.50 Caliber Tech Pages

Just the data ma'am!

Main Chart Comparing .68 vs .50
Chart Comparing .68 vs .50 adding 10% more weight to .50 (1.331 grams)
Charting if we increase the velocity of .50 to 400 FPS or 450 FPS
Charting how heavy a .50 would need to be to equal .68 performance
Charting performance with 10 MPH Cross Wind
Comparing what it takes to get Similar FPE and Distance Breaking for Both .68 and .50

Real World Testing Data w/ Better Charting
Drop Over Distance
Image Files:
.50 Caliber Real World Drop Over Distance Data Results
.68 Caliber Real World Drop Over Distance Data Results
.50 and .68 Comparison Chart

Accuracy Test
YouTube Video Accuracy Test

APG Magazine 1990 Data (They figured this stuff out 19 years ago!)
06/1990 APG Cover
1990 APG Article Page 1
1990 APG Article Page 2
1990 APG Article Page 3

Quick Data
.50 caliber ball weight = 1.21 grams
.50 caliber shell thickness = .013 - .010
.50 caliber FPS for testing purposes = 300 FPS
.50 caliber Kool-Aid test = No or little oil found in paint fill
.50 caliber paintballs must weigh 1.5 grams to equal the performance of the .68, anything less is not acceptable.
Insurance company said they don't care what caliber, as long as it is under 300 FPS.

Images of Paint
Front 2
Back 2

VIDEOS: Live Testing using our Data
YouTube Video Part 1 - Initial 50 caliber data and testing
YouTube Video Part 2 - Paintball Drop Test and Shooting
YouTube Video Part 3 - Getting the FM-.50 Gun
YouTube Video Part 4 - Drop over Distance Live Testing

Chart of Results

Proof we are using the final product
The .50 caliber product is being advertised as 5.1 Joules. In this video, Richmond states 5.1 joules at 3:33 into the video, watch it here: Video on Youtube
5.1 Joules = 300 FPS * 1.22 grams
More info: Richmond himself stated 1.2 grams in an interview here: 50 cal interview and is quoted as saying:
"The .50 Caliber paintball is lighter, weighing in at only 1.2 grams, a third of the weight than that of .68 Cal."

Tools Used
Ballistics Program - Round Ball Ballistics
Ballistics Program 2 - ChairGun Pro
Impact Energy Excel Sheet - Download Impact Energy Sheet Here

How to do This Test Yourself!
Step 1: Weight the Paintballs
Find out how much your paintball weighs.

Step 2: The Drop Test
First you need to do a drop test. You drop the paintballs at height (6 feet, 7 feet, 8 feet), and find out where they consistantly break (more than 70% of the time).

Step 3: Check the Impact Energy Chart
Download the Impact Energy Chart in the "Tools" section.
Enter in your paintballs weight from Step 1, and measure the height from step 2. Now you know the force or energy needed to break a paintball.

Step 4: Run the Ballistic Programs
Now by using a Ballistic program, you can find out the energy a paintball has over distance. The further a paintball travels, the less energy it has.
Match up the energy levels with your findings. If the energy level at distance is greater than the energy level in your drop test, you know the paintball will break. If the energy level at distance is less, than it will most likely bounce on soft targets.

© 2009 M. Carter Brown (www.mcarterbrown.com)
All data is free to be used for all purposes.