50 BMG – 660/690 gr 4-1 – Linked – Ammo Can (XM33/XM17) – Federal – 100 Rounds

(47 customer reviews)

  • Quantity – 100 Rounds (linked in 50 Cal Ammo Can M2A1)
  • 80 FMJ Rounds; 20 Tracer Rounds
  • Manufacturer – Federal
  • Bullet – 660 Grain FMJ (Full Metal Jacket) and 690 Grain Tracer
  • Casing – New Boxer-Primed Brass

Out of stock

SKU: 50BMG690can4n1xm33m17Fed-100 Categories: ,

Sometimes called “4-n-1”, “4n1” or “4:1”, this linked 50 Caliber ammo features a 4 to 1 ratio of ball M33 (660gr FMJ) to tracer M17 (690gr). So if you’re doing low-light shooting, this is a round that adds a little something more!

Since 1922, Federal Ammunition has been providing hunters, shooters, and the U.S. Military with high-quality, cutting-edge shotshells, centerfire, and rimfire products. Now, they offer .50 BMG linked ammunition to those civilian shooters lucky enough to have access to one of these beasts.

This ammunition is produced at the famed Lake City Arsenal, the same plant that manufactures NATO-specification ammunition for our military. Each round features a 690 grain Full Metal Jacket round, non-corrosive Boxer style primer, and a first-run high-quality brass case. Every 5th round is a 690 grain Full Metal Jacket Tracer with the same Boxer primer and brass casing that the military depends on daily.

This linked ammunition allows the shooter to have a reliable, proven means of running their .50 BMG like it was meant to run – fast and hard! Because it is made to NATO specifications, it is sure to feed, fire and eject without malfunction or danger of misfeeds, stovepipes, or jams.

This ammunition is sold in bulk 100 round packages and includes the standard military-style ammo can. These are overruns from mil orders, not reloads! So you’re getting the same stuff the military does!


Ammo Caliber

50 BMG

Bullet Type


Bullet Weight

660 Grain







Manufacturer SKU






47 reviews for 50 BMG – 660/690 gr 4-1 – Linked – Ammo Can (XM33/XM17) – Federal – 100 Rounds

  1. RC (verified owner)

    The bulk 50 BMG I received is of high grade and looks to be very clean. Came exactly as described, in a nice ammo can. Thanks BulkMunitions, I will be doing more business with you.

  2. RC (verified owner)

    My experience with BulkMunitions was fantastic. Prompt, professional service and a quality product at a great price. What more can you ask for? I will be doing more business with them in the future. Thanks BM!

  3. Richard Price (verified owner)

    Great product, timely shipping!
    Thanks Gents—> SEMPER Fi
    Sic semper tyrannis

  4. Bill Rapier (verified owner)

    Shipping was prompt. I would do business with them again.

  5. John (verified owner)

    Prompt and correct shipping. I’ll order from them again.

  6. SP (verified owner)

    Nice ammo exactly as described. Ordered 10 boxes and UPS lost one so Bulk Munitions shipped another one right way.

  7. robert waldrop (verified owner)

    awesome purchace . super fast shipping and it came exactly as it was described i was super excited to see it on my doorstep..

  8. Shane (verified owner)

    This 50 BMG was the best surplus ammo that I’ve ever purchased and definitely the best price. Shipping was super fast!!! Thanks Guys!!

  9. MIKE V. (verified owner)

    good ammo, fast service and shipping

  10. Craig Worline (verified owner)

    Great ammo runs great was a good price

  11. Oland (verified owner)

    Excellent price, great packaging, quickly shipped. This ammo is clean and runs great in my Barrett 82A1.

  12. DJ (verified owner)

    Great service. Arrived within two days.

  13. Daniel Allison (verified owner)

    Great Price, Packing, and fast shipping. Very Satisfied!!

  14. Loren Duvekot (verified owner)

    Nice clean ammo, excellent value and great service.

  15. Dan (verified owner)

    Great price and quick shipping!

  16. Hendrik (verified owner)

    Great price arrived quicker than I expected!

  17. Thimas

    Came as advertised, timely delivery, would buy from them again.

  18. Joe (verified owner)

    Excellent ammo at a great price. Very quick shipping, secure packaging, and timely updates on my orders. Great job.

  19. WILL CLARK (verified owner)

    Ammo came exactly as described. Will be doing business again.

  20. Larry Faircloth (verified owner)


  21. Kevin (verified owner)

    Great ammo fast shipping

  22. Lee Farah (verified owner)

    Excellent product, fast shipping and GREAT Customer service. what else do we want

  23. Branko (verified owner)

    Excellent ammo, price is reasonable considering present climate, will be reloading this brass

  24. Ray (verified owner)

    Best experience I’ve had in years. By all means give these folks a try, I’m sure you’ll keep coming back.

  25. Rob (verified owner)

    Great ammo super fast shipping and best price you can find

  26. Sean (verified owner)

    Great ammo and extremely fast shipping! Wonderful company to do business with!

  27. MARK (verified owner)

    Smooth transaction, timely shipping and high quality product

  28. Derek K. (verified owner)

    Ammo was perfect and shipping was fast! The price was awesome too and i will be getting more. Thanks Bulk Munitions!

  29. Shane (verified owner)

    Got my case of 100 rounds a day earlier. Gonna be ordering more soon.

  30. Nick (verified owner)

    100% as described. Great

  31. JC Jacquin (verified owner)

    Received on time and as described.

  32. R2mi 50 (verified owner)

    Received as promised. Ready to purchase more

  33. Jason Theobald (verified owner)

    Good product good service

  34. Gary Bruce (verified owner)

    Can # 2 received & like the 4+1. Great timing since price as increased $20 per can since getting the first two just a few weeks ago.

  35. W D Nesbit (verified owner)

    Fast shipping and great price. Highly recommended and cannot wait to order more.

  36. Mark Hargroves (verified owner)

    Very nice clean ammo as advertised. Looking forward to ordering again! Thank You very much everyone at bulkmunitions.

  37. YNHIC (verified owner)

    Absolutely wonderful experience, Fast shipping. Very happy with product. Will definitely use again.

  38. Aaron (verified owner)

    Great deal and shipped super fast. Will be back for more.

  39. Martin (verified owner)

    Good ammo good price.

  40. Frank (verified owner)

    Excellent service. Quick to ship and was as perfect as you would expect

  41. Stevie Ray

    Great deal. Fast shipping. Will order again.

  42. Chadd Maze

    Great company to work with and some of the fastest shipping ever! Thanks, I will be a return customer!

  43. steve (verified owner)

    👍👍👍👍👍my only complaint was I didnt have the cash to buy more.

  44. Gary (verified owner)

    Received my can this afternoon. So impressed I ordered another one tonight.

  45. Michael (verified owner)

    Great service and Timely shipping

  46. Jef (verified owner)

    Excellent Ammo and fast shipping. Will order again

  47. G50B (verified owner)

    A++ Ammo… will refer and a very satisfied customer.

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