10mm Ballistic Gel Block Testing the Maker 140gr PREX Bullets – All Copper, All Business

In this 10mm Auto test, we’re sending the Maker Bullets 140gr PREX—an all-copper, segmented hollow point—downrange in to see how it performs in 10% Clear Ballistics gel. Engineered for controlled fragmentation, the PREX is designed to open into multiple petals on impact, delivering serious terminal performance.

Does this high-tech bullet live up to its reputation? Can the segmented design truly balance penetration and expansion? Let’s find out as we push it through gel and see what kind of real-world results we get.

✅ Testing Platform: Glock 20
✅ Bullet: Maker 140gr PREX – All Copper, Segmented
✅ Media: 10% FBI-standard Clear Ballistics Gel Block

If you’re into reloading, self-defense ammo, or just love ballistics testing, this is one to watch.