifled Barrels - F203SS2

SKU: F203SS2 - Brick
 15+ $99.50 Each 1+ @$99.50 ($1.99 Per Round)

25 Round Box - 20 Gauge 2.75 Inch 7/8 Ounce Number 8 Shot Winchester USA Game and Target Ammo - USA208T

SKU: USA208T - Box
24 In Stock
$11.95 Each 20+ @$9.95 ($0.48 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 1165 FPS 1 Ounce 7.5 Shot Winchester AA Heavy Target Load Ammo - AAH207

SKU: AAH207 - Case
15+ In Stock
$129.50 Each 2+ @$124.90 ($0.52 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 7/8 Ounce Number 8 Shot Winchester USA Game and Target Ammo - USA208T

SKU: USA208T - Case
14 In Stock
$109.50 Each 2+ @$99.50 ($0.44 Per Round)

25 Round Box - 20 Gauge 2.75 Inch 20 Pellet Number 3 Buckshot Ammo by Lambro

SKU: Lambro-20GA-Box
69 In Stock
$17.95 Each 10+ @$14.95 ($0.72 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 20 Pellet Number 3 Buckshot Ammo by Lambro

SKU: Lambro-20GA-Case
15+ In Stock
$149.50 Each 2+ @$139.50 ($0.60 Per Round)

25 Round Box - 20 Gauge 2.75 Inch 1 Ounce Number 8 Shot Winchester High Brass Ammo - X208

SKU: X208 - Box
81 In Stock
$19.95 Each 10+ @$18.95 ($0.80 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 1 Ounce Number 8 Shot Winchester High Brass Ammo - X208

SKU: X208 - Case
5 In Stock
$189.50 Each 1+ @$189.50 ($0.76 Per Round)

25 Round Box - 20 Gauge 12 Pellet Number 2 Buckshot Ammo by Sellier Bellot - SB Favorit - SB20BSA

SKU: SB20BSA - box
150+ In Stock
$21.95 Each 10+ @$16.95 ($0.88 Per Round)

250 Round Case - 20 Gauge 12 Pellet Number 2 Buckshot Ammo by Sellier Bellot - SB Favorit - SB20BSA

SKU: SB20BSA - case
15+ In Stock
$169.50 Each 1+ @$169.50 ($0.68 Per Round)

25 Round Box - 20 Gauge 2.75 Inch 7/8 Ounce Number 2 Shot Winchester Defender Close Range Ammo - S202PD25

SKU: S202PD25 - Box
75+ In Stock
$25.95 Each 10+ @$24.95 ($1.04 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 7/8 Ounce Number 2 Shot Winchester Defender Close Range Ammo - S202PD25

SKU: S202PD25 - Case
12+ In Stock
$249.50 Each
FREE SHIPPING
1+ @$249.50 ($1.00 Per Round)

5 Round Box - 20 Gauge 2.75 Inch Number 3 Buckshot 20 Pellet Winchester Ammunition - XB203

SKU: XB203 - Box
90 In Stock
$8.95 Each 50+ @$7.99 ($1.79 Per Round)

250 Round Case - 20 Gauge 2.75 Inch Number 3 Buckshot 20 Pellet Winchester Ammunition - XB203

SKU: XB203 - Case
12+ In Stock
$399.50 Each
FREE SHIPPING
1+ @$399.50 ($1.60 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 3BK 20 Pellet Remington Express Buckshot Ammo - SP 20-3BK or 20B3

SKU: 20B3 - Box
134 In Stock
$8.95 Each 50+ @$6.95 ($1.79 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 3BK 20 Pellet Remington Express Buckshot Ammo - 20B3

SKU: 20B3 - Case
3 In Stock
$347.50 Each
FREE SHIPPING
1+ @$347.50 ($1.39 Per Round)

5 Round Box - 20 Gauge 2.75 Inch Winchester Rifled Slug 3/4 Oz 1600 fps Ammo - X20RSM5

SKU: X20RSMS
150+ In Stock
$6.95 Each 50+ @$5.99 ($1.39 Per Round)

250 Round Case - 20 Gauge 2.75 Inch Winchester Rifled Slug 3/4 Oz 1600 FPS Ammo - X20RSM5

SKU: X20RSM5 - Case
15+ In Stock
$299.50 Each
FREE SHIPPING
1+ @$299.50 ($1.20 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 3/4 Ounce Federal Rifled TruBall Slug HP Ammo - PB203RS

SKU: PB203RS - Box
76 In Stock
$7.95 Each 50+ @$5.95 ($1.59 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch 3/4 Ounce Federal Rifled TruBall Slug HP Ammo - PB203RS

SKU: PB203RS - Brick
15+ In Stock
$69.50 Each 5+ @$59.50 ($1.39 Per Round)

250 Round Case - 20 Gauge 2.75 Inch 3/4 Ounce Federal Rifled TruBall Slug HP Ammo - PB203RS

SKU: PB203RS - Case
4 In Stock
$297.50 Each
FREE SHIPPING
1+ @$297.50 ($1.19 Per Round)

25 Round Box - 20 Gauge - 3/4 Oz Slug - 2.75 inch - 1350 FPS - Stars and Stripes Brand - CSLUG21

SKU: CSLUG21
120+ In Stock
$25.95 Each 10+ @$24.95 ($1.04 Per Round)

250 Round Case - 20 Gauge - 3/4 Oz Slug - 2.75 inch - 1350 FPS - Stars and Stripes Brand - CSLUG21

SKU: CSLUG21 - case
12+ In Stock
$249.50 Each
FREE SHIPPING
1+ @$249.50 ($1.00 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 250 Grain SST Slug For Rifled Barrel Hornady Ammo - 86232

SKU: 86232 - Box
150+ In Stock
$13.95 Each 20+ @$12.95 ($2.79 Per Round)

5 Round Box - 20 Gauge 2.75 In Slug 250 Grain FTX Hornady Custom Lite Reduced Recoil For Rifled Barrels - 86233

SKU: 86233 - Box
186 In Stock
$14.95 Each ($2.99 Per Round)

100 Round Case - 20 Gauge 2.75 In Slug 250 Grain FTX Hornady Custom Lite Reduced Recoil For Rifled Barrels - 86233

SKU: 86233 - Case
9 In Stock
$279.00 Each
FREE SHIPPING
($2.79 Per Round)

5 Round Box - 20 Gauge 2.75 In 3/4 OZ 1600 FPS 50 Cal Sabot Slug Winchester Copper Impact Ammo - X20CLF

SKU: X20CLF - Box
98 In Stock
$14.95 Each 20+ @$13.95 ($2.99 Per Round)

100 Round Case - 20 Gauge 2.75 In 3/4 OZ 1600 FPS 50 Cal Sabot Slug Winchester Copper Impact Ammo - X20CLF

SKU: X20CLF - Case
5 In Stock
$279.00 Each
FREE SHIPPING
($2.79 Per Round)

5 Round Box - 20 Gauge 2.75 Inch Number 3 Buck 1200 FPS Federal Maximum Buckshot Ammo - F2033B

SKU: F2033B - Box
88 In Stock
$8.95 Each 50+ @$6.99 ($1.79 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch Number 3 Buck 1200 FPS Federal Maximum Buckshot Ammo - F2033B

SKU: F2033B - Brick
17 In Stock
$79.50 Each 5+ @$69.90 ($1.59 Per Round)

250 Round Case - 20 Gauge 2.75 Inch Number 3 Buck 1200 FPS Federal Maximum Buckshot Ammo - F2033B

SKU: F2033B - Case
9 In Stock
$349.50 Each
FREE SHIPPING
1+ @$349.50 ($1.40 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 3/4 Ounce Federal Power Shok Rifled Slug Ammo - F203RS

SKU: F203RS - Box
16 In Stock
$6.95 Each 10+ @$5.95 ($1.39 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch 3/4 Ounce Federal Power Shok Rifled Slug Ammo - F203RS

SKU: F203RS - Brick
1 In Stock
$59.50 Each 1+ @$59.50 ($1.19 Per Round)

5 Round Box - 20 Gauge 2.75 Inch 7/8 Ounce Federal Sabot Slug Ammo For Rifled Barrels - F203SS2

SKU: F203SS2 - Box
58 In Stock
$10.95 Each 10+ @$9.95 ($2.19 Per Round)

50 Round Brick - 20 Gauge 2.75 Inch 7/8 Ounce Federal Sabot Slug Ammo For Rifled Barrels - F203SS2

SKU: F203SS2 - Brick
15+ In Stock
$99.50 Each 1+ @$99.50 ($1.99 Per Round)