The "Products" lists are not inclusive, just what caught my eye.

Go to gun-deals.com/ammo.php for an up-to-date list of ammo prices from a variety of distributors, sorted by caliber, and including shipping to your zip code. Their site makes this page obsolete (well, not quite, this page is easy to save on your computer).

Some supplier's have an asterisk link ("*") next to the main link. This goes directly to the rifle ammunition page.
The sharp-sign links ("#") bring that company to the top of the page.

Last update: 6 June, 2018 -->

Company	Contact	Products
AIM Surplus #	aim 3801 Lefferson Rd. Middletown, OH 45044 Ph: 888-748-5252 Fax: 513-424-9970 info@aimsurplus.com	"Quality Surplus Firearms and Ammunition at a Super low price." Prvi Partizan 75 grain boattail match .223 Prvi Partizan 145 grain .308 7.62x39 Golden Tiger 124 grain Aguila .22lr & 12 guage mini slugs, .30 carbine, .303 British, .50 cal, 7.5 Swiss, 7.62x54R, 8mm
Alamo Ammo #	Alamo Ammo 2132 NW Military San Antonio, TX Ph: 210-293-1126	"Need Bullets? We'll Shoot'em right over!" .223 55gr Federal FMJ - $360/1000 .308 147gr FMJ-BT $305/500 7.62x39 124gr Wolf FMJ - $255/1000 (prices as of 2/26/2010)
Ammo Junction #	Ammo Junction, LLC Contact form	Variety of handgun, rifle, rimfire, and shotgun ammo. Commercial per-box prices. No bulk.
Ammo.com #	Ammo.com 1901 Manhattan Blvd. Building D PMB #300 Harvey, LA 70058 Ph: 800-604-1094 Email: customercare@ammo.com	"We believe every ammo purchase supports these ideologies, which is why we donate 1% of Ammo.com purchases to a pro-freedom organization of your choice. The organizations we support are defenders of American Exceptionalism -- whether it's in our courts, through our legislative bodies, on the front lines of our military, or in the ballot box." Popular in-stock calibers include 9mm, 45 ACP, 40 cal, 380 Auto, 38 Special, 22LR, 223 Rem, 5.56x45, 7.62x39, 12ga, and 20ga ammo.
AmmoForSale.com #	AmmoForSale.com P.O. Box 85073 Richmond, VA 23285-5073 Ph: 800-581-0293 Fax: 800-760-8511 CustomerService@AmmoForSale.com	"Your #1 source for all ammo & reloading supply needs." Fiocchi 380 ACP - $345/1000 Rio Royal 12 ga - $115/250 Sellier & Bellot 9mm - $200/1000 Magtech 40 S&W - $260/1000 Tula 45 ACP - $150/500 Sellier & Bellot 5.56x45 - $299/1000 (prices as of 10/28/2010)
AmmoMan #	Ammoman Order on-line. Phones just to verify orders. Ph: 856-753-2500 (Mo/Tu/Th/Fr 7am-2pm EST) Fax: 856-753-7735 eric@ammoman.com	Ammo for just about every rifle and pistol caliber. Some one-of guns, bayonets, books, targets, UZI/AR/.45 Mags Free shipping on all orders .223 55gr Wolf steelcase .308 Federal FMJ .308 Wolf Gold Line .308 Wolf FMJ bimetal jacket 7.62x39 Wolf 7.62x39 Federal FMJ
Ammunition To Go #	Ammunition To Go 6360 FM 50 Brenham, TX 77833 Ph. 979-277-9676 Fax: 979-277-9959 John@ammunitiontogo.com	Huge variety of regular and specialty ammo, organized for easy browsing. Grenades, flares, ammo cans, desiccant, bayonets. .223 62gr Wolf FMJ/1000 .308 145gr Barnaul FMJ 7.62x39 Brown Bear FMJ 7.62x39 Wolf FMJ
Ammunitionstore.com * #	Ammunitionstore.com 4101 Shuffel Dr NW Suite 200 North Canton, OH 44720 Ph: 800-432-0255 Ph: 330-498-0864 Fax: 330-498-0932 sales@ammunitionstore.com	Ammo, mags, reloading, parts kits, scopes, firearms, Class 3/NFA, accessories. Most of the popular rifle and pistol calibers. .223 Wolf steelcase 55gr .308 Wolf Gold 7.62x39 Wolf
Bishop Ammunition #	Bishop Ammunition Manufacturing 4241 Oslo Court Antelope CA 95843 Ph: 916-910-9856 Fax: 916-339-7294 info@bishopammunition.com	Remanufactured 45 Colt, 45 ACP, 40 S&W, 41 Magnum, 44 Special, 38 Special, 357 magnum handgun, and .223 Remington rifle ammunition. .223 55gr FMJ - $18/50 .45 ACP 230gr Total Metal Jacket - $359/1000 (prices as of 11/23/2011)
Bulk Ammo #	BulkAmmo.com PO Box 66738 #45605 Saint Louis, MO 63166-6738 Ph: 800-720-6035 Fax: 800-406-1657 customerservice@bulkammo.com	"We pride ourselves on offering only the best deals to the most serious shooters for bulk handgun ammo, bulk rifle ammo, bulk shotgun ammo, and bulk rimfire ammo." .380 Auto (Aguila)- $295/1,000 .40 S&W (Winchester)- $145/500 .45 ACP (Aguila)- $395/1,000 9mm (Magtech)- $225/1,000 .22 LR (Federal)- $205/5,000 .223 Ammo (Tula)- $250/1,000 5.56x45 (Federal)- $300/900 7.62x39mm (Golden Tiger)- $225/1,000 .308 Win (Tula)- $155/500 (Prices as of 9/1/2010)
Cabela's #	Cabela's Many Stores Cabela's Customer Returns 400 East Avenue A Oshkosh, NE 69190 Email form Ph: 800-237-4444	A huge variety of sporting goods. Link goes to their rifle ammo page. .223 55 grain FMJ (Wolf steelcase) - $290/1000 .308 150 grain FMJ (Wolf steelcase) - $430/1000 7.62/39 (Herter's steelcase) - $150/640 (prices as of 12/22/2010)
Cheap Ammo #	Cheap Ammo 1000 Highland Colony Parkway Suite 5203, PMB# 2757 Ridgeland, MS 39157 Ph: 763-703-1611 Fax: 763-780-9903 support@cheapammo.com	Nearly 100 calibers in-stock with bulk options ready to ship fast. Cheap 9mm Ammo Cheap 223 Ammo
Cheaper Than Dirt #	Cheaper Than Dirt! Internet Customer Service 2524 NE Loop 820 Fort Worth, TX 76106 Ph: 800-421-8047	Huge selection of sporting goods, firearms, ammo, and accessories. .223 Wolf 55gr .308 Barnaul Nickel-plated steelcase 7.62x39 Silver Bear 7.62x39 Wolf
Clark Armory #	Clark Armory 6802 Paragon Place Suite 410 Richmond, VA 23230 info@clarkarmory.com Ph: 804-592-0862 Contact Form	Non-toxic shooting supply. Many lead-free and frangible ammunition options. 9MM Ammo .308 Winchester Lead-Free rounds
Dan's Sporting Goods * #	Dan's Sporting Goods #84 Route 380 Apollo, PA 15613 Ph: 724-727-2648 Fax: 724-727-2649 info@dansammo.com	Ammo, firearms, odds & ends .223 Fiocchi 55 grain 7.62x39 Barnaul steelcase SP
Georgia Arms * #	Georgia Arms, Inc. P.O. Box 238 Villa Rica, Georgia 30180 Ph: 800-624-6861 Fax: 770-459-1904 gaarms@bellsouth.net	They manufacture ammo, mostly new commercial, but some in bulk. .223 FMJ 55gr .308 FMJ 150gr
J&G Sales * #	J&G Sales, Ltd. PO Box 10400, Dept. N 440 Miller Valley Road Prescott, AZ 86304 928-445-9650 928-445-9658 jgsales@qwest.net	A huge variety of firearms, ammunition, and accessories. J&G is one of the largest advertisers in Shotgun News .223 55gr Wolf steelcase 7.62x39 Wolf steelcase .308 Silver Bear SP .30 carbine, .303 British, 7.62x54R, 8mm, others
King's Ammo #	King's Ammo Texas, I think. King@kingsammo.com	A wide variety of hand-loaded ammunition at very reasonable prices. For example, .308 Winchester, with 150 grain Hornady SP bullets, sells for $530/1000 with new brass, or $361/1000 for reloads. It costs me about $0.25 per round to reload .308 with the cheapest FMJ bullets I can find, so this is very good.
LuckyGunner.com #	LuckyGunner.com P.O. Box 32747 Knoxville, Tennessee 37930 Ph: 800-317-9506 Fax: 800-317-9506 sales@luckygunner.com Twitter: LuckyGunner	Bulk-Ammo and hot deals for every shooter. Only items in stock and ready for same-day shipment are displayed. 22 LR (Federal) - $200/5,000 223 (Steel Case) - $225/1,000 40 S&W (Brass Cased) - $250/1,000 45 ACP (Brass Cased) - $365/1,000 5.56x45 (Federal XM193 on Stripper Clips) - $300/900 9mm (Brass Cased) - $195/1,000 Ammo Cans (Like New 50 Cal.) - $7.00 each (Prices as of 8/6/2010)
Outdoor Marksman #	Outdoor Marksman 2259 Judson Street Southeast Salem, OR 97302 Ph: 503-399-5463 contact page	A huge variety of rifle, pistol, and shotgun ammunition, accessories, optics, knives & tools. "Outdoor Marksman is proud to be the number one distributer for Miwall Corporation." .223 55 grain Wolf steelcase 7.62x39 Wolf steelcase .308 Wolf Steelcase
Southern Ammo * #	Southern Ammunition Company, Inc. 4232 Meadow Street Loris, South Carolina 29569 Ph: 843-756-3262 Fax: 843-756-3583	Commercial, military, and restricted ammunition and components. (No rifle ammunition in stock as of 4/8/2007)
Sportsman's Guide * #	Sportsman's Guide 560 Armour Ave. So. St. Paul, MN 55075 Ph: 800-882-2962 custserv@sportsmansguide.com	Huge variety of sporting goods Commercial ammo from many manufacturers. .223 Wolf steelcase .308 Wolf .308 Remington UMC 7.62x39 Wolf
TheAmmoBroker.com #	TheAmmoBroker.com Ph: 877-603-7228 Contact form	Small selection of centerfire pistol, rimfire, rifle, and shotgun ammunition .223 Brown Bear - $6.15/20 .308 Brown Bear - $9.25/20 (prices as of 9/12/2010)
TTI Armory #	TTI Armory 14884 S. Heritagecrest Way, Suite A Salt Lake City, UT 84065 Ph: 801-545-0174 Fax: 801-545-0176 info@ttiarmory.com	Specialized Munitions .50 BMG, .308, .223, .45, .40 S&W, & 9mm cartridges. Tactical, match, frangible, sub-sonic, armor piercing Not cheap, but appears to be very high quality.
Wideners #	Wideners 3101 W. Market Street, #137 Johnson City, TN 37604 Ph: 800-615-3006 Fax: 423-815-1348 wideners@wideners.com	Ammunition, reloading supplies, shooting accessories. .223 Tula - $215/1000 .308 Tula - $175/500 7.62x39 Wolf- $215/1000 (prices as of 6/6/2018)
Ventura Munitions #	Ventura Munitions 8414 W. Farm Road, Suite 180-421 Las Vegas, NV 89131 Ph: 855-438-8626 Fax: 855-862-6329 estephan@venturamunitions.com	A wide range of ammunition, scopes, lasers & lights, optics, and safes. "Standard and Specialty Ammunition for the Discerning User."