Liberty Overwatch 5.56mm 77gr OTM Rifle Ammunition, 20-Round Box

Liberty Overwatch 5.56mm 77gr OTM rifle ammunition (brand part no. LA-OW5.56-074) pairs a match-grade open-tip bullet with serious velocity for shooters who demand precision at distance. Liberty Ammunition builds the Overwatch line for shooters who need dependable accuracy from a duty-capable rifle round, whether at the range, in competition, or on a designated marksman rifle. The 77-grain open tip match bullet leaves the muzzle at 2800 fps and carries more than 1340 foot-pounds of energy downrange, backing sub-MOA accuracy out to 300 meters. In 5.56mm rifle ammunition built for precision work, this load is engineered to shrink groups instead of open them.

Key Specifications

• This round is chambered in 5.56mm, the NATO-spec cartridge that cycles reliably through mil-spec and semi-custom AR platforms alike.
• The bullet is a 77-grain Open Tip Match (OTM) design, built for competition-grade accuracy and consistency rather than expansion.
• Muzzle velocity reaches 2800 fps, giving the 77-grain bullet a flatter trajectory that simplifies holdovers at extended range.
• Kinetic energy exceeds 1340 foot-pounds, retaining significant striking power well past typical carbine engagement distances.
• Liberty rates this load at better than 1 MOA at 300 meters, tight enough for designated marksman and precision rifle work.
• Each box holds 20 rounds, enough to confirm zero and still evaluate the load’s accuracy at distance.

Frequently Asked Questions

Is the 77gr OTM bullet designed to expand? No, Open Tip Match bullets are built for accuracy and consistency rather than terminal expansion, making this a match and precision-shooting load rather than a hunting round.

What distance is this load accurate to? Liberty rates the Overwatch 77gr OTM at better than 1 MOA out to 300 meters, suitable for designated marksman and precision rifle applications.

Will this load cycle in a standard AR-15? Yes, 5.56mm ammunition cycles in any rifle chambered for 5.56 NATO or .223 Remington, though a faster twist rate helps stabilize the heavier 77-grain bullet.

Buy the Liberty Overwatch 5.56mm 77gr OTM

Precision rifle shooters need a load that removes ammunition as a variable, and Liberty built the Overwatch line to do exactly that. Whether you are confirming zero, working a match stage, or stretching a rifle’s legs at distance, this open-tip match load is engineered to keep shrinking your groups. Order from our Lubbock, Texas gun shop and it ships fast to your door.