Gunsmiths around the world need specialist tools such as quality chamber reamers and headspace gauges, and they need them quickly. Border Ballistics Technologies Ltd. (BBT) was created in 2015 to serve that need. The founder of the company, Geoffrey Kolbe, previously owned the highly acclaimed rifle barrel manufacturer, Border Barrels Ltd., and over his 22 year association with the business Geoffrey Kolbe acquired a deep understanding of how to make chamber reamers perform well. Now, Geoffrey Kolbe uses this knowledge to produce the best chamber reamers in the world. Geoffrey Kolbe says that, “Customers expect the best workmanship from their gunsmith, so the gunsmith must use the best tools to satisfy his customers.”
BBT make chamber reamers in carbide as well as high speed steel. The company also makes headspace gauges and counterbore reamers.
Although the factory is situated in a quiet rural valley in amongst sheep farms and forests of the Scottish Borders, the company ships gunsmithing tools around the world and makes a virtue of quick delivery. Even wild-cat reamers can be turned around within one week.
As news of the quality of BBT reamers spreads, more and more customers are agreeing with the Finnish gunsmith who said, "I have used Pacific Tool & Gauge, JGS, Clymer and Triebel, but I must say your grinding finish is the best I have seen".
Reamers, gauges and other tooling can be purchased using pounds sterling, euros or US dollars. Standard chamber reamers are £160 (€205 or US$244)