About Us

Dr Geoffrey Kolbe, Director and CEO
Dr. Geoffrey Kolbe Ph.D., D.I.C., B.Sc., A.R.C.S. obtained his degrees in physics at Imperial College, London University. He then spent ten years doing research as an experimental physicist at Imperial College, and two more years at Lawrence Livermore National Laboratory in the United States, designing and building high precision apparatus to perform challenging and precise measurements to investigate the atomic physics of hot, dense plasmas.

Geoffrey was also a keen three-position target rifle shooter and represented the UK in many international competitions in the UK and in Europe. In 1990, Geoffrey merged his love of shooting and his love of challenging technology to start Border Barrels Ltd., manufacturing rifle barrels for target shooters, barrels for hunters, test barrels for ordnance factories, and high accuracy production barrels for sniper rifle manufacturers. The rifle barrels achieved an enviable reputation for accuracy and were used by Olympic gold medal winners (at least three) and several World champions.

In 2012, Geoffrey Kolbe sold Border Barrels Ltd. But ever ready for a challenge, he started a new company in 2015. Geoffrey had always been frustrated by suppliers of gunsmith tooling in the United States. If a new tool was needed, delivery times were always very extended, and when the tools did arrive, quality tended to be an issue too. So it was that Border Ballistics Technologies Ltd. was founded, to make reamers and gauges for gunsmiths to the quality they need and in the timescale they need.

Geoffrey Kolbe has also published a "Handbook of Ballistics" and has done acted as a consultant on matters of internal and external ballistics. He has also written a number of online programs to perform calculations in internal ballistics, external ballistics, bullet drag, barrel twist, barrel weight and barrel vibrations.