.300 Win Mag MK248 Mod 1 Sig Sauer 220gr SMK 20 Rds Loose (NO TAX OUTSIDE OH) FREE SHIPPING ON $199+

ESTATE FIND

Appears to be MK248 Mod 1 based on projectile weight and headstamp.

.300 Win Mag 220gr MK 248 Mod 1 – Military Grade Long-Range Ammunition

Product Description:

Originally developed for the U.S. military’s M2010 Enhanced Sniper Rifle program, the MK 248 Mod 1 is a premier long-range sniper cartridge, engineered for precision, stability, and terminal performance in extreme environments. This configuration features a 220-grain Sierra MatchKing® HPBT (Hollow Point Boat Tail) projectile, selected for its ballistic consistency and match-grade accuracy.

Loaded to military specifications, MK 248 Mod 1 utilizes a temperature-stable propellant and low-flash powder to deliver consistent velocities and minimal visual signature—ideal for tactical precision shooting.

Specifications:

• Caliber: .300 Winchester Magnum

• Bullet Weight: 220 Grains

• Bullet Type: Sierra MatchKing® HPBT (Open Tip Match)

• Intended Use: Long-range precision / tactical applications

Important Notes:

• This ammunition was originally designed for military sniper systems and may exceed SAAMI pressure specifications.

• Use only in rifles specifically chambered and rated for high-pressure .300 Win Mag loads.

• Buyer assumes all responsibility for safe use and compatibility.

• PLEASE NOTE: The overall length of this cartridge is 3.48″” instead of the traditional 3.340″, so it may not feed in all magazines. Measure your magazines to ensure proper fitment.

We have more of this available, we have not sorted through everything yet. Unsure exactly how much we have on hand.