SUPERFORMANCE ammunition is loaded with proprietary propellants that increase the velocity ratings up to 200 feet per second compared to other popular brands. Because there is no increase in pressure, regardless of the caliber, there is no increase in felt recoil but there IS an increase in efficiency and high speed performance. From sub-zero arctic temperatures to almost unbearable desert heat, SUPERFORMANCE ammunition can withstand any hunting habitat.
Hard-hitting and deep-penetrating, the GMX bullet combines monolithic construction with pioneering ballistic design to meet the need for a premium, non-traditional bullet. The mono-metal design of the GMX bullet is crafted from a copper alloy. Harder than solid copper, the copper/zinc alloy has been proven to shoot cleaner, foul less, and deliver consistent, even pressure curves. The tough alloy material routinely retains 95% or more of its original weight and expands up to 1.5 times its original diameter. Featuring a long, sleek profile with cannelures, the design reduces the bullet���s overall bearing surface and drag, while achieving some of the highest ballistic coefficients from monolithic, non-traditional bullets. Initiating expansion upon impact, the hard polymer tip drives into the hollow cavity at the front of the bullet, creating a mushroom-style projectile as it travels through the animal. Fully California compatible and appropriate for use in other areas requiring the use of non-traditional bullets, GMX is ideal for any sized game, from antelope to moose. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.
Technical Information
- Caliber: 7x57mm Mauser (7mm Mauser)
- Bullet Weight: 139 Grains
- Bullet Style: GMX
- Case Type: Brass
Ballistics Information
- Muzzle Velocity: 2740 fps
- Muzzle Energy: 2317 ft. lbs.
Hornady 7x57mm (7mm Mauser) Ammunition Superformance H81556 139 Grain GMX 20 rounds
H81556,H81556BRICK,H81556CASE,H81556X
Hornady 7x57mm (7mm Mauser) Ammunition Superformance H81556 139 Grain GMX 20 rounds
Returns Policy
- We are unable to accept returns on ammunition. All ammunition sales are final.
- It is up to the customer to know all local laws and obey them. By purchasing ammunition or magazines you certify that you are 21 years of age.
Delivery Date and Manually Reviewed Orders
- We offer the estimated delivery date at checkout for UPS and Fedex shipping. This is an estimate based on the current warehouse workflow and the shipping carrier's transit time.
- If your order requires manual review the shipping date may be delayed. Orders that need to be manually verified are flagged by our system. Typically we flag orders for manual verification if the billing and shipping address do not match, we need an ID on file to ship the order, or if the order is from a first time customer for a large amount. We will contact you promptly to verify your order or request an ID. To expedite this process feel free to contact us in advance to verify the order or submit your ID. Please submit the ID using the tools on the site to upload your ID. This info is displayed below under your corresponding state. Once you have been verified you will be put on a white list for future orders. We thank you for your help.
Shipping Restrictions
Alaska | No ammunition |
---|---|
California |
Must be shipped to an FFL or Licensed Ammunition Vendor unless you are an exempt peace officer. IF you have an FFL03 we can ship ammunition to you once on file, but you must have an AVL issued by CA to transfer ammunition. Click here to view the FFL dealers we have on file and instructions for shipping to a CA FFL or AVL. Click here to upload your FFL or AVL information (LEO Credentials if applicable) No tracer ammunition No magazines over 10 rounds |
Connecticut |
No magazines over 10 rounds |
Colorado | No magazines over 15 rounds |
DC | No ammunition, no magazines over 10 rounds |
Hawaii | No Ammunition, no magazines over 10 rounds, no Starter Pistols |
Illinois | Must have an Illinois Firearms Owner Identification Card, no shipments to Chicago. Click here to upload your IL Firearms Owner ID Card |
Maryland | No magazines over 10 rounds |
Massachusetts | No Ammunition, no magazines over 10 rounds, no Starter Pistols |
New Jersey | No magazines over 10 rounds, must have a New Jersey Firearms Purchaser Identification Card to purchase ammunition Click here to upload your NJ Firearms Purchaser ID Card |
New York | No magazines over 10 rounds |
New York City | No magazines over 10 rounds, all ammunition must be shipped to an FFL Click here to upload an FFL |