Hollow Point vs Clay Lake

Published on March 15, 2026
Duration: 0:30

This guide details a DIY method for creating hollow point bullets from FMJ projectiles using a common power drill. The video demonstrates the process and compares the terminal ballistics of a modified FMJ against a standard FMJ in a mud lake test. The results showed a significantly larger cavity from the DIY hollow point, surprising the presenter. The video suggests further accuracy testing. Instruction is provided by an experienced individual with clear expertise in ammunition types and reloading.

Quick Summary

A DIY hollow point bullet, created by drilling an FMJ projectile with a Ryobi drill, produced a cavity twice the size of a standard FMJ's impact hole in a mud lake test. This surprising result suggests potential for enhanced terminal ballistics compared to unmodified FMJ rounds.

Chapters

  1. 00:00DIY Hollow Points?
  2. 00:07Testing Setup & Ammunition
  3. 00:15FMJ Test Shot Results
  4. 00:19Drilled Hollow Point Test Results
  5. 00:25Surprising Results & Future Tests

Frequently Asked Questions

How can you make hollow point bullets at home?

You can create DIY hollow points by modifying Full Metal Jacket (FMJ) bullets. This involves using a power drill, such as a Ryobi ONE+ HP, to carefully drill out the nose of the FMJ, creating a hollow cavity similar to a factory hollow point projectile.

What are the results of testing DIY hollow points against FMJ bullets?

In a terminal ballistics test using a mud lake, a DIY hollow point created from an FMJ bullet produced an impact cavity approximately twice the size of that made by a standard FMJ round. This suggests enhanced expansion capabilities.

What tools are needed for DIY bullet modification?

The primary tool demonstrated for modifying FMJ bullets into DIY hollow points is a power drill, specifically a Ryobi ONE+ HP model. Standard reloading equipment and appropriate safety gear are also implied.

Is modifying bullets at home safe or legal?

While the video demonstrates a DIY modification, legality can vary by jurisdiction and specific bullet types. Safety is paramount; always follow safe firearm handling procedures and wear eye protection during any ammunition modification or testing. Consult local laws regarding ammunition modification.

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