Lee Precision 90924 Lead Hardness Test Kit 3 Piece Multi-Caliber 1 Bullet 0.68 lbs

The Lee Precision Multi-Caliber Lead Hardness Test Kit is a practical tool for reloaders who cast their own bullets and want to dial in the hardness of their lead alloys. Instead of guessing whether your cast bullets are too soft or too hard for your intended load, this kit lets you measure the actual Brinnell hardness number of your alloy through a straightforward 6-step process. Knowing your alloy's hardness removes the guesswork and helps you load with confidence, avoiding wasted components from alloys that won't perform as intended.

The kit includes a pocket microscope designed specifically for measuring hardness impressions, making it practical for the home casting bench. This isn't just a curiosity tool—understanding your lead hardness directly impacts how your bullets will perform under pressure, which matters whether you're working up loads for precision rifle, pistol, or shotgun applications. The kit comes with a conversion chart that correlates your hardness reading to the maximum safe operating pressure for that alloy, taking the mystery out of alloy selection and load development.

If you're serious about casting your own bullets, you've probably read about the importance of lead hardness in reloading manuals and forums. This kit puts actual data in your hands instead of relying on guesses about whether your scrap lead, linotype, or commercial alloy is suitable for your cartridge. It's a one-time investment that pays dividends across every batch of ammunition you produce.

Key Features

• Determines exact Brinnell hardness number of lead alloys in 6 simple steps
• Includes pocket microscope for measuring impressions
• Works with all cast bullet alloys regardless of caliber or type
• Includes conversion chart correlating hardness to maximum operating pressure
• Helps prevent wasted bullets and components from unsuitable alloys

Specifications

Frequently Asked Questions

Can I use this kit to test alloys for any caliber I cast?

Yes. The hardness test kit works with lead alloys regardless of caliber, so whether you're casting .308 rifle bullets, 9mm pistol rounds, or shotgun pellets, you can measure the hardness of your alloy with one kit.

What does the conversion chart tell me?

The included conversion chart correlates the Brinnell hardness number you measure to the maximum safe operating pressure for that alloy. This helps you match your cast bullets to appropriate loads without exceeding pressure limits.

Is the pocket microscope included?

Yes. The kit includes a pocket microscope designed for measuring the hardness impressions made during the test process.