Collins Sporting
Goods
I have the tuner set on 100.
Go shoot – take all of the weights off the tuner, and leave it at 100. Take a Lot and warm the gun up – 15 shots – then shoot what the gun has shot the best in the past.
Shoot a 3 shot group with no weights, then add the 1 oz. weight (aluminum) shoot another 3 shots. Take that one off and put the 2 oz. on – shoot 3 shots, then the 3 oz. and shoot 3 shots. Take notice how things are looking – it’s normal to have a shot “thrown” when you change or add weights or move the tuner (because of the threads). Make sure the weights are tight on the tuner. Keep this up until you have used all the weights and different combinations of weights.
One of these weight combinations will look better than the others. Put that combination back together on the tuner and move into Zero and shoot three shot groups going out at 0, 100, 200, 300, 400, and 500.
If it looks best between 200 and 300 for example. Go back to 175 and shot groups of 3 shots going out one revolution to 325. Another example: Say it looks best at 200 and 225 – go to 195 and shoot – then move it 5 clicks (200) and keep moving to you get to 305. Look at the target and if 210 and 215 look good go to 208 and shoot moving 2 clicks at a time to you get to 217. You should find a place where several numbers work - I try to get into the middle of the numbers that work – do not shoot a spike – example – 216 is bad, 217 is good, and 218 is bad.
Now – if you feel it is tuned – mark the action screws and then tighten and/or loosen both of them just a little. Think of it like a clock – tighten from 44 to 45 minutes – this is just a little on the front screw and then shoot a group. Then do the same thing to the rear screw. Keep playing back and forth until the group gets better.
Bob Collins
8-11-09