https://www.tenrings.co.uk/
The best and its free
https://www.tenrings.co.uk/
The best and its free
,AA , Magtech , Arnie, Sako, Ruger . plus the others .
Good site thankyou
I've put together a few articles covering the fundamentals and mechanics when shooting replica air pistols under 'Rockhamster Tactical' here https://www.gunbuck.co.uk/feed
Might be something of interest for you.