I have recently purchased a freedom
press with solid nose die and boat tail punch
What an experience and the smartest investment I have ever made
I mainly shoot benchrest 100yards and 50m WRABF
I have done the first tests today I was really impressed I still have to tune my for better harmonics
Slug 40.6 gr
Chapter 3 : Passion
Passion.
It’s the thing that keeps you restless, drives you a little crazy, and pushes you right to the edge — in the best way possible.
When GMI was founded, the mission was simple: build the best pellets and slugs we possibly could. Beautiful projectiles come from beautiful dies and tooling, and from day one we were obsessed with creating tooling that was second to none.
Human beings climb mountains and dive into the deepest parts of the ocean. For us, taking GMI from an idea to what it is today felt like our own mountain to climb.
Chapter 2: The Ethos of Die Making
The art of making a die is defined by time. Time spent honing the craft, refining techniques, and learning (and unlearning) every single day. Mastery does not come quickly, and because of that, true trade secrets cannot simply be written in a manual. What can be shared, however, is the ethos behind our work.
Die vs. Mold
A die shapes metals or non-metals by forcing material into a cavity using punches, pins, or pressure.
A mold forms parts by allowing molten material to flow into a cavity and solidify.
The two are often confused—but they are fundamentally different disciplines.
Chapter 1: Measurement units
At GMI, precision starts with how we measure. We build and gauge our dies and punches using metric units, where the smallest increment we work with is a micron—
1 micron = 0.001 mm = 0.000039 inches.
Why does this matter?
Most American die makers work in thousandths (0.001”) or ten-thousandths (0.0001”) of an inch. These are respectable units, but they simply don’t offer the granularity or fine resolution that micron-level measurement provides. No one in the imperial system works in “0.039 thousandths of an inch,” even though that’s what 1 micron actually is.
