Discerning shooters know that when it comes to ammunition—attention to detail, quality components, and careful craftsmanship make all the difference. Steinel Ammunition Co. (formerly XCaliber) is a premium ammunition manufacturer Dedicated to Every Round™. We painstakingly develop and meticulously test our ammunition to provide you with the confidence, performance, and dependability you need in any situation (target shooting, hunting, competition, and self-defense).
Below you will find a few of our best selling cartridges.
Steinel Ammunition Co. focuses on rare and large bore cartridges like 458 SOCOM, 450 Bushmaster, 45/70 Government, 7.75 x 48 Arisaka and others. This focus allows us to refine our processes and testing for exceptional performance and reliability. We back every order with a no-questions satisfaction guarantee—and you’ll be delighted with our fast shipping and responsive customer service.
What our customers say…
“Your 325 group a cloverleaf at 50 yards with my 8″ pistol… Will order some more.”
“That expansion and penetration is literally perfect.”
—Steven S., During gel test recovery regarding 325 FTX
“Your 300s are more accurate than I am past 75 yards.”
— John D., Mentor, OH
“Ran those 45s through my full-auto. Awesome. A little hot for my XDS, but I always shoot lighter target loads through that gun.” — Customer
“Your defensive rounds are hot…and accurate. Keep ’em that way.”
—Eastlake Gun Show Customer
“I was pleasantly surprised by how clean your coated lead shoots.”
— Summit County Gun Show Customer
“Excellent accuracy from a proper 10mm loading. I will definitely be ordering some more.”
“Finally got a chance to shoot those 10s, man. WOW- those things BARK.”
—Dave, ARGC Member