J N L PRXIII Tuner

Set your Tuner with the Purdy Prescription as oultined by Tony Purdy in the 9th Harmonic
Measure your exact barrel length from the breech to the muzzle and we will set it for you.
Our setting should be within a 1/2 turn in either direction.
Greatly simplifies your tuning procedure
3 Nylon Tip Screws to lock down your tuner once it is set
We will set it for you before shipping

Be sure to give us barrel length and diameter when placing your order.