Barnes Multi-Purpose green (MPG) Bullets .30 cal .308" 150 gr MPGFB 50/ct

The Barnes Multi-Purpose Green (MPG) 150-grain .308" rifle bullet combines lead-free construction with the toughness you need for precision reloading. Designed around military and law enforcement requirements, these open-tip rounds use a frangible powdered-metal copper-tin core bonded inside a guilding metal jacket—a design that keeps bullets intact through magazine feeding, chamber cycling, and firing, eliminating the jams and barrel plugging that plague traditional frangible ammunition. Whether you're loading for an AR-10, SR-25, M40, or M14 platform, MPG bullets deliver the accuracy and reliability competitive shooters, steel-target enthusiasts, and handloaders expect.

"Green" means lead-free, making these rounds compliant with range environments and jurisdictions where lead ammunition isn't permitted. The frangible core fragments decisively on impact, shedding energy quickly—a genuine advantage for shooters prioritizing safety downrange and backstop integrity. Unlike conventional solid-copper or monolithic designs, MPG bullets remain dimensionally stable even at the extreme velocities and rotational forces modern rifle barrels generate, so you won't sacrifice accuracy or reliability for environmental responsibility.

These 150-grain rounds are sized for rifles with 1:12" or faster rifling twist rates. The 50-count box gives you a practical quantity for load development, match prep, or range sessions. If you're building precision loads for mid-range or longer work and need bullets that shoot clean, feed reliably, and perform decisively, Barnes MPG ammunition offers a proven, purpose-built alternative to lead-core designs.

Key Features

• Lead-free, frangible copper-tin core in protective guilding metal jacket
• Remains intact through feeding and firing—eliminates jams and barrel plugging
• Open-tip design for explosive fragmentation on impact
• Exceptionally accurate for competition, steel targets, and precision work
• Engineered for high-velocity rifles with 1:12" or faster twist rates
• 50 bullets per box

Specifications

Frequently Asked Questions

Will these Barnes MPG bullets work in my AR-10 or M40?

Yes. The 150-grain .308" MPG bullets are specifically designed for AR-10, SR-25, M40 (Remington 700), and M14 rifles with 1:12" or faster rifling twist rates. Check your rifle's twist specification to confirm compatibility.

Are these bullets truly lead-free?

Yes. The "Green" designation is military shorthand for lead-free construction. The core is a frangible powdered-metal copper-tin composition, making them compliant with lead-restricted ranges and environments.

What makes MPG bullets different from standard frangible ammunition?

MPG bullets feature a protective guilding metal jacket around the frangible core, which keeps the bullet intact during handling, loading, and firing. Traditional frangible ammunition without a jacket is prone to crumbling or disintegrating prematurely, causing feed jams and barrel obstruction. MPG design eliminates those reliability issues while delivering fragmentation on impact.

What's the best use for these bullets?

Barnes markets MPG bullets for shooting steel targets, competition, plinking, and training. The frangible design is also effective for varmint hunting and home-defense scenarios where rapid energy transfer and minimal over-penetration are priorities.