TargetTalk

I guess I'm finally getting enough practice in to require cylinder change and refill. I noticed significant change in vertical point of impact when changing from a low to a high pressure cylinder. Is there a standard number of clicks down that people do when changing cylinders like this?

What gun are you using?
With top-end guns (Styeyr, Morini, modern Walther, Pardini etc) there should be no reason to change the sights. If there is on your gun, and you're sure that it isn't just between the ears, then maybe a proper gun overhaul by someone who knows what they're doing is in order.

Many fire a couple of shots without pellets. Does it help??? Sometimes.

It’s a used LP10 that I purchased recently from Pilkington. The cylinder I started on was already low and I ran it all the way out. The last few pellets were impacting progressively lower and to the right until I actually missed the trap. After the change to full, freshly charged cylinder, the impacts are all high and clustered in the 6 ring area. How many clicks does it take to get to the center of a tootsie roll pop?

Don't run it all of the way out.

The advice to never run tbe tank empyy is spot on...... Heres why..... Proper target airguns are regulated. This means there is a device in the gun that takes incoming high pressure air from the cylinder and reduces it to the pressure required to shoot the gun. This gives you really consistent velocitys and with that accuracy. As the tank pressure comes down, you get to a point where the tank pressure and regulated pressure are equal. There is still a bunch of air in tbe tank BUT each shot beyond this point gets slower and slower and accuracy suffers tremendously and it gets worse shot to shot. Anything you do to tbe Sights below regulated pressure is meaningless and will only screw you up when you fill the gun. Another very bad thing that can happen is to stick a pellet in the barrel and mash a few more in behind it. Shooting low filled air tanks really has no upside..... My manometers on my gun has a marked low pressure area that stay out of. I fill before I get to it.

As far as the shot grouping in a small cluster in the 6 ring High, I bet you are shooting a gun sighted sub 6 at a the center of tbe target. Most of us shoot some form of sub 6 aim where we will float tbe black ball just above the front sight post. Sight picture discussions are all over this forum so Ill let you read them without rehashing thngs........

Hope this helps....

I'm using a sub six sight picture. It's clustering on the six ring up high. How many clicks is that?

For MY LP10, it is about three clicks per pellet hole width

Thank-you. That explains a lot. I've been going through a lot of pellets gradually stepping it down. That gives me confidence to take it on down.

You can find the clicks measure in the manual or in this page http://www.pilkguns.com/tenp/spstlp10p.htm

Go down 16 clicks. Shoot a 10 shot target. Make no adjustment. Put a new target over the old and shoot another ten. Repeat.

Look at the bottom target. Take the center of the hole and make your correction from that at four clicks per scoring ring.