"I have a goal to share my knowledge with other shooters. I hope that some of these materials might help you get where you want to go as a shooter a little faster and easier."


Click on any link below to download information, instructions, and specifications.
5 Star Muzzle Brake Info

David Tubb's notes on the 5 Star muzzle brake
33XC/37XC/41XC Writeup

David Tubb's info on the 33XC, 37XC, and 41XC

David Tubb's info on TUBBDUST
David Tubb's Die Instructions

David Tubb's Reloading Die Instructions
6XC Recommendations

David Tubb's Recommendations for the 6XC
Adaptive Target Rifle Writeup

TUBB Adaptive Target Rifle Writeup
Adaptive Target Rifle Detailed Specs

TUBB Adaptive Target Rifle Detailed Specs
Adaptive Target Rifle Press Release

TUBB Adaptive Target Rifle Press Release
2Hole Ammo Press Release

Absolute 2Hole Press Release (July 2016)

2 pages [2MB]
DTR Manual

Updated DTR Reticle Manual (January 2016)

30 pages [182KB]
DTR One Page Instructions

DTR Fast Track Instructions

1 Page [171k]
DRI Press Release

Distance Reduction Indicator Press Release

3 pages [288k]
DRI Instructions

Instructions for the Distance Reduction Indicator

4 pages [473k]
T7T Instructions

Instructions for the T7T Trigger

2 pages [185k]
SSS Bubblevel

Information on the new Bubblevel

3 pages [219k]
SSS Duo Firing Pin Springs

The revolutionary new Duo Firing Pin Spring.

2 pages [121k]
New Barrel Break-In

Newly updated (February 2012) from previous materials, this article explains David Tubb's beliefs and process for breaking in both factory and handlapped barrels. Methods are compared and the procedure is outlined.

4 pages [205k]
Spring Design

This is about how firearms springs work, or should work, and you will learn a good deal from it.

5 pages [200k]
Firing Pin Impact Studies by James A. Boatright

Choosing optimal hammer and striker firing system components. An in-depth look at primer ignition, firing pin design and accuracy, by James A. Boatright.

8 pages [236k]


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