• BT62 Determinator


  • £7.95

  • This product is only available upon request. Please contact us for a quote.


B&T Industries BT62 Determinator measures groups within a 1.5" diameter. Measurements are laser cut into acrylic with a glow-in-the-dark card attached. Shoot three to five shots lay the determinator over the shot group. Adjust until one of the circles cross the centre of the two outer most holes. Read measurement on that circle to determine group size.