Air Arms Owners Club

If you are filling and you are hearing a squeaking noise....could be the rings on the fill adapter. I know all of mine did this, but it is nothing to worry about.

My sheep squeaks when she's filling up

This is "blowuptoys.net" forum isnt it

That's good advice, I'm a customed to a regulated rifle and I haven't quite found the sweet spot yet. As an aside, most guns make a noise when over filled, usually a massive bang.

sparrowhawkfalconer wrote:Thanks for only sniggering, seriously though thank you for your help. I really need to find out where my sweet spot is(rifle that is) there any more advice to ad to the advice above, thank you

Do you want tips on finding the sweet spot?

Please Raj

Here is a simple version in plain language.
1. Fill to 190 bar.
2, Keep shooting till you are down to about 90 bar.
3. Record the pellet speed for each shot and group them in lots of 10 - also make a note of the amount of bars of pressure left in the tank at every 10th shot.

Plot the numbers on a plain line graph. Assuming it is a S410 Classic the graph will start off by rising, then kind of flatten out at around 170 bar pressure or the 10th or 15th shot. It will then start falling at around 110 bar pressure or the 70th or 80th shot. Soon they will be back where they were when your tank was full.

These numbers will vary from rifle to rifle – even if they are the same make and model. The numbers I have quoted are just for example. ‘Finding the sweet spot’ is about going through the above steps and figuring out where that flat bit is for your rifle. Once you know this, you only need to fill to the pressure at the start of the flat part of the graph and re-fill when you get to the pressure at end of it. That way, you use less air and gain consistency over the shots.

Hope that helps!