Group Size Checker Keyring
This Group Size Checker Keyring by BRK Brocock is the perfect key fob to gauge accuracy of any air rifle or pistol. The ideal gift for any target shooter, simply attach your car and/or house keys. Then, whenever you are shooting at the club or range, you have the perfect tool in your pocket to instantly check the size of your downrange grouping.
Uses
Use the Group Size Checker to measure the performance of those new pellets you are trying. Perhaps you want to assess your latest piece of kit from our Performance Center? Or maybe you just wish to use it to measure your own performance and assess if you are improving.
Design
The BRK Brocock Group Size Checker Keyring is cleverly designed from transparent acrylic. It is overprinted with circles of varying sizes, representing ‘group size’. All you have to do is place the key fob over your shot target and measure. The printed ring inside of which you can ‘fit’ all your pellet holes indicated your group size. In other words, how accurate your shooting is!
Sizes
The fob is available in either imperial – printed black – or metric – printed red – measurements.
Imperial
Group sizing rings are in 1/4 inch increments, from 1/2 inch to 2″.
Metric
Group sizing rings are in 10mm increments, from 10mm to 50mm.
Bonus
It’s the ideal gift for any target (and even field) airgunner. However, this key fob also carries BRK Brocock’s website information, and those of its sister company Daystate, and its scope brand MTC Optics. So at this price, why not get two – one in imperial, and one in metric?
